Availability
Valve Locks, LocCap, Machined, Steel, 10 Degree, 1-Groove, 0.372 in. Valve Stem, Set of 16
Part Number: MAN-13495-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.374 in. Length, Chevy, Set of 8
Part Number: MAN-11831-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.165 in. Length, Chevy, Set of 8
Part Number: MAN-11751-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Exhaust, XH-428 Stainless, 1.625 in. Diameter, .3415 in. Stem, 5.565 in. Length, Set of 8
Part Number: MAN-11763-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.250 in. Diameter, .341 in. Stem, 5.344 in. Length, Chevy, Each
Part Number: MAN-11850-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valve, Intake, Stainless Steel, 2.250 in. Diameter, .341 in. Stem, 5.494 in. Length, Chevy, Each
Part Number: MAN-11856-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Lash Caps, Steel, 5/16 in. Valve Stem, .080 in. Thick, Set of 8
Part Number: MAN-42300-8
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valve Spring, Dual, 1.640 in. Outside Diameter, 647 lbs./in. Rate, 1.070 in. Coil Bind Height, Each
Part Number: MAN-221424-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valve Spring, Nex Tek, Dual, 1.335 in. Outside Diameter, 780 lbs/in., Each
Part Number: MAN-221422-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Wear Caps, Valve Stem, .3715 in. Stem Diameter, .080 in. Thick, Standard Type, Set of 16
Part Number: MAN-42108-16
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valve, Intake, NK-844 Stainless, 2.250 in. Diameter, .3085 in. Stem, 5.424 in. Length, Each
Part Number: MAN-11904-1
Not Yet Reviewed
Estimated Ship Date: Jan 20, 2026 if ordered today
Estimated Ship Date: Jan 20, 2026 if ordered today
Valve Springs, NexTek, Dual, 1.522 in. O.D., 948 lbs./in. Rate, 1.255 in. Coil Bind Height, Set of 16
Part Number: MAN-221460-16
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
Valves, Exhaust, XH-428 Stainless, 1.610 in. Head Diameter, 5.230 in. Length, Chevy, 7.0L LS, Set of 8
Part Number: MAN-11679-1
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
Valves, Intake, NK-844, 2.350 in. Diameter, 0.342 in. Stem, 5.610 in. Length, Chevy, Set of 8
Part Number: MAN-11880-8
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
Valve Spring, Nex Tek, Dual, 1.335 in. Outside Diameter, 780 lbs/in., Set of 16
Part Number: MAN-221422-16
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
Valve Spring, Dual, 1.550 in. Outside Diameter, 614 lbs./in. Rate, 1.080 in. Coil Bind Height, Each
Part Number: MAN-22440-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring Retainers, Titanium, 7 Degree, 1.500 in. Outside Diameter, .785 in. Inside Diameter, Set of 16
Part Number: MAN-23700L-16
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring Retainers, Titanium, 10 Degree, 1.550 in. Outside Diameter, .705 in. Inside Diameter, Set of 16
Part Number: MAN-23657-16
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring Retainer, Titanium, 10 Degree, 1.550 in. Outside Diameter, .710 in. Inside Diameter, Each
Part Number: MAN-23660-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring Retainers, Titanium, 10 Degree, 1.560 in. Outside Diameter, .805 in. Inside Diameter, Set of 16
Part Number: MAN-23643-16
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.900 in. Diameter, .342 in. Stem, 5.422 in. Length, Set of 8
Part Number: MAN-11745-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Intake, Stainless Steel, 2.080 in. Diameter, .341 in. Stem, 5.026 in. Length, Chevy, Set of 8
Part Number: MAN-11844-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .371 in. Stem, 4.970 in. Length, Mopar, Set of 8
Part Number: MAN-11781-8
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring Retainers, Titanium, 10 Degree, 1.625 in. Outside Diameter, .640 in. Inside Diameter, Set of 16
Part Number: MAN-23662-16
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valves, Intake, XH-428 Stainless Steel, 2.165 in. Diameter, .313 in. Stem, 4.900 in. Length, Chevy, Set of 8
Part Number: MAN-11686H-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
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