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Old 08-27-2019, 08:55 PM
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TransAm 474 TransAm 474 is offline
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Join Date: Jun 2004
Location: Cape Fair,Mo
Posts: 795
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Ok guys, I recieved my CC'ing kit today, and even though I haven't had the heads rebuilt with hardened exhaust seats and a valve job yet, I played with them this evening, and put our new Ferrea valves in them and checked them 3 different times. The first time came out at 70cc, the second time came out at 69.5cc, the third time it came out at 70.5cc, so I am gonna call them 70cc. Now like I mentioned earlier, this is before the geads are rebuilt, but I was just curious what they measured. Calculating Compression with the 14cc Icon piston, .039" gasket, Zero decked, it comes out 9.82-1. I feel that it will be much more managable for pump gas than the Flat Tops 10.6-1. If may come out even a hair less than than that ifbthe heads gain a couple cc after being rebuilt?

What do you all think? Would you feel safe?

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1978 Trans Am
Pump Gas 461 Stroker