Does anyone know if they make a lower intake manifold to fit a pontiac 400 so that it can be fitted with a Tuned Port Injection setup. And if so what else would need to be changed along with the lower manifold? To give a little background info I"ve got an 81 trans am I"m putting a TPI in (it has a 350 from a 74 truck). Unfortunately I'm not running cats or the OE emissions so NH law won't let it pass an inspection anywhere ( well not anywhere ) So i'm looking into a '79 Trans Am where I won't need anything as far as emissions goes. And to make it a little easier on myself (rather than swapping, exhaust, radiator, engine mounts, transmission bell housing, etc) I was wondering if they made anything to mount the TPI to a pontiac 400. Thanks in advance for any input on this one.

 

not gonna happen

pontiac 400's are totally different from a small block chevy. its gonna take a whole new custom made base manifold to fit a 400 pontiac. and no one makes one that i am aware of.

 

Try Holley or Edelbrock. They now make EFI manifolds for all type of cars.

 

that's what I was wondering. (hence I asked the question because I know the lower manifolds aren't anywhere near the same). I've checked out Edelbrock and have had no success. I work in a parts store and I close quite often so I have enough free time to do alot of research on this kind of stuff. But I wasn't able to find much. I was just interested in seeing if anyone else had had the same idea. I'll post back if I find anything.

 

I'm pretty sure someone is making a FI manifold for Ponchos. You are probably going to have to chase down the few guys that specialize in them, or have a carb manifold converted for use with injectors.

 

Try looking at a High Performance Pontiac mag. There are alot of shops that maybe able to help you out. It is a long shot but atleast it is a start.
Laters,
Conrad

 

Did the 301 survive into 1981? If so, that can be your distributor.

Fuel injector rails are going to be the tough part from what I see, you could perhaps use a CCC Q-jet as the throttle body, or, a TBI off of a car or truck.

Just some thoughts...I'd like to convert my Olds to EFI at some point, no real easy/cheap way to do it.

 

Check this out: http://www.customefis.com/portefi.html

If he can do it for an AMC, why not Pontiac? It states "Prices for my custom port EFI systems vary, but typically are $1500-1700 depending on the availability of the intake manifold for your engine and the type engine you have."

That is a complete price, E-mail him and see if an special packages can be worked out if you already have some of the components, like ECM and harness from a donor car.

Good luck, Ed.

 

you can convert a standard manifold to a EFI setup up but its not TPI.....

hogan sheet metal intakes are really nice but very expensive

 

Try this Edelbrock Pontiac FI Competition Manifold

 

thanks for your replies. I've been putting some effort into a TPI setup over the past 6 months and that's what I was hoping to get to work. It doesn't look that promising but I thought it was worth the investigation. I'm still not sure what I plan on doing. I'm still trying to see if NH will pass my vehicle (no OE emissions but newer emissions, but no air pump or cats). Even if I put the cats on I've been told I probably won't pass but I want to pass it by the state official in charge of all this. I can get stickers easily enough but I prefer to try to run legally as much as possible. Its either that or I'm gunna go looking for a 79 or older car. I do appreciate all the responses so far. Thanks I'lll keep all of you up dated as I keep on searching