Certified Automotive Experts Polished Stainless Steel Long Tube Headers – Gen 1 Small Block Chevy SBC 265–400 V8 (1973–1987 Trucks, Blazer, Suburban, Jimmy)Engineered for classic Chevy/GMC Square Body trucks, these long tube headers are purpose-built for Gen 1 SBC 265, 283, 305, 307, 327, 350, and 400 engines in 1973–1987 C10, K10, C20, K20, C30, K30, R10–R30, and V10–V30 pickups, as well as Blazer, Suburban, and Jimmy models. They also extend compatibility through 1991 on Blazer, Jimmy, and Suburban 2500/3500 models still built on the Square Body platform.Constructed from 304 polished stainless steel with TIG-welded seams, these headers deliver strength, corrosion resistance, and a mirror finish that elevates any restoration or performance build. The long-tube design improves exhaust scavenging and flow while maintaining durability for daily use or classic truck builds.The CAE-H002 package includes a premium upgraded gasket set:● Solid copper collector gaskets for superior heat resistance and long-term sealing.
● Multi-layer copper/fiber cylinder head gaskets for a reliable seal at the head flange.
● Hardware and 3-bolt collectors are also included for a complete installation solution.
Fitment Notes & Install Guidance:● Fits both 2WD and 4WD trucks; unlike earlier guidance, recent installations confirm proper fitment even on stock-height 4x4 models.
● Some clutch linkage clearance issues may occur on manual transmission models; adjustments may be necessary during installation.
● Header spark plugs and heat shields may be required for proper clearance; recommended options include Accel 0576S (taper seat) or Accel 0414S (gasket seat).
● We strongly recommend watching the Certified Automotive Experts installation video before purchase, as it provides essential fitment notes, tips, and tricks to ensure a smooth install.
Technical Specifications:1. Style: Long tube headers
2. Primary Tubes: 1-5/8”
3. Collectors: 2-1/2” outlet, 3-bolt design
4. Flanges: 3/8” thick
5. Material/Finish: Polished 304 stainless steel with TIG-welded seams
6. Includes: Copper collector gaskets, multi-layer copper/fiber header gaskets, hardware, and 3-bolt collectors
Important Note:These headers are designed specifically for classic Chevy/GMC Square Body truck applications (1973–1987, extended through 1991 on select models). They are dimensionally engineered to bolt up to SBC engines in those platforms and are not listed for vehicles outside this range.
