383 vs 350?

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Mar 10, 2010 | 03:57 PM

MakoShark72

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Safety Car

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From: Gig Harbor WA

383 vs 350?

Is the only BASIC difference in a 383 vs a 350 the crank (longer stroke)?? And associated clearance issues...

Thanks.

Mar 10, 2010 | 03:59 PM

BKbroiler

Le Mans Master

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From: Lebanon Township New Jersey

.030 overbore on the 350, in addition to the stroke increase.

Mar 10, 2010 | 04:05 PM

Gordonm

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From: Forked River NJ

Pistons will be different also. The same rods can be used. Clearance must be checked. I had to do a fair amount of grinding on a 350 block I had.

Mar 10, 2010 | 05:02 PM

enrgizerbunny

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Joined: May 2009

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From: Cherry Point North Carolina

I found this to very very informative about 383's
http://www.carcraft.com/techarticles...evy/index.html

The stock rods can be used, but using the original rods causes the piston to push on the cylinder wall much more than it previously had.

I'm looking to build me a stroker down the road one day and then find a body to match.

Last edited by enrgizerbunny; Mar 10, 2010 at 05:08 PM. Reason: Put the link in the wrong place

Mar 10, 2010 | 05:57 PM

schmegeggie

Melting Slicks

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From: Salisbury Maryland

Lots more HP too!

Mar 10, 2010 | 07:48 PM

jordan89

Safety Car

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From: Oakland California

Quote:

Originally Posted by schmegeggie

Lots more HP too!

Don't forget, lots more torque as well

Mar 10, 2010 | 08:31 PM

Ganey

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From: CORVETTE 77 385 C.I. TEXAS

& can run like a BB.

Mar 10, 2010 | 08:50 PM

ToddG

Instructor

Joined: Jan 2010

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From: Caldwell Idaho

The biggest difference is the cylinder dwell time at TDC. This factor in its self creates more torque. Not to say this longer dwell time produces all the new found torque as there are quite a few other factors that contribute to it. On a scale I would say this is one of the largest reasons.

c-ya
ToddG