Fat Fenderwell Exhaust Headers Fit for 1935-1948 Chevy Small Block 265-400 V8

Fat fenderwell exhaust headers designed for compatible 1935-1948 Chevrolet street rod and pickup applications equipped with Small Block Chevy 265-400 V8 engines. Constructed from high-quality 201 stainless steel with computerized mandrel bends, TIG-welded CNC-machined flanges, and a 2-piece 4-1 racing configuration. Designed for compatible custom, street rod, and classic pickup builds using the specified Small Block Chevrolet exhaust pattern.

Vehicle Fitment

• Fit for compatible 1935 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1936 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1937 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1938 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1939 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1940 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1941 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1942 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1943 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1944 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1945 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1946 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1947 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible 1948 Chevrolet fat fenderwell street rod and pickup applications
• Fit for compatible Chevrolet Small Block 265-400 V8 engines
• Compatible with most angle-plug cylinder heads
• Designed primarily for fat fenderwell, street rod, custom rod, and pickup applications
• Vehicle-specific installation depends on engine position, cylinder-head configuration, steering layout, frame clearance, and existing exhaust routing
• Please verify your exact engine, cylinder-head exhaust pattern, chassis layout, and available fenderwell clearance before purchasing
• Engine swaps, custom frames, aftermarket suspension or steering components, and modified exhaust systems may affect installation compatibility

Product Highlights

• Small Block Chevy Compatibility – Designed for compatible Chevrolet Small Block 265-400 V8 engine applications
• Fat Fenderwell Header Design – Intended for compatible 1935-1948 street rod and pickup builds using an outside-frame or fenderwell-style exhaust layout
• 201 Stainless Steel Construction – Made from high-quality 201 stainless steel for strength and durability
• Mandrel-Bent Tubing – Computerized mandrel bends help maintain a smoother exhaust flow path through the header tubing
• 2-Piece 4-1 Racing Design – Uses a two-piece 4-into-1 configuration for each side of the V8 exhaust system
• 8-2-1 Overall Layout – Eight cylinder exhaust paths merge through the specified dual-header configuration
• TIG-Welded CNC Flanges – Features TIG-welded CNC-machined flange construction for the specified mounting layout
• Angle-Plug Head Compatibility – Designed to work with most compatible angle-plug Small Block Chevy cylinder heads

Product Specifications

• Product Type: Fat Fenderwell Exhaust Headers
• Vehicle Make: Chevrolet / Chevy
• Engine Family: Small Block Chevrolet / SBC V8
• Engine Compatibility: 265-400 Cu. In. V8
• Vehicle Application: Fat Fenderwell Street Rod / Pickup
• Vehicle Years: 1935-1948
• Header Configuration: 2-Piece 4-1
• Overall Exhaust Layout: 8-2-1
• Material: 201 Stainless Steel
• Construction: Computerized Mandrel-Bent Tubing
• Flange Construction: TIG-Welded CNC-Machined
• Cylinder Head Compatibility: Most Angle-Plug Heads

Package Includes

• 1 × Set of Fat Fenderwell Exhaust Headers
• Gaskets
• Mounting Hardware

Installation Notes

• Please verify the exact engine, cylinder-head configuration, and chassis layout before purchasing
• Designed for compatible Chevrolet Small Block 265-400 V8 engines
• Compatible with most angle-plug cylinder heads
• Confirm fenderwell clearance, frame clearance, steering clearance, spark-plug access, and exhaust routing before installation
• Custom street rods and pickup builds may have different engine positions, suspension layouts, and steering components that affect header clearance
• Engine swaps, aftermarket cylinder heads, custom frames, or modified exhaust systems may require additional fabrication or fitment adjustments
• Professional installation is recommended