Availability
1998 Manley Parts and Accessories
Valves, Exhaust, XH-432 Stainless Steel, 1.600 in. Diameter, .342 in. Stem, 5.015 in. Length, Set of 8
Part Number: MAN-11599-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, Exhaust, XH-428 Stainless, 1.625 in. Diameter, .3415 in. Stem, 5.165 in. Length, Set of 8
Part Number: MAN-11577-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Exhaust, Titanium, 1.900 in. Diameter, 0.3415 in. Stem, 5.540 in. Length, Set of 8
Part Number: MAN-11483-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, Intake, Titanium, 2.125 in. Diameter, .342 in. Stem, 5.240 in. Length, Universal, Set of 8
Part Number: MAN-11420T-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.250 in. Diameter, .372 in. Stem, 5.325 in. Length, Chevy, Each
Part Number: MAN-11524-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, Intake, Titanium, 1.600 in. Diameter, .342 in. Stem, 5.260 in. Length, Universal, Set of 8
Part Number: MAN-11431T-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Exhaust, Titanium, 1.625 in. Diameter, .342 in. Stem, 5.460 in. Length, Universal, Each
Part Number: MAN-11419T-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Exhaust, Race Series, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 5.221 in. Length, Each
Part Number: MAN-11579-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, VALVE-S/D 1.720,+.200
Part Number: MAN-11716-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Intake, 2.190 in. Head Diameter, 9.42mm Stem Diameter, 5.244 in. Overall Length, Chevy, Set of 8
Part Number: MAN-11718-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Intake, 2.190 in. Head Diameter, 9.42mm Stem Diameter, 5.244 in. Overall Length, Chevy, Each
Part Number: MAN-11718-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Piston, Forged, Flat, 4.035 in. Bore, Chevy, Each
Part Number: MAN-590035R-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Exhaust, Extreme Duty, XH-432 Xtreme Alloy, 1.90 in Diameter, 0.3415 in. Stem, 6.45 in Length, Set of 8
Part Number: MAN-11597-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, Intake, NK-844 Stainless, 2.065 in. Diameter, .3720 in. Stem, 5.218 in. Length, Set of 8
Part Number: MAN-11836-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valves, Exhaust, Stainless Steel, 1.625 in. Diameter, .3415 in. Stem, 5.165 in. Length, Chevy, Small Black, Each
Part Number: MAN-11799-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Pistons, Forged, Flat, 3.582 in. Bore, Ford, Modular V8, Each
Part Number: MAN-594030C-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 7 Degree Lock, 1.311 in. Spring O.D., Kit
Part Number: MAN-26382038KS
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Pistons, Forged, Flat, 4.060 in. Bore, Chevy, Set of 8
Part Number: MAN-590660-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Pistons, Forged, Flat, Gas Ported, Chevy, Set of 8
Part Number: MAN-591530-8
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Valve, Intake, Stainless Steel, 2.020 in. Diameter, .341 in. Stem, 5.011 in. Length, Chevy, Each
Part Number: MAN-11882-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
VALVE-S/D 2.300,+.200
Part Number: MAN-12784-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Piston, Forged, Flat, 4.035 in. Bore, Chevy, Each
Part Number: MAN-591335L-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Piston, Forged, Flat, 4.035 in. Bore, Chevy, Each
Part Number: MAN-590135R-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Piston, Forged, Flat, 4.035 in. Bore, Chevy, Each
Part Number: MAN-590635L-1
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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