Availability
Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.875 in. Stroke, 6.000 in. Rods, 2.100 Pin, 400 Main, Big Block Post, Chevy, Small Block, Each
Part Number: CPI-SMM21AMG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.875 in. Stroke, 6.000 in. Rods, 2.000 Pin, 400 Main, Big Block Post, Chevy, Small Block, Each
Part Number: CPI-SMM24A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SBC 2PC SEAL BB SNOUT ULTRA BOOST BILLET CRANK 4.000/350/2.00
Part Number: CPI-SMO-14-UB
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB FORGED ULTRA DIRT CRANK 4.000/350/2.100
Part Number: CPI-SMO-14A-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB ULTRA DIRT CRANK 4.000/2.448/1.888
Part Number: CPI-SMO-19-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB FORGED ULTRA DIRT CRANK 4.000/2.448/1.888
Part Number: CPI-SMO-19A-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB BILLET ULTRA DIRT CRANK 4.000/350/1.850
Part Number: CPI-SMO-1E-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
MAGNUM CRANK 4.000 350 1.850 BB POST
Part Number: CPI-SMO-1EA-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
MAGNUM CRANK 4.00 2.249 1.888/1.825 BB
Part Number: CPI-SMO-1KA-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
MAGNUM CRANK 4.000/400/2.200 BB POST
Part Number: CPI-SMO-22A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB ULTRA DIRT CRANK 4.000/400/2.000
Part Number: CPI-SMO-24-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB ULTRA DIRT CRANK 4.000/2.648/1.888
Part Number: CPI-SMO-29-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 1.888 Pin, 350 Main, Big Block Post, Chevy, Small Block, Each
Part Number: CPI-SMO19A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Crank, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, 2.100 in. Pin, Chevy, 400, BB Post
Part Number: CPI-SMO21A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 2.000 Pin, 400 Main, Big Block Post, Chevy, Small Block, Each
Part Number: CPI-SMO24A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SBC BB SNOUT ULTRA BOOST 4.250 / 350 / 2.100
Part Number: CPI-SMP-11-UB
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
MAGNUM CRANK 4.250 350 2.100 BB POST
Part Number: CPI-SMP-11A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
MAGNUM CRANK 4.250 350 2.000
Part Number: CPI-SMP-14A-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SB ULTRA BOOST CRANK 4.250/2.648/2.100
Part Number: CPI-SMP-21-UB
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES FORD ULTRA DIRT 3.000/ 2.249 / 1.888
Part Number: CPI-UJD-09V-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
FORD MAGNUM CRANK 3.00 302 2.123
Part Number: CPI-UJD-0BV-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES XL 302 FORD CRANK 3.000" STROKE
Part Number: CPI-UJD-0QV-UD
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SBF ULTRA BOOST 3.000 / 302 / 2.000
Part Number: CPI-UJD-0S-UB
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES SBF MAGNUM CRANK 3.250 302 2.100
Part Number: CPI-UJE-01V-MG
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
CALLIES ULTRA BILLET 5" S/B 5.625 / 2.474 / 2.197
Part Number: CPI-S0137
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.