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what makes a jp block different

Started by _judgelj_ , Oct 25 2010 08:21 PM

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63 replies to this topic

#51 _Skapinad_

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Posted 21 May 2016 - 09:34 AM

How's those pics coming Phil ?

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#52 _repco_

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Posted 21 May 2016 - 11:32 AM

Hi. It will take some time to cut the blocks up to see the differences. As far as the metallurgy report on the blocks go, I have to look through 37 years of daily bulletins from repco. It will take a bit of time. So please be patient . Phil.

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#53 _GGG_

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Posted 21 May 2016 - 12:34 PM

Sure they will be more rigid. Your engine could be an experiment that's all I'm saying. Simply siamesing the cylinders and not considering cylinder wall thickness could give undesired results. If your block has a smooth finish and it hasn't been hand polished it's likely been moulded in a different process , probably chemical set sand , as this normally has a smoother finish. This would make you think it was not cast in the production Holden engine foundry.

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#54 S pack

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Name:Dave
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Posted 04 June 2016 - 02:14 PM

Hi. It will take some time to cut the blocks up to see the differences. As far as the metallurgy report on the blocks go, I have to look through 37 years of daily bulletins from repco. It will take a bit of time. So please be patient . Phil.

Hi Phil

Have you found that metallurgy report yet. Will be real interesting to see what REPCO found.

Hopefully might settle a few debates about the JP blocks once and for all.

Cheers

Dave.