I didn't know this engine existed until recently. Apparently it was an option on 94-96 Caprices(?).
Anyone familiar with this motor?
Are the external dimensions different than the familiar 350 cube motor?
It is reverse flow cooled, like an LT1-350, right?

 

do a search under mini, small, etc lt1 and you should find alot of info.

 

You can look for "Baby LT1"

It's essentially the same engine - only it displaces 4.3L.........

I've heard that if a person uses the crank out of the 4.3L V8 in a 5.7L V8 you'll end up with a final displacement of 302......

Kinda cool.......302 was the displacement of the original Z28.

Now that would be a cool stroker.

 

So if you destroke the engine to 302, I wonder if you could somehow bore it to make a 327. I think it would be cool to have a 327 LT1.

And then, would you be able to rev considerably higher with the smaller stroke? If so, I think it may make a helluva starting point for a turbo motor.

Can anyone justify this?

 

Don't count of it. Consider .060" the realistic max for overbore.
BTW, the original 327 had a 3.25 stroke. 302-327-350 had same bore.

And then, would you be able to rev considerably higher with the smaller stroke?

Yes, shorter stroke, other factors equal, allows higher revs. This is why revs is not the factor used to determine the limitations of an engine, but rather piston speed, which takes into account, the stroke. Which is why, a model airplane engine reving to 20,000 rpm, is ho-hum.

 

Actually, turbos like lots of stroke. More stroke creates more exhaust gas velocity, which spools a turbo quicker.

-Chris