Dinged deck surface - how far down can it be machined?

BuickMike

Money pit
Joined
Jun 7, 2001
So last night I flipped my block over on the engine stand and found three nicks in the deck surface. unfortunately one is right where the head gasket ring goes. I guess it bumped into something at some point. I've been wheeling that thing around for over a year now and am finally getting around to assembly. I was so pissed off last night that I was damn near ready to part out the car, but hopefully this will not be the end of the world.

The from what I can tell with a probe the depth is 1/2 a fingernail thickness, so I'm looking at .010 - .015. How far can I deck the block before I need to worry about having the heads machined to still sit flush with the intake manifold? I have a brand new set of Champion Irons and I really don't want to do that. I'm not worried about piston clearance since my Wiseco's are lower compression height than all the others.
 
........ How far can I deck the block before I need to worry about having the heads machined to still sit flush with the intake manifold? I have a brand new set of Champion Irons and I really don't want to do that.............

You do not need to machine the heads, have the intake milled to fit if you have the block decked.

This is a common procedure as we final fit the intake for proper alignment when assembling an engine, and many times it needs machining for proper port alignment.:)
 
Top