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Valves, Exhaust, Severe Duty, Stainless Steel, 1.880 in.Diameter, 0.311 in. Stem, 5.422 in. Length, Set of 8
Part Number: MAN-12815-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve, Intake, 2.325 in. Diameter, Stainless Steel, 0.250 in. Over Installed Length, Chevy, Big Block, Each
Part Number: MAN-12838-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve, Intake, Titanium, 2.300 in. Head Diameter, 5.344 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12842-8
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, 1.880 in. Head Diameter, 5.422 in. Length, Chevy, Big Block, Each
Part Number: MAN-12843-8
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. Head Diameter, 5.344 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12850H-1
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, 2.300 in. Head Diameter, 5.494 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12854-1
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, 2.300 in. Head Diameter, 5.494 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12854-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valves, Intake, Severe Duty, Stainless Steel, 2.250 in.Diameter, 0.311 in. Stem, 5.494 in. Length, Set of 8
Part Number: MAN-12856-8
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, 2.300 in. Head Diameter, 5.594 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12878-1
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, 2.300 in. Head Diameter, 5.594 in. Length, Chevy, Big Block, Set of 8
Part Number: MAN-12878-8
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, 1.930 in. Diameter, .3133 in. Stem, 5.232 in. Length, LS 5.3L, Set of 8
Part Number: MAN-12358-1
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, 1.600 in. Head, 0.314 in. Stem, 5.050 in. Length, Chevy, Set of 8
Part Number: MAN-12337-8
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, 2.100 in. Head, 0.314 in. Stem, 5.030 in. Length, Chevy, Set of 8
Part Number: MAN-12338-8
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Dual, 1.580 in. Outside Diameter, 535 lbs./in. Rate, 1.170 in. Coil Bind Height, Each
Part Number: MAN-221443P-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring, Dual, 1.610 in. Outside Diameter, 546 lbs./in. Rate, 1.220 in. Coil Bind Height, Each
Part Number: MAN-221444-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Dual, 1.610 in. Outside Diameter, 546 lbs./in. Rate, 1.220 in. Coil Bind Height, Set of 16
Part Number: MAN-221444P-16
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring, Nex Tek, Dual, 1.400 in. Outside Diameter, 575 lbs/in., Each
Part Number: MAN-221446SF-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring, Triple, 1.677 in. Outside Diameter, 720 lbs./in. Rate, 1.142 in. Coil Bind Height, Each
Part Number: MAN-221449P-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Spring, Triple, 1.677 in. Outside Diameter, 770 lbs./in. Rate, 1.142 in. Coil Bind Height, Each
Part Number: MAN-221450-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Triple, 1.677 in. Outside Diameter, 770 lbs./in. Rate, 1.142 in. Coil Bind Height, Each
Part Number: MAN-221450P-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Triple, 1.677 in. Outside Diameter, 770 lbs./in. Rate, 1.142 in. Coil Bind Height, Set of 16
Part Number: MAN-221450P-16
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
SPRING-1454 POLISHED
Part Number: MAN-221454P-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Dual, 1.500 in. Outside Diameter, 800 lbs./in. Rate, 1.130 in. Coil Bind Height, Each
Part Number: MAN-221456-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Valve Springs, Dual, 1.500 in. Outside Diameter, 800 lbs./in. Rate, 1.130 in. Coil Bind Height, Set of 16
Part Number: MAN-221457-16
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, 7 Degree, 1.437 in. Outside Diameter, .720 in. Inside Diameter, Each
Part Number: MAN-23638-1
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
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