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Old 10-31-2006, 03:41 PM   #6 (permalink)
Ren Finley
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Re: Big bore questions round II - Crank Grinding?

The 383ci Small Block Chevy is a 350 with an unmodified 400 crank. The
most common way to resize the ConRod bearing is to weld additional
material on the outside of the journal and then grind/polish into the
desired size. It is a very common technique for rare/collector cars
then the bearing journal become too small for the smallest available
bearings. I had it done to a 1957 Alfa Romeo coupe.

Don't know how it would work on a 10k RPM motorcycle though.

Ren

On 10/31/06, Walzer, Carl (.) wrote:
> That might be too much to make up with a bearing. The car projects I've
> heard of either got aftermarket rods bored to size, or "resized" their
> current rods. Not sure if resizing means welding up and boring again, or if
> there is another process. The Chevy 383(?) is a stroked Chevy 350. Do a
> search on that and you'll likely get some info.
>
> Carl
>
> -----Original Message-----
>
>
> This reduces the size of the connecting rod journal correct? If so do
> you just make up the size difference with a bearing? If not what do
> you use?
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Ren Finley :: ren.finley@xxxxxx
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