Engine & PerformanceValves & Springs PAC 1.620 OD, 0.645 ID, 0.030 Thickness Engine & PerformanceValves & Springs PAC 1.040 OD, 0.615 ID, 0.030 Thickness Shim Engine & PerformanceValves & Springs PAC 1.500 OD, 0.570 ID, 0.030 Thickness Shim Engine & PerformanceValves & Springs PAC 1.250 OD, 0.570 ID, 0.030 Thickness Shim Engine & PerformanceValves & Springs PAC 1.500 OD, 0.645 ID, 0.050 Thickness Engine & PerformanceValves & Springs PAC 1.500 OD, 0.570 ID, 0.050 Thickness Shim Engine & PerformanceValves & Springs PAC 1.250 OD, 0.570 ID, 0.050 Thickness Shim Engine & PerformanceValves & Springs PAC 1.620 OD, 0.645 ID, 0.050 Thickness Engine Misc PAC Throttle Springs – 3.750 Long – heavy Engine Misc PAC Throttle Springs – 3.750 Long – med Engine Misc PAC Throttle Springs – 2.500 Long – heavy Engine Misc PAC Throttle Springs – 5.000 Long – light Engine Misc PAC Throttle Springs – 2.500 Long – med Engine Misc PAC Throttle Springs – 2.500 Long – light Engine Misc PAC Throttle Springs – 5.000 Long – med Engine Misc PAC Throttle Springs – 3.750 Long – light Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .630 Guide Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .570 Guide Engine & PerformanceValves & Springs PAC Chrome Moly (0.060 Thickness) Seats- .575 Guide Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .520 Guide Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .630 Guide Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .570 Guide f Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .630 Guide Engine & PerformanceValves & Springs PAC Chrome Moly Steel (0.060 Thickness) Seats- .630 Guide ← 1 2 3 … 8 9 10 11 12 13 14 … 35 36 37 →