Carb ID

[pggto]

I have a carb I got off a 79 TA 400 4 spd parts car ,the engine was swapped to a 455 but I think the carb is original. I'm looking for an 800 CFM canidate for a 455 project, is this a good carb for that application?  The number is 17059263, I looked the number up on Wallace Racing but it wasn't listed. Thanks

[Cliff Ruggles]

That is the correct carb for the Pontiac 400 engine in 1979 with the manual transmission.  Excellent unit, same as the one I use on my 455 up near 600hp.

They are emission calibrated, and just a tad lean everyplace, but an excellent starting point for a real nice HP carburetor....Cliff

[pggto]

This carb has that big horn in the middle that looks like it will interfere with the air cleaner? Is this something that is shaker specific? Thanks

[pggto]

Heres a picture of what I'm referring to.

[4speed]

yes . you'll need the 78-79 W72 air cleaner .  any 400 t/a air cleaner will work but correct looks like this.

looks about the same as the early 70's - 76  but is different.  because of the valve cover vent tube and egr holes.   so 78-9 is correct.




this one will work its 77 W72 and 77-78 L78 400's  79 400 was 4 speed only.



but if you want to ever sell your carb , do let me know.. 

[pggto]

I'm not using a shaker this is for a GTO engine, and I think it will interfere with my air cleaner. So if I use this carb I would need to put a hole in the air cleaner base to clear this tube? I'm using an aftermarket aluminum air cleaner.

[4speed]

or find a olds 403 carb.   or cut the tube , Ive seen that. but would hate to see that happen to that carb.
but the tube should be up in the air cleaner so dirt wont get into your carb.

[Cliff Ruggles]

The vent tube MUST extend inside the air cleaner base, or it will vent to the outside (dirty) air.  A corresponding hole is required, and sealed up to keep dirt out of the engine, just like the factory set-ups.....Cliff

[pggto]

4Speed, I sent you a PM

[4speed]

email and PM'ed ya back.