Need to know what engine I have.

from my knoledge 351c acept small block motor mounts @ bell housing pattern 351m@ 400 acept 429@460 bellhousing pattern and their own motor mounts 351c motor mounts should bolt too the block with 2 bolts n a vertical position while 351m 400 bolt to the side of the block like a small block chevy hope this may help

 

Don't know why you bothered with separate pics for the 351M and 400, they're the same engine externally. The only difference is the crank and pistons. Everything else is the same. If the original valve covers with the emissions sticker is gone, only way to tell one from another is to remove a spark plug and measure the stroke, or drop the oil pan.

 

You are correct on the 351C info

From reading the information you wrote about your own car, how bout starting a seperate thread and giving up some photos

 

Well I felt the need to show they were the same externally.there two differant angle shots i guess i could'a lumped them together.

i think everyones curious as to what he has.

 

Your telling me there is no possible way to determine the difference besides year?

 

Yes, but you got it bassackwards You showed the clean, good lookin motor (351M) as the better of the two, compared with that dirty, recently pulled junkyard 400. (although someone DID improve on it with that Holley 500 carb

 

What happend to Shaneb He asked for help and has us curious ? but still no pics.

 

Yeah, I had a 351C ina '68 Fairlane, that I was running the factory c4 that came in the car, that was behind the 302 that came in the car. That car was an original 67,000 mile car, I was about 20, and couldn't wait to tear it apart. I am appauled at the things that I have done to good original cars in my youth.

Why hasn't the guy posted a picture of the engine and transmission yet? That would solve the mystery.

 

I figure it would be solved in about 1 second

 

I know what it is, its a.....!!!!!!!!!!

 

Can't figure out why everyone's so anxious to see a 351M

 

whats wrong with the 400 M? never had one i dont think. wait had a 78 LTD that had a 400. was not bought for hot rodin. it had 23,000 miles and was cherry! paid $200 replaced A/C for $350.00 and sold for $2000.00.

tell me more about 400 M.

 

you never know it could be a 429 or 460 or ?

 

I heard that you cant make any hp with the mod motors

 

You can't with the 351M, the 400 has no problem with upgrades. Some add the "M" suffix, some don't to the 400. But whether it's there or not, everyone knows what you're talking about. Only certain people nitpick over the "M" added to 400.