1995 evinrude 50hp cylinder head help

[southla]

im in the process of rebuilding the motor due to a piston having a hole in it while checking the head it has a slight low spot in the middle of the 2 cylinders my question is what is the tolerance for the head and block deck height

 

[racerone]

Just use some valve grinding compound on a piece of flat glass and refurbish / resurface the head.---------------Easy and quick to do a proffesional job of getting it flat.---------------Removes a minimum of material.-----All outboard cylinder heads warp with time, I have never taken a motor apart where the head was not warped.

 

[southla]

im just gonna bring it to the machine shop 10 bucks to do it

 

[joereeves]

I wasn't aware that anybody did anything for $10.00 any more.

 

[southla]

Lol mr Joe they got a couple that are reasonable over here they charge 25 bucks to bore a cylinder