Valves - 8.66mm Exhaust Valve Stem Diameter (mm) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Milodon Megaflow Competition Valves 45136-8

Valves, Exhaust, Race, Stainless Steel, 1.88 in. Dia., +.100 Long, Big Chevy, 396, 427, 454, 502, Set of 8

Part Number: MIL-45136-8

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Manley Race Series Stainless Steel Valves 11545-1

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: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Edelbrock Stainless Steel Valves 9782

Valves, Exhaust, Stainless Steel, 1.660 in. Diameter, .341 in. Stem, Pontiac V8, Set of 8

Part Number: EDL-9782

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Manley Race Series Stainless Steel Valves 11877-1

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.065 in. Length, Chevy, Each

Part Number: MAN-11877-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Severe Duty Series Stainless Steel Valves 11543-1

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Each

Part Number: MAN-11543-1

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Summit Racing™ Race Valves for Chevrolet SUM-V8010-1

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/27/2025

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Manley Race Series Stainless Steel Valves 11501-1

Valve, Exhaust, Stainless Steel, 1.560 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Each

Part Number: MAN-11501-1

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Manley Race Series Stainless Steel Valves 11875-1

Valve, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.042 in. Length, Ford, Each

Part Number: MAN-11875-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Milodon Street Stainless Valves 45615-8

Valves, Exhaust, Stainless Steel, 1.60 in. Diameter, Chevy, Small Block, 350, 383, 400, Set of 8

Part Number: MIL-45615-8

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

FLOTEK Stainless Steel Valves 226

Exhaust Valve , SBF 1.55 Exhaust Vale

Part Number: FLK-226

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Extreme Duty Series Stainless Steel Valves 11801-8

Valves, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.167 in. Length, Ford, Set of 8

Part Number: MAN-11801-8

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

Manley Severe Duty Series Stainless Steel Valves 11811-8

Valves, Exhaust, Stainless Steel, 1.900 in. Diameter, .341 in. Stem, 5.522 in. Length, Chevy, Set of 8

Part Number: MAN-11811-8

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Manley Severe Duty Series Stainless Steel Valves 11817-8

Valves, Exhaust, Stainless Steel, 1.900 in. Diameter, .341 in. Stem, 5.422 in. Length, Chevy, Set of 8

Part Number: MAN-11817-8

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Manley Severe Duty Series Stainless Steel Valves 11845-8

Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .341 in. Stem, 5.522 in. Length, Chevy, Set of 8

Part Number: MAN-11845-8

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Trick Flow® Replacement Valves TFS-54400213-1

Valve, Exhaust, Stainless Steel, 1.940 in. Diameter, .341 in. Stem, 5.700 in. Length, Big Ford, Each

Part Number: TFS-54400213-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Race Series Stainless Steel Valves 11889-1

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.080 in. Length, Ford, Each

Part Number: MAN-11889-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Trick Flow® Replacement Valves TFS-54400213

Valves, Exhaust, Stainless Steel, 1.940 in. Diameter, .341 in. Stem, 5.700 in. Length, Big Ford, Set of 8

Part Number: TFS-54400213

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Street Flo Valves 10721-1

Valve, Exhaust, Stainless Steel, 1.500 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Each

Part Number: MAN-10721-1

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Manley Severe Duty Series Stainless Steel Valves 11537-1

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: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Manley Race Series Stainless Steel Valves 11873-1

Valve, Exhaust, Stainless Steel, 1.710 in. Diameter, .341 in. Stem, 5.042 in. Length, Ford, Each

Part Number: MAN-11873-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Race Series Stainless Steel Valves 11531-1

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: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Milodon Megaflow Competition Valves 45485-8

Valves, Exhaust, Race, Stainless Steel, 1.77 in. Dia, Pontiac, 1968-70, 326, 350, 389, 400, 421, 455, Set of 8

Part Number: MIL-45485-8

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Melling Valves V0375

Valves, Exhaust, Steel, 1.510 in. Diameter, 5.093 in. Overall Length, Ford, Mercury, Each

Part Number: MEL-V0375

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Howards Cams Extreme Black Severe Application Valves 16001N

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 4.900 in. Length, Chevy, Each

Part Number: HRS-16001N

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Manley Race Series Stainless Steel Valves 11875-8

Valves, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.042 in. Length, Ford, Set of 8

Part Number: MAN-11875-8

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Milodon Megaflow Competition Valves 45475-8

Valves, Exhaust, Race, Stainless Steel, 1.66 in. Dia., Pontiac, 1971-79, 350, 400, 455, Set of 8

Part Number: MIL-45475-8

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today