Quadrajet casting??... what do I want - Third Generation F-Body Message Boards

Jammin'Trey · 09-15-2008, 10:12 AM

I need to get motor running, so quadrajets are cheap. I have one from a 74-77 GMC pickup. Will this work in my semibuilt 355? I can get a basically new one with a rebuild kit for 75$. Are the metering rods and jets going to be ok for my 355? I know the firs couple casting numbers are 17. I forgot the rest non-CC.

Thanks

five7kid · 09-15-2008, 02:18 PM

The TV cable mounting geometry for your TH700R-4 might not be quite right. Otherwise, it'll probably be close tune-wise. Probably need different secondary rods and possibly hanger, but that's normal tuning stuff.

327_TPI_77_Maro · 09-17-2008, 03:07 PM

Is the GMC pickup carb non APT, or APT? If it's non APT, go for it. The APT carbs are much leaner at cruise and part throttle and are very finicky w/ hot engines. The non emissions non APT truck carbs are much more friendly. 17058213 is an example of a non emissions 78-79 Chevy truck carb.