Availability
Crankshaft, One-piece Seal, Internal Balance, Forged Steel, 3.622 in. Stroke, Chevy, 6.2L, Each
Part Number: NAL-12674743
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Cylinder Head, Merlin, Cast Iron, Bare, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Each
Part Number: WRL-030620
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Crankshaft, Chevy big block, forged, 4.375 stroke, w/ center counterweights
Part Number: MAN-190320
Not Yet Reviewed
Estimated Ship Date: Feb 3, 2026 if ordered today
Estimated Ship Date: Feb 3, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, 6.535 Rod, Chevy, 454, Each
Part Number: SCA-445430
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 3.580 in. Stroke, Chrysler, 360, Each
Part Number: SCA-436010
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
FLATHEAD
Part Number: SCA-923910
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each
Part Number: SCA-435086
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Cylinder Heads, Freedom Series, Bare, Aluminum, Natural, 64cc Chamber, Angle Plug, Chevy, Small Block, Pair
Part Number: PMX-2108
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
FORGED CRANKSHAFTS
Part Number: SCA-774004060
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Dodge, Plymouth, 340, Each
Part Number: SCA-434020
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, Internal Balance, Forged 4340 Steel, 3.85 in. Stroke, Ford, 351W, Each
Part Number: SCA-4351W45
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, Standard Weight, Forged 4340 Steel, Internal Engine Balance, 3.622 in. Stroke, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, Each
Part Number: SCA-4LS136262
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.00 in. Stroke, Chrysler, 273, 318, 340, Each
Part Number: ESP-434040006123
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 320cc Intake Runner, 26 Degrees, Chevy, Big Block, Each
Part Number: WRL-030620-2
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
CRANK-4340 4.000 STROKE
Part Number: MAN-192124
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Single Cylinder Head, Race Porting, Aluminum, Assembled, 65cc Chamber, 227cc Intake, Chevy, Small Block, Each
Part Number: AFR-1068-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
SB Mopar 340 Forged Steel Crank, 3.580 stroke, 6.123 in. Rod, May Req. Heavy Metal, Lightning Holes on Rod Journals, Narrowed Rod Bearings Req.
Part Number: SUM-MOP34033106
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
351 STD WEIGHT
Part Number: SCA-4351C65
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
CYLINDER HEADS PAIR
Part Number: PMX-2181HR
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
ROATING ASSEMBLY
Part Number: SCA-1-91205BISTD
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit
Part Number: ESP-13101060
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
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: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Pulley Set, Serpentine, Performance Ratio, Billet Aluminum, Black Powdercoated, No Air Conditioning, Power Steering, Chevrolet, LS, Kit
Part Number: MCH-19910-08
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Cylinder Head, Motown, Cast Iron, Assembled, 64cc Chamber, 220cc Intake, Chevy, 302, 327, 350, 400, Each
Part Number: WRL-014150-3
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit
Part Number: ESP-13054040
Not Yet Reviewed
Estimated Ship Date: Monday 12/22/2025
Estimated Ship Date: Monday 12/22/2025
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
