Compression help !

I Have 1986 460 out of a motor home stock bore, crank, rods and pistons, I pulled the d3ve heads off and put c8ve-e heads on. The heads have cobra jet size valves 2.250 intake 1.760 exhaust , they been milled 0.10 thousandths I put stock fel-pro head gaskets on I think there 41 thousands compressed . Just kind of wondering around what my compression might be?

Thanks for any help!!!

ctdck wrote:I Have 1986 460 out of a motor home stock bore, crank, rods and pistons, I pulled the d3ve heads off and put c8ve-e heads on. The heads have cobra jet size valves 2.250 intake 1.760 exhaust , they been milled 0.10 thousandths I put stock fel-pro head gaskets on I think there 41 thousands compressed . Just kind of wondering around what my compression might be?
 Thanks for any help!!!

Probably around 8 to 1.

rmcomprandy wrote:

ctdck wrote:I Have 1986 460 out of a motor home stock bore, crank, rods and pistons, I pulled the d3ve heads off and put c8ve-e heads on. The heads have cobra jet size valves 2.250 intake 1.760 exhaust , they been milled 0.10 thousandths I put stock fel-pro head gaskets on I think there 41 thousands compressed . Just kind of wondering around what my compression might be?
            Thanks for any help!!!

Probably around 8 to 1.

Wouldn't have been around 8 to 1 with the D3VE Heads?

Probably about 9.2:1

In the 9-9.5 range depending on head actual CC.

Bet on closer to 9

I misread -- I was reading D8VE heads like some marine engines had.

"86 motorhome short block = 22 cc oblong dish pistons about .040" down the bore; (about 10 cc).

11.5 cc head gasket

about 76 cc combustion chamber head

942 cc cylinder

The math says about 8.9/1 ...

Thanks all of you for the help