383 car/truck motor

[dan brooks]

I've been arguing with a friend of mine and figured I'd throw it out here.
I have a 69 383 truck short block, he says there's a difference between a 383 truck motor and a 383 car motor, I say there's no difference, the block and internals are all the same, what does everyone say here??? not counting the real early 361/383 motors built around 1960. Thanks.

 

[Jerry Hall]

I don't know about differences in truck motors and car motors, but I do know there was a 383 RB engine early on.

 

[MarkLevi]

Not aware of differences in a 383. Possibly your friend is thinking of the 426 (heavy-trucks wedge) Commercial engine versus the 426 (common use) Wedge? Significant differences in the water pump/jacket/heads/block on those.

Just a thought.
M

 

[Runcharger]

I think the 2 barrel engines were 9-1 compression with a wimpy cam. So yes it won't be on par with a 383 R.R. engine.

 

[Outsider]

Blocks the same, but through the years there were differences in cams, timing chain (roller chain in some HD), bearings etc.

 

[dan brooks]

Blocks the same, but through the years there were differences in cams, timing chain (roller chain in some HD), bearings etc.

Exactly! so you should be able to take a low compression block and supercharge it if you wanted. The block/crank is the same throughout right no matter if it's from a car or truck