1935-1948 Stainless Exhaust Manifold Header for 1935-1948 Chevrolet Chevy Small Block
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.
Features
- 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.
- Engineered and Tested to Exceed Original Equipment Standards and Performance
- Professional Installation is Highly Recommended (No Instruction Included).
Fitment:
- Fits Chevy small block 265-400 V8 engine
- Fits 1935-1948 fat fender well street rod and pickup application
- Fits most angle plug heads
Attention
Products on this site are for off-road/racing use only and are not legal for public roads where emissions laws apply.
Professional installation recommended. Removing emissions equipment (DPF, CAT, SCR, DOC) requires deleting related sensors and a compatible tuner to avoid engine codes.
Performance gains may vary—no guarantees.
