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Vehicle Info NeededFORD PERFORMANCEPART NUMBER: 397-M-6303-C340
Crankshaft 302/5.0L
$87699
Ships on 10/19/2026
Lowest Price GuaranteeCrankshafts
- Crankshaft
- 302/5.0L
- Forged Steel
- 3.40" Stroke
- 2.248" Main Journal
- 2.1232" Rod Journal
- 1.690" Rod Journal Width
- Requires Balancing
Fits 302 production and Ford Racing cylinder blocks. Stock 2.1232" rod journal diameters. Use with M-6200-D50 "Sportsman" rods (5.40" long) and 1.090" CD pistons in standard 302 block for 347 cu. in.Features: - Lightening holes
- Rounded CW leading edge, tapered trailing edge
- Rod and main journals are nitrided and polished
- Requires custom pistons, rods and balancing
Fits 302 production and Ford Performance cylinder blocks. Stock 2.1232" rod journal diameters. Use with M-6200-D50 "Sportsman" rods (5.40" long) and 1.090" CD pistons in standard 302 block for 347 cu. in. Features: Lightening holes, Rounded CW leading edge, tapered trailing edge, Rod and main journals are nitrided and polished. Requires custom pistons, rods and balancing
- High Strength Forged Steel
- Lightening Holes
- Nitrided And Polished Journals
Crafted from forged steel, these crankshafts are specially designed for the harsh environment of the race track. Available for the Mustang Boss 302, Cobra Jets, and the SVT Lightning, Ford Racing forged crankshafts are the answer to your long term crankshaft performance issues. Ford Racing crankshafts are ready to go into your Boss 302 or 5.4L Ford Racing Engine.
Features:
- Forged Steel Construction For Superior Durability And Extended Service Life
- Standard Journal Diameters For Maximum Compatibility
- Service Replacements For Mustang Boss 302, Cobra Jet 5.4L, And SVT Lightning 5.4L
Part TypeCrankshaft
Product LineFord Performance Crankshafts
BrandFORD PERFORMANCE
Package Height7.5
Package Width8.0
Package Length26.0
Weight60.0 PG
Weight60 lb (27.211 kg)
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Main DiameterOEM
Main Journal Diameter2.248 in (57.099 mm)
LightenedNo
QuantitySold individually
Engine Balance (Oz.)External, 28 imbalance
Crankshaft Snout StyleStandard
Main Bearings IncludedNo
Rod Bearings IncludedNo
Bob WeightN/A
Rear Main Seal Style1-piece
Balancer Bolt Thread Size (In.)5/8-18
Requires Narrow BearingsNo
Pin Diameter2.1 in (53.3 mm)
Part FitmentSemi Universal
Rod LengthOEM
Engine Stroke3.4 in (86.36 mm)
Vendor Part NumberM-6303-C340
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
