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PAC-1236X-16-1 PART NUMBER
PAC RPM Series Valve Springs PAC-1236X$425.82Dual Spring, 1.310" Outer Diameter, 0.925" ID outer, .665" Inner Diameter, Seat Pressure 156 @ 1.800, Open Pressure 495 @ 1.100, Coil Bind 1.150", Set of 16 Springs
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PAC-1221X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1221X$240.14Dual Spring, 1.300" Outer Diameter, 0.895" ID outer, .650" Inner Diameter, Seat Pressure 160 @ 1.800, Open Pressure 424 @ 1.150, Coil Bind 1.080", Set of 16 Springs
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CRW-68878-16 PART NUMBER
Crower 68878-16 Performance Valve Springs, Single Spring, OD 1.050$374.85Single Spring, OD 1.050 ID .650 at top OD 1.290 ID .885 at bottom Spring Diameter, Lowest Pressure 132 @ 1.800, Highest Pressure 336 @ 1.150, .168/.200 Wire Diameter, Coil Bind 1.080", Set of 16 Learn More -
CRW-68340-16 PART NUMBER
Crower 68340-16 Performance Valve Springs, Dual Spring, OD 1.500$196.74Dual Spring, OD 1.500 ID 1.120 Spring Diameter, Lowest Pressure 100 @ 1.950, Highest Pressure 477 @ 1.150, .191/.141 Wire Diameter, Coil Bind .1.080", Set of 16 Learn More -
CRW-68548-16 PART NUMBER
Crower 68548-16 Performance Valve Springs, Triple Spring, OD 1.650$491.02Triple Spring, OD 1.650 ID 1.205 Spring Diameter, Lowest Pressure 279 @ 2.200, Highest Pressure 1006 @ 1.150, .215/.162/.119 Wire Diameter, Coil Bind .1.080", Set of 16 Learn More -
MAN-221427-16 PART NUMBER
Manley 221427-16 NexTek Performance Street/Strip Valve Springs$342.18Ford 4.6L/5.4L SOHC, Single Spring, Conical Ovate Wire, 1.020" Top 1.125" Bottom Outer Diameter, .642" Top .748" Bottom Inner Diameter, Seat Pressure 95 @ 1.680, Open Pressure 240 @ 1.130, Coil Bind 1.080", Set of 16 Learn More -
MAN-221437-16 PART NUMBER
Manley 221437-16 NexTek Performance Street/Strip Valve Springs$365.21Ford 4.6L/5.4L SOHC, Single Spring, Conical Ovate Wire, 1.030" Top 1.175" Bottom Outer Diameter, .642" Top .787" Bottom Inner Diameter, Seat Pressure 125 @ 1.680, Open Pressure 265 @ 1.130, Coil Bind 1.080", Set of 16 Learn More -
HOW-98445 PART NUMBER
Howards Universal 1.080 Hydraulic Roller Valve Springs 98445$137.95Dual Valve, w/o Damper, Hydraulic Roller / Mechanical Flat Tappet, 1.470" OD Outer, 1.080" ID Outer, 1.085" OD Inner, .800" ID Inner, 120@ 1.875 Closed Pressure, 425@ 1.110 Open Pressure, 399 Rate, .735" Max Lift, 1.080" Coil Bend, Set of 16 Learn MoreDROP SHIPThis product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier. -
HOW-98643 PART NUMBER
Howards Universal 1.080 Pro Alloy Mechanical Roller Valve Springs 98643$222.95Dual Spring, w/o Damper, 1.550" OD Outer, 1.126" ID Outer, 1.126" OD Inner, .815" ID Inner, 230@ 1.880 Closed Pressure, 550@ 1.250 Open Pressure, 508 Rate, .750 Max Lift, 1.080 Coil Bind, Set of 16 Learn MoreDROP SHIPThis product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier. -
HOW-98644 PART NUMBER
Howards Universal 1.080 Polished Pro Alloy Mechanical Roller Valve Springs 98644$264.95Dual Spring, w/o Damper, 1.550" OD Outer, 1.126" ID Outer, 1.126" OD Inner, .815" ID Inner, 230@ 1.880 Closed Pressure, 550@ 1.250 Open Pressure, 508 Rate, .750 Max Lift, 1.080 Coil Bind, Set of 16 Learn MoreDROP SHIPThis product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier.
Engines > Race Prepped Blocks > Dart Blocks
CNC-Motorsports is proud to offer fully machined race prep dart blocks. We offer the Dart SHP, Littl...
Engines > Race Prepped Blocks > LSX Blocks
CNC-Motorsports is proud to offer fully machined race prep GM LSX blocks. We offer LSX blocks full m...
Air & Fuel
CNC-Motorsports offers the best brands in aftermarket performance auto parts. We specialize in perfo...
Fasteners
CNC-Motorsports offers the best brands in aftermarket performance auto parts. Shop our full list or ...
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