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Old 10-19-2019, 04:53 PM
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Bill Eveland Bill Eveland is offline
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Default 70 bonneville i drug home

455, disc brakes, ac, posi rear end too bad the body is rusted. 60k miles . What are these posi rear ends going.for ? Are people still using these disc brakes to convert? Back for 65-70 . Rotors look decent , i know there not available anymore . It still even has antifreeze in the radiator at least. Not sure why my pics are upside down ?
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Old 10-19-2019, 05:09 PM
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My understanding is the rotors were not available for some time, but they are again - Rock Auto shows them from both AC Delco and Raybestos, for under $40/each. Having said that, the spindles and calipers are worth having.

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Old 10-19-2019, 06:10 PM
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Lots of big car parts you could sell.

Does the engine turn?

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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.

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Old 10-19-2019, 06:25 PM
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Not sure yet. Its a 455ho , big bonus. 64 heads , xf block

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Old 10-19-2019, 07:16 PM
grandam1979 grandam1979 is online now
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Are you selling or keeping the engine I might be interested if it’s for sale?

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Old 10-19-2019, 09:37 PM
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Quote:
Originally Posted by Bill Eveland View Post
Not sure yet. Its a 455ho , big bonus. 64 heads , xf block
Hmmm the 64 heads came on firebirds and A bodies. The standard 70 455 head for a big car was a 15 head. Only about 10 horses less, factory rating...

I hope the engine is good!

If you sell the engine, I'll give you $5.00 more than grand Am's bid and you can keep the heads!

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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
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Old 10-19-2019, 10:45 PM
'ol Pinion head 'ol Pinion head is offline
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Good score Bill! Have had quite a few XF's out of 70 GP's, two right now, a few '70 YA/YC's. Have only ran across one XF in a 70 Bonne, all other '70 Bonnes I've pulled orig engines from had the YH 15 head engine. 64 casting heads were just used on '70 model A, B, G model 455's. the first set I ever had was early 80's. went through them, new valve springs, 7/16 BBC studs. 2nd pair I sold bare to Ron J, that was many moons ago. Stock valves are slightly shorter than '68-70 big valve 400 heads. Ended up installing that 1st pair of 64's on a re-ringed '70 T/A YZ engine & put it in my '80 T/A for a while.

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Old 10-20-2019, 08:04 AM
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So this is a 4 bolt main ?

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Old 10-20-2019, 08:14 AM
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Still has correct carb also, 7040268

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Old 10-20-2019, 08:04 PM
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Quote:
Originally Posted by Bill Eveland View Post
So this is a 4 bolt main ?
Yep! I have an XF block as well

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Old 10-20-2019, 08:33 PM
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Good score ! I parted one of these (70 Bonneville 455 XF/64 Convertible) about 10 years ago, mine had the 3.23 posi diff, the frame and floors were rusted out from sitting in the grass.
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Old 10-21-2019, 07:24 PM
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The spindles are the same for disc and drum for 1967-1970. The caliper brackets are the good things to have.

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Old 10-21-2019, 08:36 PM
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1 of 726, 4 door hardtops built with a 455HO. Damn. . . Wish it were mine. Nice find. Love those '70 fullsize Ponchos

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Old 10-21-2019, 09:14 PM
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"My understanding is the rotors were not available for some time, but they are again - Rock Auto shows them from both AC Delco and Raybestos, for under $40/each. Having said that, the spindles and calipers are worth having. "

Anyone got a part number for the disk rotor?

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Old 10-21-2019, 10:18 PM
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Quote:
Originally Posted by rustyrelic View Post

Anyone got a part number for the disk rotor?
Just go to rockauto.com and look them up.

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Old 10-22-2019, 09:38 AM
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The big car ‘67-70 rotors are not available. What is available per everyone’s computer is the 5 on 4.75 rotors from A-bodies. The big car rotors are still unavailable.

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Old 10-22-2019, 12:06 PM
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The protecto plate was still in the glovebox. Its got electronic trunk release also. Ive heard some of that swaps over to a bodies as well as a few other parts.

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Old 10-24-2019, 08:59 PM
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Build it!!!
Leave paint as is,
500+ Pontiac power plant, 4L80E,
Tinted windows, AC.
Drive it!!!

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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.

Shut it off
Shut it off
Buddy, I just shut your Prius down...
  #19  
Old 10-26-2019, 03:07 PM
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Its way to rusted, around the winshield , floors, trunk etc. Its been sitting all the door latches are stuck also. Trust me would love to have it running as is. Roll into a carshow with this beast, moss and everthing on the car in a field of nice cars

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Old 10-26-2019, 05:37 PM
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Quote:
Originally Posted by Ben M. View Post
The big car ‘67-70 rotors are not available. What is available per everyone’s computer is the 5 on 4.75 rotors from A-bodies. The big car rotors are still unavailable.
California Pontiac Restoration has 1969-1970 big car rotors listed on their website - I would assume they would know the difference, but I agree it should be verified before ordering them. http://www.pontiacparts.net/Chassis/default.htm

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