PAC Racing Springs PAC-1239-16 valve springs. Features 1200 Series Circle Track dual spring with damper, 540 lb/in rate, 1.180 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.
PAC Racing Springs PAC-1245-16 valve springs. Features 1200 Series Circle Track dual spring design, 526 lb/in rate, 1.200 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.
PAC Racing Springs PAC-1243-16 valve springs. Features 1200 Series Circle Track dual spring design, 550 lb/in rate, 1.150 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.
PAC Racing Springs PAC-1325-16 valve springs. Features 1300 Series Circle Track dual spring design, 644 lb/in rate, 1.150 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.
PAC Racing Springs PAC-1343-16 valve springs. Features 1300 Series Circle Track dual spring design, 550 lb/in rate, 1.150 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.
PAC Racing Springs PAC-1354-16 valve springs. Features 1300 Series Drag Race dual spring design, 1015 lb/in rate, 1.230 in coil bind, 1.550 in OD, set of 16, ideal for drag racing applications.