Description
Overview
The Flowmaster Scavenger Series Elite Header is a long tube header engineered to replace the restrictive factory cast iron exhaust manifolds on GM Big Block engines. Built for the enthusiast who wants the best, these headers open up your exhaust flow to help your big block breathe freely, unlocking the performance that restrictive stock manifolds leave on the table. Constructed from stainless steel and finished in a durable silver ceramic coating, they combine serious flow with long-term durability.
Each header is built around 2 inch primary tubes in an unequal-length long tube design, feeding into Flowmaster’s popular 3-1/2 in. ball flange collector connections for a proven, leak-free seal. The 3/8 in. thick flanges with round inlet ports and a flanged attachment method provide a solid, warp-resistant mounting surface, while 16-gauge tube wall construction stands up to the demands of high performance driving.
Key Benefits
Like all Flowmaster products, the Scavenger Series Elite is designed to deliver improved throttle response, added power and greater engine efficiency. Replacing the cramped cast iron manifolds with free-flowing long tube headers is one of the most effective ways to wake up a GM Big Block, and the ceramic coating helps manage under-hood temperatures while resisting corrosion for a great-looking, long-lasting finish.
- GM Big Block fitment with long tube, unequal-length primary design
- Stainless steel construction with silver ceramic coating for durability and heat management
- 2 in. primary tubes flowing into a 3.50 in. collector for strong performance
- 3/8 in. thick flanges with round inlet ports and flat band clamping for a secure, leak-free seal
- 3-1/2 in. ball flange collector connections for reliable, leak-free installation
- 16-gauge tube wall thickness rated as High Performance grade
Complete Installation Package
These headers are designed for an easy fit and arrive ready to install. Gaskets, reducers, collectors and the necessary hardware — including 3/8-16 x 1 bolts and studs — are all included, so you have what you need to complete the job. The flat band clamping type and flanged connections make for a straightforward, secure assembly.
Fitment & Compliance Notes
Note 1: Big block frame stands and motor mounts must be used to ensure proper engine location and correct header fit. Note 2: This product carries a California Proposition 65 warning and is NOT CARB (California) compliant. It is legal only for off-highway use (except in California or states that have adopted California emission standards), racing use, or for use on pre-emission controlled motor vehicles and engines. Please confirm your application and local regulations before purchase.
