I don't have ready access to exact measures of the sort you are looking for,
but I can give you some more information.
Many years ago I put a 283 (small block V-8) is a '41. The length was a
non-issue, but the width was a problem. If you center the motor between the
frame rails the exhaust manifold will interfere with the steering box. You
will have this same issue with any small block and likely also with a 4.3
V-6. You can think of the 4.3 as a small block V-8 with the two font
cylinders cut off. In many ways it is the same motor and same issues.
Unless you do something radical, like an old straight 8, most the motors you
consider will be shorter than the original six. The one common swap where
that isn't the case is a GMC inline six. They look very similar to the
original motor, but are a couple inches longer.
I've seen a 4.3 V-6 in a '47-'54 pickup. It seemed like a real clean swap
and the owner though it had plenty of power for the way he drove it. He was
also disappointed that no one wanted to buy it because it was neither a V-8
nor original.
Not a direct answer to your question, but I hope my information helps you
anyway.
Steve@OldSub.com
www.OldSub.com
----- Original Message -----
From: "Brett Dodson" <bdodson@georgiaaquarium.org>
To: <oletrucks@autox.team.net>
Sent: Friday, July 28, 2006 12:21 PM
Subject: [oletrucks] Engine Swap Question
> I could really use block lengths on V6, 235, small block V8, T5 and
> stock 3 speed trannies.
>
> Overall lengths of the motor/trans of any of these combinations would be
> cool to.
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