1987 Manley Engines & Components

Piston, Forged, Flat, 4.030 in. Bore, Chevy, Each

Part Number: MAN-590530R-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

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: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Intake, Race Series, Stainless Steel, 2.100 in. Diameter, 0.342 in. Stem, 5.240 in. Length, Set of 8

Part Number: MAN-11594-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

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: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valves, Intake, Titanium, 2.150 in. Diameter, .342 in. Stem, 5.240 in. Length, Universal, Set of 8

Part Number: MAN-11430T-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: MAN-590540-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Intake, Titanium, 2.220 in. Diameter, .342 in. Stem, 5.540 in. Length, Universal, Each

Part Number: MAN-11464T-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Intake, Titanium, 2.080 in. Diameter, .342 in. Stem, 5.240 in. Length, Universal, Each

Part Number: MAN-11404T-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Pistons, Forged, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: MAN-590530-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Intake, Severe Duty, Stainless Steel, 2.300 in. Diameter, 0.342 in. Stem, 5.725 in. Length, Each

Part Number: MAN-11588-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Stainless Steel, 1.590 in. Diameter, .3415 in. Stem, 4.800 in. Length, Each

Part Number: MAN-11793-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Severe Duty, Stainless Steel, 1.940 in. Diameter, 0.3715 in. Stem, 5.464 in. Length, Set of 8

Part Number: MAN-11533-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Intake, Stainless Steel, 1.720 in. Diameter, .342 in. Stem, 5.011 in. Length, Universal, Each

Part Number: MAN-11540-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Severe Duty, Stainless Steel, 2.250 in. Diameter, 0.342 in. Stem, 5.725 in. Length, Each

Part Number: MAN-11586-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Pistons, Forged, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: MAN-590230-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Exhaust, Severe Duty, Stainless Steel, 1.940 in. Diameter, 0.3715 in. Stem, 5.464 in. Length, Each

Part Number: MAN-11533-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Piston, Forged, Flat, 4.030 in. Bore, Chevy, Each

Part Number: MAN-591030R-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Pistons, Forged, Flat, Gas Ported, Chevy, Set of 8

Part Number: MAN-591530-8

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Exhaust, Extreme Duty, XH-432 Xtreme Alloy, 1.900 in. Diameter, 0.3415 in. Stem, 6.450 in. Length, Each

Part Number: MAN-11597-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Titanium, 2.125 in. Diameter, .342 in. Stem, 5.240 in. Length, Universal, Each

Part Number: MAN-11420T-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valve, Exhaust, Titanium, 1.600 in. Diameter, .342 in. Stem, 5.260 in. Length, Universal, Each

Part Number: MAN-11405T-1

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Valves, Intake, Titanium, 2.055 in. Diameter, .342 in. Stem, 5.040 in. Length, Each

Part Number: MAN-11474T-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order