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Howards Cams Track Smart 3 4340 Crankshafts H454256321T
Part Number: HRS-H454256321T
Howards Cams Track Smart 3 4340 Crankshafts
Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Chevy, 454, Internal Balance, 1-Piece Seal, Each
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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
H454256321T
Part Type:
Product Line:
Summit Racing Part Number:
HRS-H454256321T
UPC:
840793129737
Engine Stroke (in.):
4.250 in.
Crankshaft Material:
Forged 4340 steel
Engine Balance:
Internal
Rear Main Seal Style:
1-piece
Lightened:
No
Requires Narrow Bearings:
Yes
Rod Bearings Included:
No
Main Bearings Included:
No
Rod Journal Diameter (in.):
2.200
Main Journal Diameter (in.):
2.749 in.
Balancer Bolt Thread Size:
1/2 in.-20
Crankshaft Snout Style:
Standard
Quantity:
Sold individually.
Howards Cams Track Smart 3 4340 Crankshafts
Howards Cams Track Smart 3 crankshafts are computer-designed and forged from premium 4340 steel. This process includes double stress relief operations that make these cranks dimensionally stable. After machining, the units are hardened with a deep nitride for superior wear resistance, ideal for abusive track environments. Properly placed counterweights improve balance and reduce bearing loads. All rod journals are drilled and counterweights are profiled for piston clearance. Track Smart 3 replacements crankshafts are available for specific Chevrolet engine sizes and strokes. Order the model recommended for your application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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