Pac Racing Springs ~ RPM Series Duals

Part# Name Outside Diameter Install Height Load at Installed Height Recommended Valve Lift

PAC-1204X

PAC-1204X RPM Series Dual 1.29 1.8 145 0.7

PAC-1205X

PAC-1205X RPM Series Dual 1.304 1.8 155 0.7

PAC-1206X

PAC-1206X RPM Series Dual 1.29 1.8 145 0.7

PAC-1207X

PAC-1207X RPM Series Dual 1.304 1.8 155 0.7

PAC-1208X

PAC-1208X RPM Series Dual 1.324 1.8 160 0.75

PAC-1209X

PAC-1209X RPM Series Dual 1.324 1.8 160 0.75

PAC-1221X

PAC-1221X RPM Series LS Ovate Wire Dual Spring 1.3 1.8 160 0.65

PAC-1222X

PAC-1222X RPM Series LS Aftermarket Cylinder Head Dual 1.28 1.8 180 0.7

PAC-1236X

PAC-1236X RPM Series LS Aftermarket Cylinder Head Upgrade Dual 1.31 1.8 156 0.65

PAC-1237X

PAC-1237X RPM Series RACE ONLY Dual 1.274 1.8 200 0.7

PAC-1238X

PAC-1238X RPM Series RACE ONLY Dual 1.274 1.8 250 0.75