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Chrome Moly Steel Retainers suit LS1 Dual Valve Springs #4905 ISK185-ST
SKU: ISK185-STOriginal price $165.41Original price $165.41 - Original price $165.41Original price $165.41Current price $153.86$153.86 - $153.86Current price $153.86Out of stockChrome Moly Steel Retainers suit LS1 Dual Valve Springs #4905ISK185-STK185-STIsky 4130 Chrome Moly Light-Weight Steel Valve Spring Retainers are id...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.600" OD ISK9999RAD
250LBS @ 2.000" Seat Pressure, 770LBS @ 1.200" Open Pressure, 1.160" C
SKU: ISK9999RADOriginal price $992.42Original price $992.42 - Original price $992.42Original price $992.42Current price $923.19$923.19 - $923.19Current price $923.19Only 1 left!Rad-9000 Dual Valve Springs with Damper (Set) 1.600" OD250LBS @ 2.000" Seat Pressure, 770LBS @ 1.200" Open Pressure, 1.160" Coil BindISK9999RADK999...
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Endurance Plus Dual Valve Springs with Damper (16) 1.530" OD ISK8005-PLUS
140LBS @1.875" Seat Pressure, 400LBS @ 1.275" Open Pressure, 1.160" Co
SKU: ISK8005-PLUSOriginal price $835.98Original price $835.98 - Original price $835.98Original price $835.98Current price $777.65$777.65 - $777.65Current price $777.65Only 1 left!Endurance Plus Dual Valve Springs with Damper (16) 1.530" OD140LBS @1.875" Seat Pressure, 400LBS @ 1.275" Open Pressure, 1.160" Coil BindISK8005-PL...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.570" OD ISK9995RAD
250LBS @ 2.030" Seat Pressure, 625LBS @ 1.300" Open Pressure, 1.200" C
SKU: ISK9995RADOriginal price $1,274.08Original price $1,274.08 - Original price $1,274.08Original price $1,274.08Current price $1,185.13$1,185.13 - $1,185.13Current price $1,185.13Only 1 left!Rad-9000 Dual Valve Springs with Damper (Set) 1.570" OD250LBS @ 2.030" Seat Pressure, 625LBS @ 1.300" Open Pressure, 1.200" Coil BindISK9995RADK999...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.600" OD ISK9998RAD
250LBS @ 2.050" Seat Pressure, 735LBS @ 1.250" Open Pressure, 1.160" C
SKU: ISK9998RADOriginal price $1,169.94Original price $1,169.94 - Original price $1,169.94Original price $1,169.94Current price $1,088.29$1,088.29 - $1,088.29Current price $1,088.29Out of stockRad-9000 Dual Valve Springs with Damper (Set) 1.600" OD250LBS @ 2.050" Seat Pressure, 735LBS @ 1.250" Open Pressure, 1.160" Coil BindISK9998RADK999...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.560" OD ISK9985RAD
245LBS @ 2.000" Seat Pressure, 600LBS @ 1.300" Open Pressure, 1.200" C
SKU: ISK9985RADOriginal price $1,278.22Original price $1,278.22 - Original price $1,278.22Original price $1,278.22Current price $1,188.98$1,188.98 - $1,188.98Current price $1,188.98Only 1 left!Rad-9000 Dual Valve Springs with Damper (Set) 1.560" OD245LBS @ 2.000" Seat Pressure, 600LBS @ 1.300" Open Pressure, 1.200" Coil BindISK9985RADK998...
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Tool Room Racing Dual Valve Springs with Damper (Set) 1.560" OD ISK9985
245LBS @ 2.000" Seat Pressure, 600LBS @ 1.300" Open Pressure, 1.200" C
SKU: ISK9985Original price $1,079.44Original price $1,079.44 - Original price $1,079.44Original price $1,079.44Current price $1,004.11$1,004.11 - $1,004.11Current price $1,004.11Only 2 left!Tool Room Racing Dual Valve Springs with Damper (Set) 1.560" OD245LBS @ 2.000" Seat Pressure, 600LBS @ 1.300" Open Pressure, 1.200" Coil BindISK998...
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Tool Room Racing Dual Valve Springs with Damper (Set) 1.560" OD ISK9965
245LBS @ 1.950" Seat Pressure, 585LBS @ 1.270" Open Pressure, 1.170" C
SKU: ISK9965Original price $1,014.32Original price $1,014.32 - Original price $1,014.32Original price $1,014.32Current price $943.54$943.54 - $943.54Current price $943.54Only 1 left!Tool Room Racing Dual Valve Springs with Damper (Set) 1.560" OD245LBS @ 1.950" Seat Pressure, 585LBS @ 1.270" Open Pressure, 1.170" Coil BindISK996...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.625" OD ISK9955RAD
265LBS @ 2.120" Seat Pressure, 700LBS @ 1.320" Open Pressure, 1.240" C
SKU: ISK9955RADOriginal price $1,337.61Original price $1,337.61 - Original price $1,337.61Original price $1,337.61Current price $1,244.24$1,244.24 - $1,244.24Current price $1,244.24Only 1 left!Rad-9000 Dual Valve Springs with Damper (Set) 1.625" OD265LBS @ 2.120" Seat Pressure, 700LBS @ 1.320" Open Pressure, 1.240" Coil BindISK9955RADK995...
