289 non-Hi Po Heads?
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Too Much is ALMOST Enough
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289 non-Hi Po Heads?
I found 2 sets of 68 (I think) 289 heads for $100. One set if cut for 1.94"/1.60" valves and the other set is stock. They are both bare castings, are they worth the money? How high would my compression be on a stock 89 HO shortblock?
Thanks,
Frankie
Thanks,
Frankie
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They say your life flashes before your eyes when you die, why not make it worth watching!
They say your life flashes before your eyes when you die, why not make it worth watching!
is doing your girlfriend
Joined: Dec 2004
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My brother was running the same heads on his motor. IIRC his were decked a little and was nearly 11:1
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Thread Starter
Too Much is ALMOST Enough
Joined: Aug 2003
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How much is a little? I had a 95 GT that had 289 Hi Po heads and I was told it should be around 10.5:1. Are the combustion chambers the same for the Hi Pos and non Hi Pos?
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They say your life flashes before your eyes when you die, why not make it worth watching!
They say your life flashes before your eyes when you die, why not make it worth watching!
is doing your girlfriend
Joined: Dec 2004
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not sure. as a matter of fact im not even positive that they were decked.
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Governments are instituted among Men, deriving their just powers from the consent of the governed, — That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it
The lost pony
Joined: Dec 2003
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From: spring hill
they are worth it . the chamber I think is the same on the hi po. should be 10 to 10-1/2 . that is worth 25 to 30 hp over stock. I had a 77 mustang and had been to the track many times it ran 14.10 I put 289 heads with the knot taken out. it ran 13.72 no other changes.
Thread Starter
Too Much is ALMOST Enough
Joined: Aug 2003
Posts: 5,670
Likes: 0
they are worth it . the chamber I think is the same on the hi po. should be 10 to 10-1/2 . that is worth 25 to 30 hp over stock. I had a 77 mustang and had been to the track many times it ran 14.10 I put 289 heads with the knot taken out. it ran 13.72 no other changes.
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They say your life flashes before your eyes when you die, why not make it worth watching!
They say your life flashes before your eyes when you die, why not make it worth watching!
