1981 Manley Engines & Components

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: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Severe Duty, Stainless Steel, 2.325 in. Diameter, 0.3415 in. Stem, 6.59 in. Length, Each

Part Number: MAN-11580-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Severe Duty, Stainless Steel, 1.900 in. Diameter, 0.3415 in. Stem, 6.380 in. Length, Each

Part Number: MAN-11581-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Stainless Steel, 1.940 in. Diameter, .341 in. Stem, 6.400 in. Length, Chevy, Each

Part Number: MAN-11583-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Severe Duty, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 4.936 in. Length, Each

Part Number: MAN-11585-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• 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: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Severe Duty, Stainless Steel, 2.400 in. Diameter, 0.342 in. Stem, 5.725 in. Length, Each

Part Number: MAN-11590-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Race Series, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 5.021 in. Length, Each

Part Number: MAN-11569-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 4.730 in. Length, 1.775 in. Diameter, 0.3415 in. Diameter Stem, Buick V6, Each

Part Number: MAN-11504-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Severe Duty, Stainless Steel, 2.125 in. Diameter, 0.3415 in. Stem, 5.440 in. Length, Each

Part Number: MAN-11508-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, NK-844 Stainless Steel, 2.100 in. Head Diameter, 5.440 in. Length, Chevy, Small Block, Each

Part Number: MAN-11510-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, NK-844 Stainless, 2.080 in. Head Diameter, 5.440 in. Length, Chevy, Small Block, Each

Part Number: MAN-11512-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.522 in. Length, Each

Part Number: MAN-11515-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.190 in. Diameter, .372 in. Stem, 5.218 in. Length, Chevy, Each

Part Number: MAN-11520-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.055 in. Diameter, .311 in. Stem, 5.010 in. Length, Chevy, Each

Part Number: MAN-11234-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

VALVE-R/M 1.600, +.100, .3136 STEM

Part Number: MAN-12303-1

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.165 in. Length, Chevy, Each

Part Number: MAN-11555-1

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.250 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Each

Part Number: MAN-11526-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 31, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, 1.900 in. Head Diameter, 8.68mm Stem Diameter, 5.522 in. Overall Length, Chevy, Each

Part Number: MAN-11769-1

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 4.730 in. Length, 1.710 in. Diameter, 0.3415 in. Diameter Stem, Buick V6, Each

Part Number: MAN-11502-1

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

• Drop Ship
• Special Order

Valve, Intake, NK-844 Stainless, 2.300 in. Diameter, .3720 in. Stem, 5.325 in. Length, Each

Part Number: MAN-11530-1

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

• Drop Ship
• Special Order