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Re: [GMCnet] Overbore Size [message #328540 is a reply to message #328538] Tue, 23 January 2018 10:52 Go to previous messageGo to previous message
powwerjon is currently offline  powwerjon   United States
Messages: 849
Registered: March 2013
Karma:
Senior Member
Dave,
You are not that far from Dick Paterson up in Coldwater, ONT. You can reach him at 705 325-4554. He is the go to person on the 455 engine and the 403 too.

J.R. Wright
GMC GreatLakerTech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan

> On Jan 23, 2018, at 9:31 AM, Dave King wrote:
>
> On a LOT of engines 0.060" is probably over the RECCOMMENDED maximum.
> Ken H. knows some engine people that could probably give a very educated opinion.
> 0.060" might work on a particular block but not on another of the same type/brand, etc.
> Core shift.
> Ken H's friend might also be willing to tell us about "core shift"
> --
> DAVE KING
> lurker, wannabe
> Toronto, Ontario, Canada
>
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