Product Summary

3.480" Stroke, 350 mains Main Journal Style

  • New high tech, internal balanced, fatigue resistant 80-60-06 cast steel crank with near forged endurance
  • Fits 1968 to 1985 350 engines with a two-piece rear main seal
  • All journals are ground and polished to exact tolerances
  • Superior quality stock replacement crank at terrific value
  • IMCA approved for Hobby Stock, Northern, and Southern Sport Mod (Drilled only on the first rod throw)
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Key Specs

Stroke3.480"
Main Journal Style350 mains
Crankshaft MaterialCast Steel
Main Journal Diameter2.449"
Rod Journal Diameter2.100"
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91515350 Details

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 stock replacement crank at a value price.

  • IMCA southern sport mod legal (Drilled only on the first rod throw)
  • Angle oil shot holes 
  • Internal balanced to OE GM specs

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 91515350 Specifications

KEY SPECS
MFG. Part #91515350
BrandSpeedway Motors
Stroke3.480"
Main Journal Style350 mains
Crankshaft MaterialCast Steel
Main Journal Diameter2.449"
Rod Journal Diameter2.100"
Rear Main Seal Style2-piece
Weight50 lbs.
GENERAL
Sold in QuantityEach

Ratings & Reviews

5

48 Reviews

Overall Assessment

The product, a crankshaft replacement, is consistently reviewed as high-quality, functioning effectively, and delivering great value for money. Customers note its ease of installation, precise fitment, high performance, and durability in various applications, mentioning uses in dirt car engines to street engines and racing cars. Its appearance and superior manufacturing have customers comparing it favorably to more expensive variants. Particularly acknowledged is the presence of SCAT markings, suggesting a well-made piece. Some reviewers prefer this new product to re-ground alternatives, suggesting it's ideal for engine rebuilds, backup motors, and high-performance requirements. The customers commend its good quality, practicality, and price, with intentions of repeat purchases.

5

48 reviews

5

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Filter by Ratings

If I needed a new crankshaft

5.0

5 months ago

Cool Breeze

rockford,IL

Verified

fit very well in my 350 4bolt block

Would Recommend

I would bye this product again

5.0

7 months ago

mow

NY

Verified

Everything about the crankshaft was spot on! Every journal miked right on.

Would Recommend

Great product

5.0

11 months ago

Boog

Magee ms

Verified

Exactly what I wanted Well built crank Order was a few days late due to delivery company's but speedway refunded me my express shipping

Would Recommend

As described online

5.0

a year ago

85s

Missouri

Verified

Great product fast shipping

Would Recommend

Crank it up!

5.0

a year ago

Low Tony

Jefferson, Oregon

Verified

Very nice machine work. I have been a machinist for decades and always appreciate good quality work.

Would Recommend

Yes I'd buy this again

5.0

a year ago

TJ

Mobile Al

Verified

It was delivered fast and it sounds really good in my 350

Would Recommend

Great price for a great crankshaft

5.0

a year ago

7Jiggy

South Florida

Verified

The crankshaft is a precision piece and was packaged very well. I can't wait to put my new 350 together!

Would Recommend

Quality crankshaft

5.0

a year ago

Street

Indiana

Verified

Fit perfect

Would Recommend

Perfect replacement for my application

5.0

3 years ago

Drtrcr22

Carlsbad, NM

Verified

Replaced a questionable crank in my dirt car engine rebuild

Would Recommend

i would buy again

5.0

3 years ago

D.M. Outlaw Garage

southeast ks

having the kit component list makes it easy to buy the economy kit to buy one piece at a time , good looking product,waiting to install but looks great

Would Recommend

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Showing 10 of 48 reviews

Questions & Answers

28 Questions • 12 Answers

it come with rod and main bearings and is it std ??????

by matt

• 5 years ago

1 answer

Would this crank be suggested in a 260 horsepower marine application?

by Marty

• 7 years ago

1 answer

can you put a 6 in rod on a stock 350 crank shaft

by pete

• 7 years ago

1 answer

Hello, have you got this product in the original size (standard) for a chevy 350 5,7lt l48, chevrolet corvette c3 1980 automatic

by julio

• 8 years ago

1 answer

Will this fit a 95 350 block

by Shane

• 9 years ago

3 answers

Will this crank work with pop up pistons.. My stock crank dose not have the clearence for the pistons by a couple thousandths

by Jordan

• 9 years ago

1 answer

What caps are needed for this crank

by Willcnr09

• 9 years ago

1 answer

When you say it needs to be balanced are you meaning just a harmonic balancer

by Kevin

• 9 years ago

1 answer

Can you run a 6.00 rod with this crankshaft with no problems. I am having the motor balanced. What do you recommend the 6.00 or the 5.7 rod with this crankshaft. Running circle track. Thanks

by Larry

• 10 years ago

1 answer

Does this crankshaft require balancing?

by Ttg kay

• 10 years ago

1 answer

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Fitment

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  • Gen 1 L46 Small Block Chevy

  • Gen 1 L48 Small Block Chevy

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  • Gen 1 L81 Small Block Chevy

  • Gen 1 L82 Small Block Chevy

  • 2-Piece Rear Main Chevy 350

  • Gen 1 L46 Small Block Chevy

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  • Gen 1 L46 Small Block Chevy

  • Gen 1 L48 Small Block Chevy

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  • Gen 1 L81 Small Block Chevy

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  • 350 Chevy Small Block V8

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