LS1TECH - Camaro and Firebird Forum Discussion - Question on these 347 and 348 motors

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maddboost

01-12-2004 08:04 PM

Question on these 347 and 348 motors

I was just wondering how they are getting these slightly larger than stock cube motors? Like FMS 347 or Speed Incs 348. Are they doing a slight overbore or is it the worlds smallest stroker?

Colonel

01-12-2004 08:37 PM

A slight bore. The stock bore is 3.9. A 3.91 would yeild 348 CI.

You wouldn't fool with buying a crank or even offset grinding a crank for 1-2 CI.

dug	01-12-2004 08:39 PM

Actually these motors have C5R blocks with the destroked 4.8 crank...

Im just messin. What Colonel said.

Colonel

01-12-2004 08:41 PM

:nod: :321: ;)

Ron@Vengeance

01-12-2004 09:16 PM

Wonder how Colonel has all these answers. Last time I heard, he only ran a heads/cam/stock bottom end setup...... :D

Colonel

01-13-2004 01:20 AM

"Last time I heard, he only ran a heads/cam/stock bottom end setup......"

I'm beggining to think that's all I have too! :jest: Oh well, at least the grocery getter will keep getting faster so long as the Money Pit Racer is in the shop. :burn:

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