CHEVROLET Chevy small block Gen III/IV (LS-based engines) Manley Parts and Accessories

Valve, Race, NK-842 Stainless Steel, Intake, 2.165 in. Diameter, 4.900 in. Length, Each

Part Number: MAN-11620-1

Not Yet Reviewed

Estimated Ship Date: Today

Valve Spring, Nex Tek, Dual, 1.335 in. Outside Diameter, 780 lbs/in., Each

Part Number: MAN-221422-1

Not Yet Reviewed

Estimated Ship Date: Today

Valve, Race, XH-426 Stainless Steel, Exhaust, 1.590 in. Diameter, 4.923 in. Length, Each

Part Number: MAN-11621-1

Not Yet Reviewed

Estimated Ship Date: Today

Valve, Intake, Stainless Steel, 2.000 in. Diameter, .313 in. Stem, 4.874 in. Length, Chevy, Each

Part Number: MAN-11360-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Valve, Exhaust, XH-426 Stainless Steel, 1.550 in. Diameter, .314 in. Stem, 4.923 in. Length, Each

Part Number: MAN-11361-1

Not Yet Reviewed

Estimated Ship Date: Today

Valves, Intake, Stainless Steel, 2.205 in. Diameter, 0.313 in. Stem, 5.200 in. Length, Chevy, Set of 8

Part Number: MAN-11688-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve Spring, Nex Tek, Dual, 1.324 in. Outside Diameter, 435 lbs/in., Each

Part Number: MAN-221421-1

Not Yet Reviewed

Estimated Ship Date: Today

Valve, Exhaust, Stainless Steel, 1.575 in. Diameter, .313 in. Stem, 4.923 in. Length, Chevy, Each

Part Number: MAN-11363-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve Springs, Single, 1.311 in. Outside Diameter, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: MAN-221438-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .314 in. Stem, 4.923 in. Length, Chevy, LS, Each

Part Number: MAN-11365-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.020 in. Diameter, .313 in. Stem, 4.874 in. Length, Chevy, Each

Part Number: MAN-11362-1

Not Yet Reviewed

Estimated Ship Date: Today

Valve, Race, XH-426 Stainless Steel, Exhaust, 1.590 in. Diameter, 4.923 in. Length, Set of 8

Part Number: MAN-11661-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.080 in. Diameter, .313 in. Stem, 4.874 in. Length, Chevy, Each

Part Number: MAN-11398-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.100 in. Diameter, .313 in. Stem, 4.874 in. Length, Each

Part Number: MAN-11350-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

SINGLE VALVE SPRING

Part Number: MAN-221435-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Severe Duty, XH-426 Stainless Steel, Exhaust, 1.600 in. Diameter, 4.923 in. Length, Each

Part Number: MAN-11677-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valves, Intake, XH-428 Stainless, 2.080 in. Head Diameter, 4.874 in. Length, Chevy, 5.7, 6.0L, Set of 8

Part Number: MAN-11682-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Intake, Stainless Steel, 2.165 in. Diameter, .313 in. Stem, 4.900 in. Length, Each

Part Number: MAN-11686-1

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2025 if ordered today

• Drop Ship
• Special Order

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: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .3136 in. Stem, 5.215 in. Length, Chevy, LS3, LS99, Each

Part Number: MAN-12353-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

Valve, Race, NK-844 Stainless Steel, Intake, 2.055 in. Diameter, 4.874 in. Length, Chevy, Each

Part Number: MAN-11680-1

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
• Special Order

VALVE DATS

Part Number: MAN-11689-1

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2025 if ordered today

• Drop Ship
• Special Order