Availability
Crankshafts
Crankshafts, Magnum, 4340 Steel, 4.00 in. Stroke, Internal Balance, 58X Reluctor, 1-Piece Main, 2.10 in. Diameter Journal, Lightened, Chevy, LS, Each
Part Number: CPI-APO31V-MG
Not Yet Reviewed
Estimated Ship Date: Dec 9, 2026 if ordered today
Estimated Ship Date: Dec 9, 2026 if ordered today
Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, 2.200 in. Pin, Chevy, 454
Part Number: CPI-BBS42B-MG
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each
Part Number: CPI-APO-31V-AS
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2027 if ordered today
Estimated Ship Date: Apr 6, 2027 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Crankshaft, Magnum, 2-piece Rear Main Seal Style, Internal Engine Balance, Forged 4340 Steel, 4.500 in. Stroke, Standard Snout, Chevrolet, 7.4L, Each
Part Number: CPI-BBQ42B-MG
Not Yet Reviewed
Estimated Ship Date: Apr 5, 2027 if ordered today
Estimated Ship Date: Apr 5, 2027 if ordered today
MODEL 'T' REPLACEMENT 1908-1927
Part Number: SCA-7T4000
Estimated Ship Date: Jan 7, 2027 if ordered today
Estimated Ship Date: Jan 7, 2027 if ordered today
Engine Crankshaft, Chevy 4-454-4375-6385-2 454 Big Block Forged 4340 Steel
Part Number: SCA-445426-2
Not Yet Reviewed
Estimated Ship Date: Jan 6, 2027 if ordered today
Estimated Ship Date: Jan 6, 2027 if ordered today
Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Bolt, 58-tooth GM Reluctor, Dry Sump Post, Standard Snout, Chevy, Gen V, Each
Part Number: CPI-5UO-31V-AS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, 2.200 in. Pin, Chevy, 454
Part Number: CPI-BBP42B-MG
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, Forged 4340 Steel, 4.125 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each
Part Number: CPI-APU-31V-AS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Long Snout, Chevy, Small Block, LS7, Each
Part Number: CPI-AWO-31V-AS
Not Yet Reviewed
Crankshaft, Forged 4340 Steel, 3.625 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each
Part Number: CPI-APH-31V-AS
Not Yet Reviewed
Estimated Ship Date: Apr 19, 2027 if ordered today
Estimated Ship Date: Apr 19, 2027 if ordered 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: Apr 20, 2027 if ordered today
Estimated Ship Date: Apr 20, 2027 if ordered today
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: Apr 20, 2027 if ordered today
Estimated Ship Date: Apr 20, 2027 if ordered today
DURAMAX MAGNUM BILLET 3898/3.875/2.480
Part Number: CPI-D333MU-MB
Not Yet Reviewed
CALLIES GEN 3 HEMI MAGNUM 4.000 / 2.559 / 2.200
Part Number: CPI-YYO-E1V-MG
Not Yet Reviewed
Estimated Ship Date: Apr 19, 2027 if ordered today
Estimated Ship Date: Apr 19, 2027 if ordered today
FORD CCW MAGNUM CRANK 3.400 302 2.100
Part Number: CPI-UJW-01V-MG
Not Yet Reviewed
Estimated Ship Date: Apr 19, 2027 if ordered today
Estimated Ship Date: Apr 19, 2027 if ordered today
Crankshaft, Magnum, 1-Piece Seal, Forged 4340 Steel, 4.250 in. Stroke, 6.385 in Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, GenV, GenVI, Each
Part Number: CPI-IBP42B-MG
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2027 if ordered today
Estimated Ship Date: Apr 14, 2027 if ordered today
Chrysler BB Crank 4.500/ Chry Main/Chevy
Part Number: CPI-GEQ-62J-MP
Not Yet Reviewed
4340 Forged Superlight
Part Number: SCA-445415C-3
Not Yet Reviewed
Estimated Ship Date: Jan 4, 2027 if ordered today
Estimated Ship Date: Jan 4, 2027 if ordered today
Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, 2.100 in. Pin, Chevy, 400
Part Number: CPI-SAJ21A-MG
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
4340 Forged Pro Series Lightweight
Part Number: SCA-44294500-2
Not Yet Reviewed
Estimated Ship Date: Dec 31, 2026 if ordered today
Estimated Ship Date: Dec 31, 2026 if ordered today
351 FORD SUPERLIGHT
Part Number: SCA-4351C50-3
Not Yet Reviewed
Estimated Ship Date: Dec 21, 2026 if ordered today
Estimated Ship Date: Dec 21, 2026 if ordered today
400 2-PC REAR SEAL, SUPERLIGHT CHEVY
Part Number: SCA-440086-3
Not Yet Reviewed
Estimated Ship Date: Jan 4, 2027 if ordered today
Estimated Ship Date: Jan 4, 2027 if ordered today
400 2-PC REAR SEAL, SUPERLIGHT CHEVY
Part Number: SCA-440076-3
Not Yet Reviewed
Estimated Ship Date: Jan 4, 2027 if ordered today
Estimated Ship Date: Jan 4, 2027 if ordered today
Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.250 in. Stroke, Chevy, 454, Each
Part Number: SCA-445425-2
Not Yet Reviewed
Estimated Ship Date: Jan 4, 2027 if ordered today
Estimated Ship Date: Jan 4, 2027 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster