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#1
02-26-2007, 03:47 PM
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So, by the sound of it, this 12-bolt probably came from a '70-'72 Firebird or Camaro. He thought it may have come from a '73 or '74 Super Duty, any chance of that? Thanks all
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'79 T/A 6.6 4-sp, 3.23 , 463" E-heads, 252/262 hyd roller, TII, Holley 830, 8.384 @ 93.86 - 1/8, 12.5 @ 116 - 1/4, 2.035 60', 3800 lbs. w/o driver |
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#2
02-26-2007, 03:57 PM
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I coulda sworn the '71 & '72 455 H-O cars had the 12 bolts in them too.
But I could be wrong about that... |
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#3
02-26-2007, 04:06 PM
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My father was the original owner of our 1970 formula it came with a 12 bolt from the factory.
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old combo 70 firebird 3250# race weight 462 #62 d-ports best 9.60 @ 140.20 naturally aspirated new combo 70 firebird 3280# race weight 523 HiPorts by EIC Motorsports [email protected] N/A |
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#4
02-26-2007, 04:10 PM
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I have never seen A 12 bolt under an original 73 -74 anything. All the SDs I've seen had the 'corporate' 10 bolts.
I am pretty sure all 12 bolts were done, regardless of application, after the '72 model year. Steve Barcak www.pontiacheaven.org "Real Pontiacs only...no corporate nonsense!"
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Hundreds of Pontiacs in Az "Real Pontiacs only..no corporate nonsense!" Facebook- Pontiac Heaven Hosting- 23rd annual Pontiac Heaven weekend- Phoenix pending due to covid Pontiac Heaven Museum in process Phil 2:11 |
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#5
02-26-2007, 06:22 PM
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As Dave said, in Firebirds, 1970 was the only year to be able to have the 12 bolt rear.
So that leaves SD TA's out. Not to say that a 12 bolt from a Camaro wasn't put in it. Or even a Chevelle/GP/A-body 12 bolt.
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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! W.E.C moment "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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