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Rad-9000 Dual Valve Springs with Damper (Set) 1.560" OD ISK9975-RAD
245LBS @ 1.970" Seat Pressure, 590LBS @ 1.290" Open Pressure, 1.190" C
SKU: ISK9975-RADOriginal price $917.82Original price $917.82 - Original price $917.82Original price $917.82Current price $853.78$853.78 - $853.78Current price $853.78Out of stockRad-9000 Dual Valve Springs with Damper (Set) 1.560" OD245LBS @ 1.970" Seat Pressure, 590LBS @ 1.290" Open Pressure, 1.190" Coil BindISK9975-RADK99...
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Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD ISK9385-PLUS
245LBS @ 2.000" Seat Pressure, 600LBS @ 1.280" Open Pressure, 1.180" C
SKU: ISK9385-PLUSOriginal price $802.86Original price $802.86 - Original price $802.86Original price $802.86Current price $746.87$746.87 - $746.87Current price $746.87Only 2 left!Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD245LBS @ 2.000" Seat Pressure, 600LBS @ 1.280" Open Pressure, 1.180" Coil BindISK9385-P...
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"SP" Series Dual Valve Springs with Damper (16) 1.550" OD ISK9365-SP
225LBS @ 1.950" Seat Pressure, 550LBS @ 1.270" Open Pressure, 1.170" C
SKU: ISK9365-SPOriginal price $771.37Original price $771.37 - Original price $771.37Original price $771.37Current price $717.58$717.58 - $717.58Current price $717.58Only 1 left!"SP" Series Dual Valve Springs with Damper (16) 1.550" OD225LBS @ 1.950" Seat Pressure, 550LBS @ 1.270" Open Pressure, 1.170" Coil BindISK9365-SPK9...
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Dual Valve Springs with Damper (Set) 1.550" OD ISK9365
215LBS @ 1.950" Seat Pressure, 550LBS @ 1.270" Open Pressure, 1.170" C
SKU: ISK9365Original price $576.75Original price $576.75 - Original price $576.75Original price $576.75Current price $536.56$536.56 - $536.56Current price $536.56Only 1 left!Dual Valve Springs with Damper (Set) 1.550" OD215LBS @ 1.950" Seat Pressure, 550LBS @ 1.270" Open Pressure, 1.170" Coil BindISK9365K9365We make val...
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Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD ISK9375-PLUS
230LBS @1.970" Seat Pressure, 560LBS @ 1.290" Open Pressure, 1.190" Co
SKU: ISK9375-PLUSOriginal price $860.41Original price $860.41 - Original price $860.41Original price $860.41Current price $800.40$800.40 - $800.40Current price $800.40Only 1 left!Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD230LBS @1.970" Seat Pressure, 560LBS @ 1.290" Open Pressure, 1.190" Coil BindISK9375-PL...
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Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD ISK9365-PLUS
235LBS @1.950" Seat Pressure, 560LBS @ 1.270" Open Pressure, 1.170" Co
SKU: ISK9365-PLUSOriginal price $778.39Original price $778.39 - Original price $778.39Original price $778.39Current price $724.11$724.11 - $724.11Current price $724.11Only 3 left!Endurance Plus Dual Valve Springs with Damper (16) 1.560" OD235LBS @1.950" Seat Pressure, 560LBS @ 1.270" Open Pressure, 1.170" Coil BindISK9365-PL...
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Endurance Plus Dual Valve Springs with Damper (16) 1.530" OD ISK8205-PLUS
150LBS @1.900" Seat Pressure, 420LBS @ 1.300" Open Pressure, 1.120" Co
SKU: ISK8205-PLUSOriginal price $824.55Original price $824.55 - Original price $824.55Original price $824.55Current price $767.02$767.02 - $767.02Current price $767.02Only 3 left!Endurance Plus Dual Valve Springs with Damper (16) 1.530" OD150LBS @1.900" Seat Pressure, 420LBS @ 1.300" Open Pressure, 1.120" Coil BindISK8205-PL...
