Big Block Chevy Valve Cover Breathers. VALVE COVERS 572 CHEVROLET Used on all 572-cubic-inch crate engines and can be used on most Big-Blocks Cast aluminum with 572 Chevrolet as part of the casting One cover has oil fill and breather holes and the second cover has the breather hole only. Valve Cover Breathers 2 Inch for Big Block Chevy 396 427 454 502 Chrome Set of 2Chevy 396 427 454 502 Chrome Set of 2 Valve Cover Breathers 2 Inch for Big BlockBreathers Will Sit 1 58 Off The Valve Cover When Installed BB Chevy Valve Covers BB Chevy Air Cleaners BB Chevy Combo Kits.
Filter Results Filter by. Valve Cover Breather for Big Block Chevy 396 427 454 502 Chrome. 12341993 Push-In Oil Filler Cap.
Stock-style breather baffles prevent oil usage through the PCV valve.
Page of 1. Free shipping Free shipping Free shipping. No venting no fresh air to replace the harmful blowby vapors. Special breathers for the ZZ572 valve covers.