Will the Piston Hit the Head

[nivvy]

I am getting a good deal on eddy stage 3 ported heads and my question i will the piston hit the head and what would my compression be...

http://www.csgnetwork.com/compcalc.html

4.375 bore
4.150 stroke
4.380 head gasket bore
.065 head gasket thickness
84 cc's
-6 pistons
.013 above deck

i guess depending on the gasket thickness i use will determine if the piston hits....I believe the .013 is above the deck...
dont I want .040 minimum between the piston and head to achieve good quench...

[Mopar God]

Stroker,

With steel rods, your quench distance should be fine @ 0.052" calculating your +0.13" deck and 0.065" head gasket thickness.

I have run steel rod engines as tight as .025" although it is not recommended...Robert

[matt63]

I did some research on this when I built my 408 stroker. I believe that 0.035 - 0.045" is the goal so "zero decking" gets you there with std head gaskets.  (0.035" is the minimum)  Any more than clearance than this and the benefit of quench goes away fast.