Bronco Forum - Full Size Ford Bronco Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
25 Posts
No, those are for a Cleveland

http://www.summitracing.com/search/?keyword=351M pistons&dds=1
These are the ones they offer for the 351M.

There are too many differences for much interchangeability in those two engines.

BTW, I would go w/ a 400 if you can find a crankshaft. Since you are already replacing pistons, you could add an easy 49ci. by adding that crank and 400 pistons. It has been my experience your gas milage will be the same.
 

·
insanity & senselessness
Joined
·
1,296 Posts
Discussion Starter #3
No, those are for a Cleveland

http://www.summitracing.com/search/?keyword=351M pistons&dds=1
These are the ones they offer for the 351M.

There are too many differences for much interchangeability in those two engines.

BTW, I would go w/ a 400 if you can find a crankshaft. Since you are already replacing pistons, you could add an easy 49ci. by adding that crank and 400 pistons. It has been my experience your gas milage will be the same.
tnx

about the 400 i have done it recently, you can see my build. But this guy don´t want a bigger engine, so we are seaching for high CR 351 pistons.

BTW: I know to build a HiPo 400 is easier than a 351M
 

·
Premium Member
Joined
·
23,549 Posts
put on some closed chamber heads, the CR will defiantly go up with these.
 

·
OMF
Joined
·
2,957 Posts
Great site SW!

If I were keeping the 400 I would definitely go that route!
 

·
insanity & senselessness
Joined
·
1,296 Posts
Discussion Starter #9


that is the new proiect

a 78 bronco with a MWM 4 cilinder diesel engine

the owner got a 351M that must to be rebuilded.


First he don´t wan´t to build the engine as 400 but I don´t know now.
 

·
OMF
Joined
·
2,957 Posts
I will be going with a 6BT in mine, possibly a Powerstroke, I am a bit up in the air at the moment.

I can pick up a '97 F350 for ~$1500, so that may be the way I go.

Then I get the ZF5, D60 front and the engine.
 

·
Premium Member
Joined
·
4,162 Posts
so we are seaching for high CR 351 pistons.
I don't recall ever seeing any 'high compression" pistons for the 351m...but if there ever were it would have been decades ago when Fed Mogul and TRW still made all sorts of usefull aftermarket piston designs that they stopped producing long ago.
 
1 - 13 of 13 Posts
Top