92civy

hey guys i was owndering if the 400M engine will fit in a fox body? i want to do a carb setup and i am still deciding what engine. i want torque, and tons of it, i think the 400M will do good. i could get a 78 400m for like 400 CAD full but no mani.

wat do you guys think?

my77stang

do it!!!!!!!!! plenty of cubes, the heads are basically 2 bbl C heads which outflow stock windsor heads easily, and it would be something different!!!!!

i have a mild flat tappet 351m/400 cam that was cleaned up at work and wrapped in plastic. i think its like .465 or something. its used, and you would need new lifters but its free if you want it

92civy

what kind of mods could i do to this engine?

my77stang

anything you could do to a 302. dont let the fact that its an odd ball scare ya - parts are available and with a mild cam, decent intake, something like a 650 4 bbl and some long tube headers you'll be tearing *** in that damn thing

92civy

well intake?? what would be a great free flowing intake for a 400m? this is what i think will be hard the research. like not many people on here have the 400m i think, so feedback is what i need. and long tubes are a for sure, but what long tubes a set for a 351 in a fox box? will those work? like a 1 3/4 or 17/8?

92civy

well i am jsut looking through some partsfor this engine and they seem to be quite reasonable for parts ($ wise). so i think i am going to go this route.

mod info needed?

my77stang

im pretty sure there are 351C swap headers available for the foxes, those should work just fine.

edelbrock #2171 is a performer 4bbl intake, idle-5500...... cant find a performer RPM which would be better.
weiand #8010 is a action +plus intake, idle-6000...... this is definately the intake to go with.



add that cam i offered you for free, and a decent 4bbl carb. like i said before a 650 would be excellent. plenty of oomph with out being too damn big.

92civy

stock block 1.7 rockers 2bbl heads

this is what the gentleman says the enigne has, it apparently has under 60k on it.

my77stang

yay for ASP500 errors

my77stang

all "M" heads are "2 bbl" heads, which outflow the GT-40 heads[8D]

http://www.allfordmustangs.com/Detailed/630.shtml