Description
Raceworks AN-4 LS Steam Port Fitting – 2 Port suit LS1 L76 L98 LS3. LS Steam Port Fitting AN-4 2-Port.
Steam vent adapters are designed for the LS series of engines to eliminate trapped air and steam from the engine and prevent hot spots and overheating. The adapter has O-Ring seals and converts to AN-4 Male Flare fittings. Use the 1 port version when routing to a T piece or block, and use the 2 port version to run corner to corner.
Installing these steam port adapters has been proven to decrease detonation in cylinders 7 and 8 and are a great improvement over the OEM steam vent plumbing.
All Raceworks products come with a 2 year warranty.
Raceworks Part Number: RWF-347BK














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