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Old 09-03-2005, 05:21   #1 (permalink)
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Pist n broke!!!

Hey people, need some info on who or where i can get a decent set of slugs for my 351. I would like to keep to a minimum when it comes to $$$ but if this cant be avoided so be. It doesnt ever see more than 12 psi so Hypers should be fine, but not sure if i can get the comp i want (8:1-9:1). I have 2v O/C Heads and standard rods. Any ideas on how to achieve this would be .

At least it hasnt seen 12PSI yet. Once comp is down and its all run in again, i am going to boost it up!!
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Old 09-03-2005, 07:30   #2 (permalink)
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Re: Pist n broke!!!

Thats roughly a standard 351 comp ratio. Minimise skimming the heads and decking the block.

Could get 20cc dished pistons (not sure on brand availability & $$), which effectively increases the total CC size. So with 65CC chambers, 30thou overbore, 40thou gaskits, ~25thou deck height you'd be looking at about 8.5:1

As above with 70CC chambers = about 8:1

With flat top pistons you'd go to 10+ (roughly 2 points up)
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Old 09-08-2005, 03:28   #3 (permalink)
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Re: Pist n broke!!!

Go forged and do it once. Did you melt the piston.
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Old 09-20-2005, 03:12   #4 (permalink)
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Re: Pist n broke!!!

No melting, just an extra large valve relief installed with out my authorisation!!! Dont know what caused it but the pushrod in number 1 exh has about a 30 deg bend. No relation to piston, was number 4 with the fancy internal machine work. ALL CAUSING AN EXPENSIVE REBUILD, which unfortunately got bigger and bigger. Not to mention the extra $$.
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Old 09-21-2005, 01:23   #5 (permalink)
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Re: Pist n broke!!!

Stuff the pistons, i have just been informed the cast quality of clevo cast headers are not up to the task. The j pipe setup used will now be thrown to the hills and a new tubular manifold made. After another heap of coin, we will have one more prob sorted.
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Old 09-21-2005, 02:53   #6 (permalink)
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Re: Pist n broke!!!

Always the way. In the end it usually works out to be more appropriate option anyway.
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