End spacers
 

When rebuilding the front of the engine how do you determine what thinkness of end spacer you need??

http://www.mazdatrix.com/b5.htm

Also.. will a S4 OMP bolt to a S5 block.. I know that might be a weird question. just curious.

for end play what i do is just use a spacer i have and then torque the front stack and check endplay and go from there.

No a s4 omp will not bolt onto a s5 front cover. the eomp has a diff footprint than the s4 omp

Zack