Howards Cams Engines & Components

Camshaft, Mechanical Roller Tappet, Advertised Duration 317/327, Lift .810/.765, Chevy, Big Block, Each

Part Number: HRS-121033-12

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Camshaft, Mechanical Roller Tappet, Advertised Duration 307/317, Lift .714/.714, Chevy, Big Block, Each

Part Number: HRS-121083-08

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Valve Springs, Dual, 1.295 in. Outside Diameter, 407 lbs./in. Rate, 1.060 in. Coil Bind Height, Set of 16

Part Number: HRS-98118

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Ring, Top, 4.035"

Part Number: HRS-H486040305T

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Ring, Oil, 4.045"

Part Number: HRS-H486040405O

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Ring, Top, 4.045"

Part Number: HRS-H486040405T

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Valve Spring, Single, 1.265 in. Outside Diameter, 380 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: HRS-98213-1

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Ring, Oil, 4.130"

Part Number: HRS-H486041255O

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Ring, Oil, 4.150"

Part Number: HRS-H486041455O

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Valve Spring, Single, 1.265 in. Outside Diameter, 380 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: HRS-98215-1

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Ring, Top, 4.160"

Part Number: HRS-H486041555T

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Ring, Second, 4.170"

Part Number: HRS-H486041655S

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Ring, Top, 4.170"

Part Number: HRS-H486041655T

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Valve Spring, Single w/Damp, Nitrided

Part Number: HRS-98221-1

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Valve Spring, Pacaloy Mechanical Roller, Dual, 1.260 in. O.D., 0.624 in. I.D., 610 lbs/in., 0.550 in. Maximum Lift, 1.115 in. Coil Bind, Set of 16

Part Number: HRS-98223

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Ring, Plasma Moly, File Fit, 4.255"

Part Number: HRS-H486042505T

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Valve Springs, Valve Spring, Dual, 1.300

Part Number: HRS-98335

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Valve Spring, Dual, 1.385 in. Outside Diameter, 263 lbs./in. Rate, 0.910 in. Coil Bind Height, Each

Part Number: HRS-98341-1

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Main Cap, SB Chev 350

Part Number: HRS-H350S-1

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Crankshaft, Chev SB, 350 Main, 1pc Seal

Part Number: HRS-H353485711T

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Crankshaft SB Chev 350 Main

Part Number: HRS-H353485712T

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Crankshaft, 2-Piece Seal, Internal Balance, Forged, 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each

Part Number: HRS-H354006012T

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Main Cap SB Chev 400

Part Number: HRS-H400-1

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Crankshaft, 2-Piece Seal, Internal Balance, Forged, 4340 Steel, 3.875 in. Stroke, Chevy, 400, Each

Part Number: HRS-H403876012T

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Crankshaft, 2-Piece Seal, Internal Balance, Forged, 4340 Steel, 4.000 in. Stroke, Chevy, 400, Each

Part Number: HRS-H404006012T

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