what engine is this????

[92clevstang]

so i got a junkyard motor but was lookin up info and said it was a 400 the block casting number i found right above the starter are d1ae 6015 a2c the intake casting number i found was d3ae 9525 ba the heads have a 2 stamped on the corner of them any help in identifying this block would be appriciated oh and i pulled it off a ranchero if that helps the block looks like it was worked over at some point

 

[robbz28]

Im not positive, but sounds like you have either a Ford 400 or a 351M on your hands. A late 70's creation of ford to replace their big blocks in most vehicles. The 351M was a destroked 400, same block, but they have C6 bellhousing patterns. Do a google search on the ford 335 series engine family and I think you will find your engine there.

 

[robbz28]

Correction...I found your block...seems you have a rare one there, a FMX 400....here is a link.

Block 400 FMX - Clevelands Forever!

 

[92clevstang]

yeah i saw that one too but mine doesnt look like that though the same casting numbers but the bellhousing bolts look different and it doesnt have that open space from behing

 

[92clevstang]

ive been searching all over the net so far all i got is that its a 400 or a 400fmx

 

[robbz28]

Pics! Pics!

 

[92clevstang]

heres some more in a minute

 

[robbz28]

Hmm, strange, it has the FMX casting numbers, but not the dual pattern. I stand by my original guess that its a 351M or 400M.....maybe somebody else can shed some light on the subject.

 

[92clevstang]

 

[92clevstang]

 

[92clevstang]

here are the rest of the pics

 

[92clevstang]

so ive concluded that this block is a 400 im going to check the stroke tomorrow to see if its a 351m or a 400 the block casting number that i searched keeps showing as a 400fmx but i know mine isnt because of bellhousing pattern ive read that these motors have a lot of torque so my plan is to freshen her up and put her in my 92 mustang if any one else can help to see if this a 351m or 400 i would appreiciate it and a list of basic mods for the engine(cam heads intake exhaust just for a start) thanks for the help

 

[muh'stang]

you imperatively need zero deck pistons and a straight up timing set. The pistons are way down the hole and the cam timing is retarded 4 degrees from factory.
I posted this thread years ago over here on the truck site
need HP estimate for 400 - Ford Truck Enthusiasts Forums
read post 1 and 4...a real easy combo and some real nice numbers.
This guy is the 335 series guru TMeyer, Inc. Precision Automotive Machining

 

[92clevstang]

sorry for sounding like a rookie but whats zero deck pistons and straight up timing set