Eagle B15455E060 388 CID Balanced Rotating Assembly, Chevy 350
Eagle B15455E060 388 CID Balanced Rotating Assembly, Chevy 350
Part number: 8QA27
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Listed for: Chevrolet 350Fitment notes & questions
Eagle B15455E060 388 CID Balanced Rotating Assembly for the Chevrolet 350. Crank work comes with bearings, balancing and careful measurement.
Key features
- Cast crankshaft with a 3.750-inch stroke
- 700-inch 5140 I-beam connecting rods with 3/8-inch ARP 8740 bolts
- 060-inch hypereutectic KB Claimer flat-top pistons, -5 cc volume
- Plasma-moly standard-gap rings and King SI rod and main bearings
- Harmonic damper and flexplate/flywheel are not included
Specifications
- Part type: Crankshaft
Fitment for the Chevrolet 350
Listed for the Chevrolet 350. Check your year, model and trim against the title before you order.
What it does
A new or reground crank is usually part of a full engine rebuild or stroker build. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Have the rotating assembly balanced if you change pistons, rods or the crank.
- Main and rod bearings: Always new with a crank.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Confirm your year, make, model and trim match the fitment listed above (Chevrolet 350).

Crankshaft for the Chevrolet 350: what to know
A new or reground crank is usually part of a full engine rebuild or stroker build.
Fitment notes
- Listed for: Chevrolet 350.
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Main and rod bearings. Always new with a crank.
More for your car: Chevrolet Parts · Engine
Questions about Chevrolet 350 crankshaft
Will this fit my Chevrolet 350?
Do I need balancing?
Where do specs and warranty details come from?
Questions & answers
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