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Dual Valve Springs with Damper (Set) 1.530" OD ISK9005
185LBS @ 1.875" Seat Pressure, 465LBS @ 1.225" Open Pressure, 1.160" C
SKU: ISK9005Original price $535.21Original price $535.21 - Original price $535.21Original price $535.21Current price $497.93$497.93 - $497.93Current price $497.93in stockDual Valve Springs with Damper (Set) 1.530" OD185LBS @ 1.875" Seat Pressure, 465LBS @ 1.225" Open Pressure, 1.160" Coil BindISK9005K9005We make val...
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Endurance Plus Dual Valve Springs with Damper (16) 1.550" OD ISK9315-PLUS
220LBS @1.900" Seat Pressure, 530LBS @ 1.240" Open Pressure, 1.130" Co
SKU: ISK9315-PLUSOriginal price $795.39Original price $795.39 - Original price $795.39Original price $795.39Current price $739.91$739.91 - $739.91Current price $739.91Only 2 left!Endurance Plus Dual Valve Springs with Damper (16) 1.550" OD220LBS @1.900" Seat Pressure, 530LBS @ 1.240" Open Pressure, 1.130" Coil BindISK9315-PL...
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"SP" Series Dual Valve Springs with Damper (16) 1.530" OD ISK8205-SP
150LBS @ 1.900" Seat Pressure, 440LBS @ 1.300" Open Pressure, 1.150" C
SKU: ISK8205-SPOriginal price $567.78Original price $567.78 - Original price $567.78Original price $567.78Current price $528.20$528.20 - $528.20Current price $528.20Out of stock"SP" Series Dual Valve Springs with Damper (16) 1.530" OD150LBS @ 1.900" Seat Pressure, 440LBS @ 1.300" Open Pressure, 1.150" Coil BindISK8205-SPK8...
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"SP" Series Dual Valve Springs with Damper (16) 1.530" OD ISK8005SP
150LBS @ 1.875" Seat Pressure, 435LBS @ 1.225" Open Pressure, 1.160" C
SKU: ISK8005SPOriginal price $541.79Original price $541.79 - Original price $541.79Original price $541.79Current price $504.03$504.03 - $504.03Current price $504.03Only 3 left!"SP" Series Dual Valve Springs with Damper (16) 1.530" OD 150LBS @ 1.875" Seat Pressure, 435LBS @ 1.225" Open Pressure, 1.160" Coil Bind ISK8005SP ...
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Camshaft & Complete Kit suit Ford Mercury 8-BA Flathead 1949-53 ISK804000
F85-02 Lifters, 4005 Dual Valve Springs, #404 Spring Shims, 87F Steel
SKU: ISK804000Original price $1,881.05Original price $1,881.05 - Original price $1,881.05Original price $1,881.05Current price $1,749.90$1,749.90 - $1,749.90Current price $1,749.90Out of stockCamshaft & Complete Kit suit Ford Mercury 8-BA Flathead 1949-53F85-02 Lifters, 4005 Dual Valve Springs, #404 Spring Shims, 87F Steel RetainersI...
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Dual Valve Springs with Damper (Set) 1.530" OD ISK8205
140LBS @ 1.900" Seat Pressure, 430LBS @ 1.250" Open Pressure, 1.170" C
SKU: ISK8205Original price $540.56Original price $540.56 - Original price $540.56Original price $540.56Current price $502.89$502.89 - $502.89Current price $502.89Only 2 left!Dual Valve Springs with Damper (Set) 1.530" OD140LBS @ 1.900" Seat Pressure, 430LBS @ 1.250" Open Pressure, 1.170" Coil BindISK8205K8205We make val...
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Dual Valve Springs with Damper (Set) 1.530" OD ISK8005A
135LBS @ 1.875" Seat Pressure, 395LBS @ 1.225" Open Pressure, 1.160" C
SKU: ISK8005AOriginal price $473.03Original price $473.03 - Original price $473.03Original price $473.03Current price $440.08$440.08 - $440.08Current price $440.08in stockDual Valve Springs with Damper (Set) 1.530" OD135LBS @ 1.875" Seat Pressure, 395LBS @ 1.225" Open Pressure, 1.160" Coil BindISK8005AK8005AWe make v...
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"SP" Series Dual Valve Springs with Damper (16) 1.440" OD ISK6105-SP
145LBS @ 1.800" Seat Pressure, 365LBS @ 1.175" Open Pressure, 1.060" C
SKU: ISK6105-SPOriginal price $672.22Original price $672.22 - Original price $672.22Original price $672.22Current price $625.32$625.32 - $625.32Current price $625.32Only 1 left!"SP" Series Dual Valve Springs with Damper (16) 1.440" OD145LBS @ 1.800" Seat Pressure, 365LBS @ 1.175" Open Pressure, 1.060" Coil BindISK6105-SPK6...
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