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496 Mag/HO B/B Chevy 8.1 Liter Mercury 37


496 Mag/HO B/B Chevy 8.1 Liter Mercury 37

496 Mag/HO B/B Chevy 8.1 Liter Mercury 37" Wide Freshwater Headers 

310-40208

496 Mag/HO B/B Chevy 8.1 Liter Mercury 37" Wide Freshwater Kit (Silver Finish)

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel water jacketed headers. For the thousands of pleasure boaters "NOT" affected by the corrosion problems associated with Salt Water there is at last the availability of a true tubular header system for the Fresh Water boater. 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 the exhaust tips providing they are in the stock location. Low Port Headers are also available for under the swim step applications. Standard width headers will have about 1/2" clearance between header and tall style Moroso valve cover. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 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 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 corrosive water environments. Now able to apply the same high tech coating to the fresh water series of steel outer lined thus aiding in the prevention cracking and deterioration.

At last the easiest to install and most rewarding horsepower upgrade is now available for your 496 MAG and 496 HO mercury engine. Starting with the same superior production found in all lightning header Lightning has constructed a water-jacketed header designed as a direct replacement for the factory style 496-engine assemblies. Each header feature 2" id primary tubes mated to an oversized 5’ inlet collector reduced to accept the 4" factory hose connection. Simple incredible power gains have been achieved with just this simple installation. Improved throttle response as well as fuel efficiency are also a plus. Each system comes with the necessary accessory relocation hardware.

NOTE: Fuel pressure adjustments may be required.

50 To 60 Horsepower Gains have been reported with tubular header installation on the 496.

MSRP: $2,764.99
Your Price: $2,399.99 
You Save: 13% off MSRP!

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