Availability
Valve, Exhaust, Stainless Steel, 1.625 in. Diameter, .341 in. Stem, 5.036 in. Length, Chevy, Each
Part Number: MAN-11537-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.500 in. Diameter, .342 in. Stem, 4.911 in. Length, Universal, Each
Part Number: MAN-11567-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Guideplates, Raised, Steel, Black Oxide, 3/8 in. Pushrod Size, Chevy, Small Block, Set of 8
Part Number: MAN-42150-8
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Guideplates, 5/16, Flat Style, Steel, Black Oxide, Chevrolet SB, Set of 8
Part Number: MAN-42355-8
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 4.911 in. Length, Ford, Each
Part Number: MAN-11531-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Stainless Steel, 1.940 in. Diameter, .341 in. Stem, 4.911 in. Length, Ford, Each
Part Number: MAN-11532-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.770 in. Diameter, .342 in. Stem, 5.230 in. Length, Pontiac, Each
Part Number: MAN-11337-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Severe Duty, Stainless Steel, 1.880 in. Diameter, 0.342 in. Stem, 5.655 in. Length, Each
Part Number: MAN-11591-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve, Intake, NK-842 Stainless, 2.250 in. Diameter, .3415 in. Stem, 5.344 in. Length, Each
Part Number: MAN-11814-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valves, VALVE-S/D AFR 1.600 +.100
Part Number: MAN-12337-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Severe Duty, Stainless Steel, 1.937 in. Diameter, 0.342 in. Stem, 4.911 in. Length, Each
Part Number: MAN-11592-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valves, Exhaust, Stainless Steel, 1.940 in. Diameter, .3415 in. Stem, 5.140 in. Length, Chevy, Small Block, Each
Part Number: MAN-11748-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valves, Exhaust, XH-428 Stainless Steel, 1.600 in. Diameter, 0.342 in. Stem, 5.255 in. Length, Set of 8
Part Number: MAN-11703-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.125 in. Diameter, .342 in. Stem, 5.240 in. Length, Each
Part Number: MAN-11344-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, NK-842 Stainless, 2.190 in. Head Diameter, 5.344 in. Length, Chevy, Big Block, Each
Part Number: MAN-11894-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.121 in. Length, Chevy, Each
Part Number: MAN-11865-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.740 in. Diameter, .372 in. Stem, 4.908 in. Length, Mopar, Each
Part Number: MAN-11859-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 4.725 in. Length, 1.500 in. Diameter, 0.3415 in. Diameter Stem, Buick V6, Each
Part Number: MAN-11503-1
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.810 in. Diameter, .372 in. Stem, 4.908 in. Length, Mopar, Each
Part Number: MAN-11891-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.100 in. Diameter, .342 in. Stem, 5.440 in. Length, Each
Part Number: MAN-11336-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.080 in. Diameter, .341 in. Stem, 5.026 in. Length, Chevy, Each
Part Number: MAN-11844-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Exhaust, Stainless Steel, 1.60 in. Diameter, .311 in. Stem, 5.040 in. Length, Chevy, Each
Part Number: MAN-11305-1
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.080 in. Diameter, .342 in. Stem, 5.340 in. Length, Chevy, Each
Part Number: MAN-11324-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.020 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Each
Part Number: MAN-11566-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.065 in. Length, Chevy, Each
Part Number: MAN-11545-1
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.