Valve Train
Crower has over 8000 listed high performance engine parts available for race, street, marine, diesel, truck, motorcycle, offroad
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Valve SpringsSKU: 68405-20Valve Springs 1.405 Tungsalloy Dual (Set of 20) Learn More -
Valve Springs Valve Springs 0.630 in. ID – 1.274 in. OD – 0.750 in. Max Valve Lift (Set of 16) #PAC-1238XSKU: 68437-16Valve Springs 0.630 in. ID – 1.274 in. OD – 1.800 in. installed Height – 0.750 in. Max Valve Lift (Set of 16)
PAC Racing’s RPM Series Dual Valve Springs #PAC-1238X are constructed using our signature PACaloy super clean wire and are heat-treated in-house for precision spring rates and improved strength. They also receive a multi-peen process, polishing, and a Nano-Peen™ proprietary surface treatment for service life optimization. These springs fit GM Gen III/IV LS engines with specific part numbers for stock heads and aftermarket heads.
- Built using our signature PACaloy super clean wire to ensure strength and durability
- In-house heat-treating for precise spring rates and increased strength
- Multi-peen process to optimize service life
- Polishing to improve operating cycles
- Nano-Peen™ proprietary surface treatment
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Valve SpringsSKU: 68443-16Valve Springs 4.6L Ford Ovate Beehive 1.061 LE dia.636 Sm id. (Set of 16) Learn More -
Valve SpringsSKU: 68435-16Valve Springs 5.7L, 6.1L Chrysler Hemi Ovate Beehive 1.210 LE dia. .630 Sm id. (Set of 16) Learn More -
Valve SpringsSKU: 68444-16Valve Springs Ovate Beehive 1.061 LE dia. .636 Sm id. (Set of 16) Learn More -
Valve SpringsSKU: 68547-16Valve Springs Drag Race Triple 1.645 dia. .635 id. (Set of 16) Learn More -
Valve SpringsSKU: 68526-16Valve Springs Drag Race Dual 1.550 dia. .706 id. (Set of 16) Learn More -
Valve SpringsSKU: 68556-16Valve Springs Drag Race
Valve Springs Drag Race
Learn MoreO.D./I.D. OUTER 1.645/ 1.195 O.D./I.D. MID 1.186/.850 O.D./I.D. INNER .849/.634 PART NUMBER 68556 INSTALLED HGHT 2.000 RATE 829 TYPE Triple COLOR CODE None DAMPER No FREE LENGTH 2.415 WIRE DIAMETER .226/.174/.115 2.050 216 2.000 263 1.900 342 1.850 382 1.800 420 1.750 459 1.700 496 1.650 535 1.600 575 1.550 616 1.500 655 1.450 696 1.400 738 1.350 782 1.300 826 1.250 872 1.200 917 1.150 968 1.100 1029 Coil Bind 1.085 -
Valve SpringsSKU: 68548-16Valve Springs Drag Race Triple 1.645 dia. .635 id. (Set of 16) Learn More -
Valve SpringsSKU: 68694-16Valve Springs 1.609 Low-Stress Triple (Set of 16) Learn More