Availability
VALVE SPRING
Part Number: ISK-9901A
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Valve Springs, PSI Sportsman Drag Race Valve Spring
Part Number: ISK-425R
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Valve Springs, Dual, 1.560 in. Outside Diameter, 500 lbs./in. Rate, 1.180 in. Coil Bind Height, Set of 16
Part Number: ISK-9385PLUS
Estimated Ship Date: Dec 16, 2025 if ordered today
Estimated Ship Date: Dec 16, 2025 if ordered today
Lifters, Mechanical Flat Tappet, Mopar, Set of 16
Part Number: ISK-3102-H
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
VALVE SPRINGS
Part Number: ISK-DR1254RML
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Lifter Bushing, 1.002 in. O.D., 0.842 in. I.D., 1.700 in. Length, Bronze, Universal, Set of 16
Part Number: ISK-LB842
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Valve Spring Locators, Inside, Steel, .045 in. Thick, 1.520 in. O.D., .570 in. I.D., .720 in. Spring I.D., Set
Part Number: ISK-700-VSL
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Valve Spring Retainers, Titanium, 10 Degree, 1.195 in. Outside Diameter, .640 in. Inside Diameter, Set of 16
Part Number: ISK-980-TI-10
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Valve Spring Retainers, Steel, 7 Degree, 1.530 in. Outside Diameter, .725 in. Inside Diameter, Set of 16
Part Number: ISK-4107ST
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
VALVE SPRINGS
Part Number: ISK-937585PLUS
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
LIFTER PAIR
Part Number: ISK-S0036
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Valve Springs, Dual, 1.570 in. o.d., 1.200 in. Coil Bind Height, 0.800 in. Maximum Lift, Set of 16
Part Number: ISK-9989-RAD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Valve Spring Retainers, Steel, 7 Degree, 1.530 in. Outside Diameter, .730 in. Inside Diameter, Set of 16
Part Number: ISK-3607-ST
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Valve Springs, Dual, 1.530 in. Outside Diameter, 430 lbs./in. Rate, 1.160 in. Coil Bind Height, Set of 16
Part Number: ISK-9005
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Valve Spring Retainers, Titanium, 7 Degree, 1.550 in. Outside Diameter, .720 in. Inside Diameter, Set of 16
Part Number: ISK-91-TI
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Valve Springs, Dual, 1.560 in. Outside Diameter, 500 lbs./in. Rate, 1.175 in. Coil Bind Height, Set of 16
Part Number: ISK-9915
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Valve Springs, Single, 1.540 in. Outside Diameter, 360 lbs./in. Rate, 1.130 in. Coil Bind Height, Set of 16
Part Number: ISK-3605-D
Not Yet Reviewed
Estimated Ship Date: Dec 2, 2025 if ordered today
Estimated Ship Date: Dec 2, 2025 if ordered today
Valve Locks, Machined, Chromoly, 7 Degree, 1-Groove, 3/8 in. Valve Stem, Set of 32
Part Number: ISK-VL3-8
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Valve Spring Retainer Keeper
Part Number: ISK-VL500
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Valve Springs, Dual, 1.430 in. Outside Diameter, 320 lbs./in. Rate, 0.980 in. Coil Bind Height, Set of 16
Part Number: ISK-5005
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Valve Spring Retainers, Steel, 7 Degree, 1.550 in. Outside Diameter, .735 in. Inside Diameter, Set of 16
Part Number: ISK-507STA
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Valve Springs, 0.925/1.240 in. Outside Diameter, 250 lbs./in. Rate, 0.960 in. Coil Bind Height, Set of 16
Part Number: ISK-4005
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Valve Springs, Single, 1.530 in. Outside Diameter, 330 lbs./in. Rate, 1.120 in. Coil Bind Height, Set of 16
Part Number: ISK-805-DO
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Valve Springs, Dual, 1.430 in. Outside Diameter, 370 lbs./in. Rate, 0.940 in. Coil Bind Height, Set of 16
Part Number: ISK-5105
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Valve Springs, Dual, 1.550 in. Outside Diameter, 460 lbs./in. Rate, 1.170 in. Coil Bind Height, Set of 16
Part Number: ISK-9365
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
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