PAC Racing’s Modern Muscle Valve Springs are comprised of several different valve springs series that provide fitment for GM Gen III/IV LS, GM Gen V LT, Ford Mod Motor, Ford Coyote, Ford Godzilla, Ford GT500, Chrysler Gen III Hemi, and Chrysler SRT-10 Viper applications. While valve springs are grouped by application here, more information can be found on their spring series page or individual product page.
Showing 1–16 of 36 results
Top 0.630 in. / Bottom 0.805 in. ID – Top 1.035 in. / Bottom 1.210 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
Top 0.630 in. / Bottom 0.805 in. ID – Top 1.035 in. / Bottom 1.210 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
Top 0.680 in. / Bottom 0.845 in. ID – Top 1.085 in. / Bottom 1.250 in. OD – 1.750 in. installed Height – 0.600 in. Max Valve Lift
Top 0.680 in. / Bottom 0.845 in. ID – Top 1.085 in. / Bottom 1.250 in. OD – 1.750 in. installed Height – 0.600 in. Max Valve Lift
Top 0.636 in. / Bottom 0.738 in. ID – Top 0.959 in. / Bottom 1.061 in. OD – 1.640 in. installed Height – 0.550 in. Max Valve Lift
Top 0.636 in. / Bottom 0.738 in. ID – Top 0.959 in. / Bottom 1.061 in. OD – 1.640 in. installed Height – 0.550 in. Max Valve Lift
Top 0.636 in. / Bottom 0.698 in. ID – Top 0.999 in. / Bottom 1.061 in. OD – 1.640 in. installed Height – 0.600 in. Max Valve Lift
Top 0.636 in. / Bottom 0.698 in. ID – Top 0.999 in. / Bottom 1.061 in. OD – 1.640 in. installed Height – 0.600 in. Max Valve Lift
Top 0.567 in. / Bottom 0.662 in. ID – Top 0.930 in. / Bottom 1.025 in. OD – 1.670 in. installed Height – 0.550 in. Max Valve Lift
Top 0.567 in. / Bottom 0.662 in. ID – Top 0.930 in. / Bottom 1.025 in. OD – 1.670 in. installed Height – 0.550 in. Max Valve Lift
Top 0.580 in. / Bottom 0.742 in. ID – Top 0.943 in. / Bottom 1.105 in. OD – 1.470 in. installed Height – 0.500 in. Max Valve Lift
Top 0.580 in. / Bottom 0.742 in. ID – Top 0.943 in. / Bottom 1.105 in. OD – 1.470 in. installed Height – 0.500 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.055 in. / Bottom 1.290 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.055 in. / Bottom 1.290 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.072 in. / Bottom 1.307 in. OD – 1.800 in. installed Height – 0.625 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.072 in. / Bottom 1.307 in. OD – 1.800 in. installed Height – 0.625 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.055 in. / Bottom 1.290 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
Top 0.650 in. / Bottom 0.885 in. ID – Top 1.055 in. / Bottom 1.290 in. OD – 1.800 in. installed Height – 0.600 in. Max Valve Lift
0.616 in. ID – 1.300 in. OD – 1.800 in. installed Height – 0.800 in. Max Valve Lift
0.616 in. ID – 1.300 in. OD – 1.800 in. installed Height – 0.800 in. Max Valve Lift
0.630 in. ID – 1.284 in. OD – 1.900 in. installed Height – 0.750 in. Max Valve Lift
0.630 in. ID – 1.284 in. OD – 1.900 in. installed Height – 0.750 in. Max Valve Lift
0.694 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.625 in. Max Valve Lift
0.694 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.625 in. Max Valve Lift
0.694 in. ID – 1.304 in. OD – 1.800 in. installed Height – 0.650 in. Max Valve Lift
0.694 in. ID – 1.304 in. OD – 1.800 in. installed Height – 0.650 in. Max Valve Lift
0.680 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
0.680 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
0.694 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
0.694 in. ID – 1.290 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
0.694 in. ID – 1.304 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
0.694 in. ID – 1.304 in. OD – 1.800 in. installed Height – 0.700 in. Max Valve Lift
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