Question on these 347 and 348 motors

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01-12-2004, 08:04 PM

maddboost

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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?

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01-12-2004, 08:37 PM

Colonel

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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.

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01-12-2004, 08:39 PM

dug

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

Im just messin. What Colonel said.

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01-12-2004, 08:41 PM

Colonel

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01-12-2004, 09:16 PM

Ron@Vengeance

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

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01-13-2004, 01:20 AM

Colonel

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"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!

Oh well, at least the grocery getter will keep getting faster so long as the Money Pit Racer is in the shop.

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