well broke down the motor and had some issues. saw right off the bat when striping gasket junk off the intake and noticed exposed egr ports, turns out the intake once pulled is an edelbrock 2121 performer 289. so thats going bye bye as it was designed for the earlier non-EGR heads. i also measured the heads (78' from the D80E casting) valves with a mic 1.803/1.472 which i know is slightly off from the bore measurements which were 4.040, 4.042, 4.040, its close but for a cheapo kobalt its ok, will need to borrow a more precise one before going any further. The heads have no casting numbers other than the fomoco oval and the date codes 8K27 on one and 8K28, there was a letter "R" engraved on the backside of the head?
the bores look good, nice n clean no lip. the cam is a mystery cam unless i put a dial indicator on it since the cam grind on the back is 01289 with the standard CWC casting on the front section of the cam (hydraullic) . The full block casting number is D4DE-6015-BA ______Z then below the date 6L17. pretty much got this thing figured out except the "Z" just thought id keep those who helped so far posted with an update.