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 ?

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.

Lots of big car parts you could sell.

Does the engine turn?

Not sure yet. Its a 455ho , big bonus. 64 heads , xf block

Are you selling or keeping the engine I might be interested if it’s for sale?

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 :D and you can keep the heads!

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.

So this is a 4 bolt main ?

Still has correct carb also, 7040268

Yep! I have an XF block as well

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.

The spindles are the same for disc and drum for 1967-1970. The caliper brackets are the good things to have.

1 of 726, 4 door hardtops built with a 455HO. Damn. . . Wish it were mine. Nice find. Love those '70 fullsize Ponchos

"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?

Just go to rockauto.com and look them up.

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.

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.

Build it!!!
Leave paint as is,
500+ Pontiac power plant, 4L80E,
Tinted windows, AC.
Drive it!!!

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

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