Schoenfeld - 2 in Primary - 3.5 in Collector - All Pro Heads - Small Block Chevy (Pair) HP20W50C User/owner is responsible for costs

User/owner is responsible for costs above and beyond a standard recertification procedure

Valve Material: Premium FKM - Lasts Much Longer Than OEM Plastic & Rubber Valve

Maintain recommended Fluidampr press fit of 0

Load Bolts Provide Additional Support For Diff

No notch required

Schoenfeld - 2 in Primary - 3.5 in Collector - All Pro Heads - Small Block Chevy (Pair) HP20W50C User/owner is responsible for costsProduct Description: Headers 2 in Primary 3. 5 in Collector Gaskets Hardware Included Steel Black Paint All Pro Heads Small Block Chevy Pair Founded in 1974, Schoenfeld Headers is the largest circle track header manufacturer in the world. Schoenfeld Headers is the manufacturer of competition headers, mufflers and exhaust systems. Schoenfeld Headers listen to their customers, understanding your needs and giving you a quality product at a fair price.