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    Machined machined blocks machined block Machined sb Machined sbf b
    1. CCA-916-16 PART NUMBER
      916-16
      Comp Cams 916-16 Dual Valve Springs
      $193.95
      Comp Cams
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      Dual Spring, 1.550" OD Outer, 1.166" ID Outer, .896" ID Inner, Seat Pressure 200 @ 1.700, Open Pressure 474 @ 1.000, Coil Bind .900", Set of 16 Learn More
    2. PAC-1205X-16 PART NUMBER
      PAC Circle Track Endurance Valve Springs PAC-1200
      PAC RPM Series Valve Springs PAC-1205X
      $420.26
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      Dual Spring, 1.304" Outer Diameter, 0.950" ID outer, .694" Inner Diameter, Seat Pressure 155 @ 1.800, Open Pressure 410 @ 1.150, Coil Bind 1.000", Set of 16 Springs

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    3. PAC-1905-16 PART NUMBER
      PAC Circle Track Endurance Valve Springs PAC-1200
      PAC Hot Rod Series Valve Springs PAC-1905
      $250.15
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      Dual Spring, 1.304" Outer Diameter, 0.950" ID outer, 0.694" Inner Diameter, Seat Pressure 160 @ 1.800, Open Pressure 425 @ 1.125, Coil Bind 1.020", Set of 16 Springs

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    4. PAC-KS33 PART NUMBER
      PAC RPM Series Dual Valve Spring Kit PAC-KS33
      PAC RPM Series Dual Valve Spring Kit PAC-KS33
      $961.70
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      .700" Max Lift, 1205X Dual Valve Springs, R335 Tool Steel Retainers, L8113 Valve Locks, Valve Seals, S129 Spring Seats

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    5. PAC-KS12 PART NUMBER
      PAC Hot Rod Series Dual Valve Spring Kit PAC-KS12
      PAC Hot Rod Series Dual Valve Spring Kit PAC-KS12
      $500.32
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      .650" Max Lift, 1905 Dual Valve Springs, R335 Tool Steel Retainers, OE Valve Locks, Valve Seals, S129 Spring Seats

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    6. PAC-KS16 PART NUMBER
      PAC Hot Rod Series Dual Valve Spring Kit PAC-KS16
      PAC Hot Rod Series Dual Valve Spring Kit PAC-KS16
      $537.00
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      .650" Max Lift, 1905 Dual Valve Springs, R335 Tool Steel Retainers, L8113 Valve Locks, Valve Seals, S129 Spring Seats

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    7. PAC-KS24 PART NUMBER
      PAC RPM Series Dual Valve Spring Kit PAC-KS24
      PAC RPM Series Dual Valve Spring Kit PAC-KS24
      $732.67
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      .700" Max Lift, 1205X Dual Valve Springs, R335 Tool Steel Retainers, L8113 Valve Locks, Valve Seals, S129 Spring Seats

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    8. PAC-KS26 PART NUMBER
      PAC RPM Series Dual Valve Spring Kit PAC-KS26
      PAC RPM Series Dual Valve Spring Kit PAC-KS26
      $961.70
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      .700" Max Lift, 1205X Dual Valve Springs, R435 Tool Steel Retainers, L8113 Valve Locks, Valve Seals, S129 Spring Seats

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    9. PAC-KS07 PART NUMBER
      PAC RPM Series Dual Valve Spring Kit PAC-KS07
      PAC RPM Series Dual Valve Spring Kit PAC-KS07
      $777.14
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      .650" Max Lift, 1905 Dual Valve Springs, R435 Tool Steel Retainers, L8113 Valve Locks,  S135 Spring Seats, Valve Seals 

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    10. PAC-KS17 PART NUMBER
      PAC RPM Series Dual Valve Spring Kit PAC-KS17
      PAC RPM Series Dual Valve Spring Kit PAC-KS17
      $736.01
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      .650" Max Lift, 1905 Dual Valve Springs, R435 Tool Steel Retainers, L8113 Valve Locks, S129 Spring Seats, Valve Seals 

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    Products (1-10 of 11)

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    Engines > Complete Engines > Crate Engines > Chevy 350 Crate Engine
    CNC-Motorsports offers Chevy 350 crate engines designed and custom built to meet your needs. We take...
    Engines > Short Blocks
    CNC-Motorsports short blocks are in high demand among racers of all types worldwide. We use the bes...
    Engines > Short Blocks > BB Chevy Short Blocks
    CNC-Motorsports offers the best selection in BBC 427-454-496-540-572-598-632 short blocks. Our short...
    Engines > Short Blocks > BB Chevy Short Blocks > Chevy 427 Short Deck
    CNC-Motorsports offers the best selection in BBC 427 short blocks. Our short blocks are in high dema...
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