[Tellyshavilli]

Originally Posted by SD455DJ

Ross, Yes, drivers side boss milled off...but I don't know if all SR 9792506 blocks were that way. Maybe for the driver side long branch exhaust manifold clearance since it dumps directly below the center exhaust ports?

Dennis

Interesting theory about the clearance for the exhaust manifold on the driver side Though over these many years of dealing with Pontiacs 69 TAs & , Ram Air cars I’ve never heard of anybody having a problem with the exhaust manifold using 70+ blocks, and I also put a 1971 WC 455 HO motor in a 69 Trans Am with the long branch manifolds and never had a problem back in the day

[keith k]

Originally Posted by 71GP76TA

Aside from the customizing. The car appears to be pretty original. Lifelong CA car that was sold new in Los Gatos CA.

Attachment 604166

Cool - great find!
I remember looking at a white '71 T/A for sale 25 or so years ago, that was halfway between San Diego and LA. It had all of its flares and spoilers glassed in exactly as your new one does.

[71GP76TA]

The block in question. No... I did not sand it

[71GP76TA]

Another pic after some carb cleaner.

[71GP76TA]

[71GP76TA]

[71GP76TA]

[71GP76TA]

[71GP76TA]

[71GP76TA]

Carb comes back as '70 400/455 California. Original to the car?

http://www.wallaceracing.com/cgi-bin/gmcarb.cgi

[johnta1]

Congrats on the TA!


What is the cowl tag date code?

[johnta1]

Carb comes back as '70 400/455 California. Original to the car?

I think it is a correct replacement for the original carb?
(7040573?)

[71GP76TA]

cowl tag

[Formulabruce]

FWIW.. At my dealership there was some paperwork with SR blocks indicated for warranty ( Not OTC)
. It stated that the dealership was responsible for stamping the car VIN or indicating it as such for remainder of warranty period. We never did one I know of. We did a bunch of SR swaps in later 70's and early 80's . Pontiac 400, 265 and 301 cars and chevys with bad oil from factory. Gm got smart in later 70's and stopped shipping whole engines, and in many cases shipped a SR block with cam and freeze plugs, and a crank if needed. Most of the SR blocks to replace a 70 ( 914) block , that I have seen are 72 , 73 blocks .

[Kenth]

Originally Posted by johnta1

I think it is a correct replacement for the original carb?
(7040573?)

17054908 is a Delco 24-6053 service replacement unit for 1970 A-ASP 1970 CALIF. M/T & A/T 400-455 cu.in. (non-RA).

[71GP76TA]

Originally Posted by Kenth

17054908 is a Delco 24-6053 service replacement unit for 1970 A-ASP 1970 CALIF. M/T & A/T 400-455 cu.in. (non-RA).

I should have kept the carb from the last '70 I had. It had the correct Ram Air 4 speed California carb laying in the trunk.

[Baron Von Zeppelin]

Did you also check the block in the upper area of the passenger side machined face - usually along the outer edge of the machined face.

And some have been up along where the cylinder head meets the block.
But out at the far edge away from the block code.

[Tellyshavilli]

Originally Posted by Baron Von Zeppelin

Did you also check the block in the upper area of the passenger side machined face - usually along the outer edge of the machined face.

And some have been up along where the cylinder head meets the block.
But out at the far edge away from the block code.

I’ve only seen the VIN stamped in that location on Gtos that were built in Fremont, though it is a possibility that this is a GTO block but I think it’s the original one out of the Trans Am

[Baron Von Zeppelin]

Also some Atlanta and (later) Framingham hit them there too.
Check all the front face on passenger side then call it done.

I don't have any idea how Van Nuys did them, but check the whole face on passenger side just to cover all the bases.

[71GP76TA]

Originally Posted by Baron Von Zeppelin

Did you also check the block in the upper area of the passenger side machined face - usually along the outer edge of the machined face.

And some have been up along where the cylinder head meets the block.
But out at the far edge away from the block code.

I need to get it over to my shop and get it up on a lift. Do that when I get caught up from the holidays and the weather clears up.

I do think it is the original engine. I'll check the trans and rear axle too once I get it up.