getting back to the 1970 i just purchased, previous owner stated it was a 327, i do have the casting # 3970010 which is a good block.
indicates a 327, 302, or 350. front pad reads K02-05-TYZ, also
on front pad is T-6B512811, rear ledge by casting # is K2
i do have the larger camel hump heads 461 OR 462, did not
remove valve cover to check. any help???? car runs great
just wanted to know a little more, thanks

 

K0205TYZ...
K = McKinnon plant
02 = February
05 = fifth day of week
TYZ = 1975 350, 165 h.p., C-10 to 2500 truck engine.
Previous owner was either spoofing about it being a 327, or just didn't know what he had.

 

thanks camaro 69, anymore hp. with those heads, has small cam, dont know what, headers, heads ported and polished, thanks

 

Those heads will definitely gain you some HP over factory specs. Not sure how much without knowing what cam you have.