These 4-1 Long Tube Headers are designed specifically for a Jet Boat application with a Big Block Chevy engine. Headers feature ports for optional water injection system. These headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 396, 402, 427 and 454 engines.
1 x Set of Header Exhaust System, Gasket(s) and Bolt(s)
Big Block Chevy 496 MAG BBC V-Drive Jet Boat