can you combine a m52 and m50 for better

[Northern]

m50 and m52 both share the same 84mm bore. the m52 crank has a longer stroke then the m50, but both share the same rod length, the difference between the crank stroke is made up in the pin height in the pistons. if you were to bolt the m52 crank in the m50 block, it would raise the height of the piston at tdc, increasing compression. i dont know how piston to valve clearances would be but i believe people have done it using custom size mls's for a slight bump in comp.

This. Or have larger valve reliefs cut.

[emmanuel.dlc]

m50 and m52 both share the same 84mm bore. the m52 crank has a longer stroke then the m50, but both share the same rod length, the difference between the crank stroke is made up in the pin height in the pistons. if you were to bolt the m52 crank in the m50 block, it would raise the height of the piston at tdc, increasing compression. i dont know how piston to valve clearances would be but i believe people have done it using custom size mls's for a slight bump in comp.

you can't use m50tu rods (140mm) with 84mm crank without using custom height pistons.

i am building a m50b28 right now using the following parts:

84mm b52 crank
m50tu pistons
135mm rods

this should yield 209.55 assembly height .45 under the deck, with stock .070 gasket the CR will be at 11:1 with a rod ratio of 1.60

use this link for reference: http://www.zealautowerks.com/index.h...00,7000,1500,0

for the new CR change the crank and rods numbers for 84 and 135 and you will see the new number.

hope this helps

[10Toes]

84mm b52 crank

?

[emmanuel.dlc]

hahaha

b28 i meant :D