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Old 07-02-2012, 06:31 PM
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Long story short, last October we installed a rebuilt 351C 4V long block
in my '71 Grande. Old engine cracked its block and we found this Cleveland.
The only info we have about the engine is we measured valve lift at 0.58
and we could read some numbers on a piston. My question is what the
numbers mean; H555CP is cast aluminum for a Cleveland, the .030 is
obvious but the numbers '201-01-14-' I can't place.
So, H555CP and 201-01-14- .030
Just put a Holley 770 on this engine and it loves it
I thought I bought a stock Cleveland but maybe not.

mike

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Old 07-03-2012, 06:56 AM
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That is a hyper-eutectic cast Speed Pro/Sealed Power piston for 351C. A 67 CC chamber yields a static compression ratio of 9.68:1 (.030 over). The other numbers are "job" numbers for reference.

Decent piston, not for use with nitrous...

Jim
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Old 07-03-2012, 09:17 AM
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Ok, Thanks Jim.
Wish we had the Cleveland book when we installed the engine.
Would have taken a closer look at what the rebuilders did.
The 0.58 lift cam is interesting and this Cleveland is a quench head.

mike
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Old 07-03-2012, 02:03 PM
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Speed Pro ZH555CP - Speed-Pro Hypereutectic Pistons - Overview - SummitRacing.com
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