New high tech, fatigue resistant 80-60-06 cast steel crank with near forged endurance, Two-piece rear main
Speedway 383 Chevy Crankshaft, Two-Piece Main Speedway Motors
Speedway 383 Chevy Crankshaft, Two-Piece Main
Sku # 91515383
Mfr. Part # 91515383
Condition
New
Brand
Speedway Motors
Sold
Each
Details
Info

New, hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. All journals are ground and polished to exacting tolerances. Superior quality 383 stroker crank at a stock replacement price.

For blocks with 2-piece rear main seals. External balance.

Installation Tips

Please Note: All crankshafts must be balanced for their rotating assembly by a qualified engine machine shop before installation and use

Specs
Sold in Quantity
Each
Main Journal Style
350 mains
Rear Main Seal Style
2-piece
Main Journal Diameter
2.448"
Crankshaft Material
Cast Steel
Stroke
3.75
Weight
50
Rod Journal Diameter
2.100"
MFG. Part #
91515383
Reviews

No block clear ending needed on mine!

Rated
Product Rating
by Bluegrass express on October 27, 2021

Summary: Amazing clearances, the block was perfect in terms of clearance and quality I will be buying another block specifically to use this crank again

Cons: Needs balanced, but not really a con

Pros: No block clearencing was needed! Perfect measurements on the main journals Scat Castings means it's quality!

Yes, I recommend this product.

Above expectations

Rated
Product Rating
by Gmtekman on October 30, 2020

Summary: Beautiful

Yes, I recommend this product.

great crank at the best price

Rated
Product Rating
by nitro on June 24, 2019

Summary: very nice crank, even had scat cast onto it. save the money & buy speedways crank. i put speedway's windage tray on it too.

Yes, I recommend this product.

Great piece

Rated
Product Rating
by Nova builder on June 11, 2019

Summary: Great piece, checked clearance on every main and rod. They were spot on.

Yes, I recommend this product.

I will buy again

Rated
Product Rating
by Pig pen on February 21, 2018

Summary: Fit and function were excellent

Yes, I recommend this product.

Related Items / Suggested Parts
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.