quick response
Joined: Jan 2002
Posts: 732
Likes: 1
From: waco, tx
Car: 91Z28 L98
Engine: HSR 350
Transmission: Goebel 700R4
You let the cat out of the bag.... now I'm going to bid on it, too. Just kidding. I think it will fit, but you might need a different flywheel and starter. At least I did when I put a '79 350 in my '86, but it is an automatic, too. Maybe someone else will confirm this.
Joined: Jan 2002
Posts: 732
Likes: 1
From: waco, tx
Car: 91Z28 L98
Engine: HSR 350
Transmission: Goebel 700R4
Our '86s do have a 1-piece rear main seal and the '79 will be 2-piece, but that won't make a difference on how it fits. I do like the 1 piece rear mains because they are less prone to leaking, but of course you'll pay more for one usually because there are a lot more of the old style blocks out there. If the engine comes with the main caps, oil pan, and crankshaft, then you'll just use those off that engine.
Joined: Mar 2000
Posts: 43,187
Likes: 42
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
It will require a different type of flywheel, like that used on '82-'85 3rd gen manual transmissions.
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