Is it possible to deck a 455 to 10.6?

I'm asking cause I'm using a set of pistons with 1.720 pin height and I'd like to keep quench around .050 and also have 10:1 compression

 

You need to check the volume (CCs) of your heads.
Assume you are going to ask the machine shop for "zero" deck gap with the pistons and rods you have. Select a head gasket to get your .050" quench. Then do the math or use a comp ratio calculator and include any "dish" volume of the pistons (you didn't say what pistons they were).
If the comp ratio is lower than desired, go to flat top pistons, perhaps a .038 - .040" head gasket and finally mill the heads. Discuss your findings with the shop and let them advise.

Good luck

George

 

I cced my heads they are 85 cc at the moment, I will have them milled to 80cc the Pistons are 13.2cc the head gaskets I'm using are .028 thick and the pin height of the Pistons is 1.72.
if I can deck the block to 10.6 it would put them .020 in the hole, I'm asking if it's safe to take a 455 to 10.6 deck height

 

Yes 10.600 is fine. You'll have no issues.

 

Thank you for the replies, cutlassefi
do you grind custom cams?

 

Yes I offer custom flat tappets and rollers. Let me know, thanks!