MFI Intake question

[Phrog]

To All:
Can anyone advise if the intake stacks from a 72T 2.4L MFI engine will fit on and be usable on a 71E 2.2L MFI engine?
Thanks,
Kevin

[356RS]

The 72T plastic stacks will bolt up to the 2.2 TB's but you will end up with a 31mm port at the bottom of the plastic 72 stacks mating up with your larger 2.2 TB's ports.

[RWebb]

also, plastic = fire danger

Mg stacks can be hogged out BTW

[Jeff Higgins]

Do you mean just the stacks, or the stacks and throttle bodies? It will all interchange, either as a whole or just the stacks, but as Mark points out, there are size differences. You can bore T stacks and throttle bodies larger for use on an E, or an S.

Actually, Randy, the "fire starters", or cold priming nozzles on the mag stack air cleaners pose the greatest fire hazard. The plastic stacks move the cold start nozzles down onto the stacks and greatly reduced the incident of fires.

Plastic stacks can be bored just as easily as (perhaps more so than) the mag stacks. Many shops will do this for just a couple hundred bucks. I had mine bored to "S" specs by a local Pelican who made himself a tapered reamer for the job. If you don't mind shipping them, Kevin, I can put you in touch with him.

[RWebb]

agree re the ignition source

but once a fire is started for any reason, plastic is a good fuel

[al lkosmal]

Greetings,
here are the dimensions of the bore diameters for the various MFI components.




Note: the top stud spacing of the 1969 T'bodies are unique at 66mm. From 1970 on they are 72mm. So you cannot interchange the 69 t'bodies with other year stax. however the assembly of 69 t'body and 69 stax can be interchanged with all other year engines. The 70-73 t'bodies and stax are interchangable with each other.


regards,
al

PS: although it's a bit harder to get started....magnesium burns brightly. ....don't ask me how I know.

[Flieger]

Originally Posted by RWebb

also, plastic = fire danger

Mg stacks can be hogged out BTW

Sooooo......

Magnesium is not a fire danger? I think it was Piers Courage who was burned to death in his Magnesium Honda F1 car (a Magnesium tube full of fuel with an engine in the middle).

And I believe Magnesium is a component in both road side flares and tracer bullets (along with White Phosphorous).