Stock comp ratio and head CC questions

[nidyanazo]

For the 1986 model year, what is the compression ratio? 9.0:1? and what is the combustion chamber size, in cc? 58cc? 60cc? 62cc?
I'm rebuilding and want to get these specs so I can have a better Idea of what parts to order.

 

[BlownFiveLiter]

Not sure if the '86 had the E7TE heads like the 87-95, but i'd definitely get some pistons with valve reliefs. The 85-86's didn't have any.

 

[PrimerdFury]

The 1986s had the E6 crappy "high swirl" heads that gave 9.2:1 compression and I have no clue what the stock combustion chamber size was.

 

[nidyanazo]

?