PAC Racing Springs 1.355 Valve Spring for Small Block Chevy | PAC-1212X

PAC Racing Springs PAC-1212X-16 valve springs. Features RPM Series single spring design, 380 lb/in rate, 1.180 in coil bind, 1.355 in OD, fits Small Block Chevy GM 604 crate engine, set of 16, ideal...

PAC Racing Springs PAC-1349 valve spring. Features 1300 Series Drag Race triple spring design, 689 lb/in rate, 1.130 in coil bind, 1.645 in OD, each, ideal for drag racing applications.

PAC Racing Springs PAC-1248 valve spring. Features 1200 Series Drag Race triple spring design, 687 lb/in rate, 1.130 in coil bind, 1.645 in OD, each, ideal for drag racing applications.

PAC Racing Springs PAC-1225 valve spring. Features 1200 Series Drag Race dual spring design, 644 lb/in rate, 1.150 in coil bind, 1.550 in OD, each, ideal for drag racing applications.

PAC Racing Springs PAC-1335 valve spring. Features 1300 Series Drag Race dual spring design, 813 lb/in rate, 0.985 in coil bind, 1.300 in OD, each, ideal for drag racing applications.