7m destrok with a diffrent block

themadhatter

Member
Jul 5, 2006
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i hope some one will corect me if i'm wrong but if i remeber right the 7m and 5m share the same block just the head ,rods,crank and pistions are different
 

Poodles

I play with fire
Jul 22, 2006
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yes, but the 5M crank doesn't work so well...

but yes, IIRC the 7M head bolts onto the earlier M blocks... (much like the 1J and 2J)
 

supramic

New Member
Feb 4, 2006
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magnolia DE.
tissimo said:
yea if you change the block its not a 7m anymore
the crank is to short aron was building a 2.8 l 7m using the 5m crank. aron had to extend the 5m crank so that it would fit the 7m components


the two blocks that i was looking at is the 4m sohc which is a 2.6L and the 5m 2.8
does anyone know what the rods/piston from the 5m can take. from what i know the 5m has a moderatly low compression like a 8:8.1 or some thing to that effect so im thinking if the the rods can take 4oo then i would just need to go with piston