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#1
07-17-2005, 11:40 AM
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Can anyone confirm absolutely that a '17' head is 72cc? I have been going underthat impression, then I saw info that said it is 80cc.
thanks jim |
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#2
07-17-2005, 03:11 PM
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The 17 head is a low compression head. I would say it's at least 80 cc's.
The 18 head on the other hand is probably close to the 72 cc's.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
07-18-2005, 06:31 AM
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The 17 heads are about 75cc, based on the 2 sets I have. Having the heads in question CC'd is the only way to find out for sure. But mine had 9:1 compression in a .060 350. Ran pretty well for a stock rod, cast piston engine.
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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#4
07-18-2005, 08:03 AM
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I have 2 sets as well, I would say around 75cc
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1979 Firebird Trans Am 301/4spd (Now 428) 1977 Firebird Formula 400/Auto 2007 Grand Prix GXP 5.3L |
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#5
07-19-2005, 04:54 AM
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I have had a couple of sets, one measured 81-82cc & the other 83-84cc.
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#6
07-19-2005, 05:03 AM
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No matter what 72-85 is small chamber for a Pontiac head. 92-121 is alot more the norm for the 70-77 stuff.
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Well your kinda cute like a frog, you hop around alot and I would like to jump ya!! |
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