Standard Big Block Chevy Freshwater Merc Headers 36

Lightning Big Block Chevy Freshwater Merc Headers 36" Wide

310-40 + Option
Starting From:
$1,999.99
This Part has options, please click the button below to order.

Standard Big Block Chevy Freshwater Merc Kit 36" Wide

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


Standard Jacketed Header - Big Block Chevy Jet Drive 36

Lightning Big Block Chevy Jet Drive 36" Wide Standard Jacketed Header

310-40 + Option
Starting From:
$2,099.99
This Part has options, please click the button below to order.

Standard Jacketed Header - Big Block Chevy Jet Drive 36" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds.However, they terminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Headers will have about 1/2" clearancebetween header and tall Moroso valve covers. Headers come complete with bolts, gaskets, waterfittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Below Swim Platform Low Port Exit Jacketed Headers - 454/502 Chevy

Lightning Big Block Chevy Low Port Exit Jacketed Headers 36" Wide

310-40 + Option
Starting From:
$2,399.99
This Part has options, please click the button below to order.

Below Swim Platform Low Port Exit Jacketed System - 454/502 Chevy Low Port Headers 36" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds whenthe exhaust ports are mounted low in the boat. For example, under the swim step or whenelbows are used with the stock manifolds. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, petcocks, 4" elbows for bottom, etc. (less 4" hose and 4" hose clamps). Factory oil filterrequires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Lightning Silent Choice Big Block Chevy Headers 36

Lightning Silent Choice Big Block Chevy Headers 36" Wide

310-40 + Option
Starting From:
$2,999.99
This Part has options, please click the button below to order.

Silent Choice Jacketed Header System - Lightning Silent Choice Big Block Chevy 36" Wide

Our 40322, 40324 and 40326 headers incorporate the end of the header with the silent choicevalve. The 40322 uses the air operated actuators from the Mercury valves. The 40324 and 40326 useselectric solenoids supplied to operate the valves. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, pet cocks,exhaust valves, 5" hose and clamps (less 4" hose and 4" hose clamps). Note: you cannot operate HPengines at high rpm's with valve shut. Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


BBC 36

Lightning Big Block Chevy 36" Wide Reduced Water Headers

310-40 + Option
Starting From:
$2,199.99
This Part has options, please click the button below to order.

Reduced Water Distribution Header - BBC 36" Wide Reduced Water Headers

Reduced water helps reduce reversion by reducingexhaust stream water. Only enough water enters the exhaust tokeep hoses, etc. cool. The remainder gets dumped overboard via a3/4" fitting at the end of header. This is the only option that will helpthe silent choice system. Oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Standard Big Block Chevy Freshwater Merc Headers 33

Lightning Narrow Big Block Chevy Freshwater Merc Headers 33" Wide

310-40 + Option
Starting From:
$2,399.99
This Part has options, please click the button below to order.

Standard Big Block Chevy Freshwater Merc Kit 33" Wide

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


Big Block Chevy Freshwater Low Port Headers 33

Lightning Narrow Big Block Chevy Low Port Headers 33" Wide

310-40 + Option
Starting From:
$2,699.99
This Part has options, please click the button below to order.

Big Block Chevy Freshwater Low Port Kit 33" Wide, 12" Drop

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel waterjacketed headers. For the thousands of pleasure boaters "NOT" affected by thecorrosion problems associated with Salt Water there is at last the availabilityof a true tubular header system for the Fresh Water boater. These headers aredesigned to be a replacement for Mercury, OMC or jet manifolds. However, theyterminate approximately 8" aft of stock manifolds and are projected to meet theexhaust tips providing they are in the stock location. Low Port Headers are alsoavailable for under the swim step applications. Standard width headers will haveabout 1/2" clearance between header and tall style Moroso valve cover. Headerscome complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hoseand 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !

Our Magnum header starts with Mandrel bent 316L stainless steel interiortubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). Thetubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of theheader while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a DualPorcelain Coating that resists corrosive water environments. Now able to applythe same high tech coating to the fresh water series of steel outer lined thusaiding in the prevention cracking and deterioration.


Big Block Chevy Mercury All Stainless Steel Headers 36

Lightning Big Block Chevy Mercury All Stainless Steel Headers 36" Wide

310-403 + Option
Starting From:
$3,799.99
This Part has options, please click the button below to order.

Big Block Chevy Mercury All Stainless Steel System 36" Wide, for Saltwater Applications

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance.  The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


Big Block Chevy Jet All Stainless Steel Headers 36

Lightning Big Block Chevy Jet All Stainless Steel Headers 36" Wide

310-404 + Option
Starting From:
$3,899.99
This Part has options, please click the button below to order.

Big Block Chevy Jet All Stainless Steel System 36" Wide

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance.  The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


Big Block Chevy Mercury All Stainless Steel Headers 33

Lightning Narrow Big Block Chevy Mercury All Stainless Steel Headers 33"

310-403 + Option
Starting From:
$4,099.99
This Part has options, please click the button below to order.

Big Block Chevy Mercury All Stainless Steel System 33" Narrow

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance.  The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


Big Block Chevy All Stainless Steel Headers with Stainless Dry Tailpipe 36

Lightning Big Block Chevy All Stainless Steel Headers with Dry Tailpipe 36" Wide

310-404 + Option
Starting From:
$4,299.99
This Part has options, please click the button below to order.

Big Block Chevy All Stainless Steel System with Stainless Dry Tailpipe 36" Wide

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance.  The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


Big Block Chevy Big Tube Headers 2-1/4

Lightning Big Block Chevy Big Tube Headers 2-1/4" Primaries

310-40504
Your Price:
$2,799.99

Quantity:  

Big Block Chevy Big Tube Headers 2-1/4" Primaries (Standard Merc Exhaust Location) Black Finish

These headers are designed to be a replacement for Mercury manifolds. Headers will have about 1/2" clearancebetween header and tall Moroso valve covers. Headers come complete with bolts, gaskets, waterfittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Big Block Chevy All Stainless Steel Wet 2-1/4

Lightning Big Block Chevy All Stainless Steel Wet 2-1/4" Tube Headers

310-40600
Your Price:
$3,999.99

Quantity:  

Big Block Chevy All Stainless Steel Wet 2-1/4" Tube Header System, BlackFinish (38" OAW) Black Finish

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance. The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


BBC Jacketed Headers with Stainless Dry Pipe

Lightning Big Block Chevy Jacketed Headers with Stainless Dry Pipe 36" Wide

310-40407
Your Price:
$2,499.99

Quantity:  

BBC Jacketed Headers with Stainless Dry Pipe

Dry stainless steel jacketed tailpipes eliminate reversion totally. 4-1/2" diameter tail pipe protrudes past transom approximately 6", jacketed. Can be designed to exit water prior to transom or at end of tip. Very, very loud.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in. That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option they are able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.