1935-1948 Stainless Exhaust Manifold Header for 1935-1948 Chevrolet Chevy Small Block
Brand New
Guaranteed Safe Checkout
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
SHIPPING & DELIVERY
Fast Processing & Reliable Transit
- Processing: Orders are processed and shipped from the nearest warehouse within 24 hours.
- Delivery: Estimated delivery time is approximately 4 to 5 business days.
RETURNS & EXCHANGES
30-Day Hassle-Free Policy
- Return Window: We offer a 30-day return policy from the date of delivery.
- Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.
WARRANTY
2-Year Limited Replacement Warranty
- Duration: All products are backed by a 2-year limited warranty.
- Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).
CUSTOMER SUPPORT
We’re Here to Help – Contact Us First
- Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
- Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
- Email Support: You can reach us at support@SAMEXHAUST.com.
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.

