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Valve Train

Crower has over 8000 listed high performance engine parts available for race, street, marine, diesel, truck, motorcycle, offroad
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Items 71-80 of 86

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  2. Valve Springs
    Valve Springs
    SKU: 68556-16

    Valve Springs Drag Race

    Valve Springs Drag Race 

    O.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

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  6. Valve Springs 1.355 Single 604 Crate Motor Cheater
    Valve Springs 1.355 Single 604 Crate Motor Cheater
    SKU: 68135-16

    Valve Springs 1.355 (Set of 16)

    • Single 604 Crate Motor Cheater Single Spring
    • Outside Diameter 1.355
    • Outer Spring ID 0.910
    • Install Height1.750
    • Load at Installed Height 125lbs
    • Spring Open Height 1.250
    • Spring Open Load 315
    • Recommended Valve Lift 0.550
    • Spring Rate (lbs/in) 380
    • Coil Bind (max) 1.180
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  7. Valve Springs Valve Springs  0.630 in. ID – 1.274 in. OD – 0.750 in. Max Valve Lift (Set of 16) #PAC-1238X
    Valve Springs Valve Springs  0.630 in. ID – 1.274 in. OD – 0.750 in. Max Valve Lift (Set of 16) #PAC-1238X
    SKU: 68437-16

    Valve 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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