Availability
Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each
Part Number: CPI-APP-31V-AS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Bolt, 58-tooth GM Reluctor, Wet Sump Post, Standard Snout, Chevy, Gen V, Each
Part Number: CPI-5TO-31V-AS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, 2-Piece Seal, Internal Balance, 4340 Forged Steel, 4.50 in. Stroke, Standard Snout, Chevrolet, Big Block, Each
Part Number: HRS-45445006535
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
CRANKSHAFT-CHEVY LT1 4.000
Part Number: MAN-194258
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
SB Chevy Forged Steel crankshaft, 3.875 Stroke, Two Piece Rear Seal, Req. Narrowed Rod Bearings, Lightened, Nitride, Designed for 6.000 in. Rod
Part Number: SUM-SBC4003875
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Chevy, 350, Each
Part Number: ESP-4350350057LA
Estimated Ship Date: Jan 5, 2026 if ordered today
Estimated Ship Date: Jan 5, 2026 if ordered today
Counter Balance Plate, Steel, Chevy, Small Block 400, Each
Part Number: RAU-399-100
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Duramax Cam Key, Each
Part Number: SUM-161003
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Chevy Gen. 5 LT, 4340 Forged Steel Crankshaft, 4.000 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.
Part Number: SUM-180LT400058
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each
Part Number: SUM-SBC35040002P
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
CRANKSHAFT
Part Number: NAL-12732515
Not Yet Reviewed
Estimated Ship Date: Mar 31, 2026 if ordered today
Estimated Ship Date: Mar 31, 2026 if ordered today
CRANK-4340 FORGE 4.375 STROKE
Part Number: MAN-190250
Not Yet Reviewed
Estimated Ship Date: Jan 19, 2026 if ordered today
Estimated Ship Date: Jan 19, 2026 if ordered today
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