New Engine
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Joined: Dec 2005
Posts: 159
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From: New Bedford, Ma
Car: 1987 IROC
Engine: Destroked 377
Transmission: TH-400
Axle/Gears: 9inch with 3.70's
New Engine
Im about to install my new motor in my car. Its a 383 with about 490 horse. 10.3:1 compression. Im trying to get some tips on breaking it in. Havent done this before. Heres what i know. I know I have to let it rev at like 2500 for about 20 min then shut it off let it cool and do it again. Then change the oil a filter. Then set timing. If im missing anything let me know thanks.
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
I don't know of any reason to repeat the cam break-in. 20-30 minutes is fine. Change the oil & filter after that.
Thread Starter
Member
iTrader: (3)
Joined: Dec 2005
Posts: 159
Likes: 1
From: New Bedford, Ma
Car: 1987 IROC
Engine: Destroked 377
Transmission: TH-400
Axle/Gears: 9inch with 3.70's
Ok will do so. Then what about when i put a load on it. Should I wait so many miles before i launch it?
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