Our 4-1 Long Tube Style off-road headers are designed for fat fendered Chevy's and Fords from 1936-1948. They are designed to run the exhaust over the frame rails inside the fender wells. Tubing has been optimized for the Small Block Chevy 283/302/305/307/327/350/400 cubic inch engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Made of high quality T-304 stainless steel with computerized mandrel-bends for strength and durability
i.e. Maximizing smoothest high exhaust air flow rate
TIG welded CNC machine flange
2-Piece 4-1 Racing design(8-2-1)
Increase high flow air, instantly gain 10 to 15 Hp. / Tq.
Includes:
1 x Header exhaust system
All necessary installation hardware
Notes:
Fits Chevy small block 265-400 V8 engine
Fits 1935-1948 fat fender well street rod and pickup application
Fits most angle plug heads
100% Brand New
Professional Installation is Highly Recommended
Installation Instruction is NOT Included
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