COMP Cams Valve Springs 1.550in Nascar 933-12 Tire-Rite Metal bushing ID: 7/16" /

Metal bushing ID: 7/16" / 10mm

" Durable Double Bellows Springs

814" inside diameter are used to equalize the installed height of valve springs

3mm) COMPATIBLE

COMP Cams Valve Springs 1.550in Nascar 933-12 Tire-Rite Metal bushing ID: 7/16" /COMP Cams Valve Springs, Retainers 933 12 Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams Dual Valve