crank and bearings
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Junior Member
Joined: Apr 2007
Posts: 98
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From: Giathersburg, Maryland
Car: 1987 Z28
Engine: 355
Transmission: 700r4
Axle/Gears: 3.42
crank and bearings
im building a 350 block for my camaro and im using a used crank that has been machined and i have got the crank measured and all but i dont know what size bearings i need to use. I also dont know what year the block is and im just overall confused right now. if someone could help me out that would be great thanks
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The information you need is available on www.mortec.com.
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Joined: Jul 2004
Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: crank and bearings
What size is the crank? 2.499 I think is normal, if it's 2.489 then it'd take .010" undersize bearings, etc. Someone correct me if i'm off on that number. Easiest bet is to ask what the crank was machined for. If he says "it was turned 10/10" that means .010 on the mains, .010 on the rod bearings. It's rare to hear "10/20" or something like that.
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