...so i got my head back from the machine shop, again, after they dressed the valve seats i messed up while porting and polishing, got it back together and decided to check the chamber volumes. got an accurate burette, plexiglas plate, atf, etc. i did them twice just to make sure, as i didn't like the first results, here's what i got:
cyl 1 - 54, 53 cc
cyl 2 - 54, 54
cyl 3 - 52, 52
cyl 4 - 52.5, 52.5
cyl 5 - 52, 52.5
cyl 6 - 51, 51
i was thinking that when the machine shop took 0.060" off the head, they didn't have it level. but, i put a dial indicator on the center of each intake valve and compared that to head surface, and they are all with 0.010" of each other, ranging from 0.510" to 0.520", and not decreasing from cyl 1 to 6 as i expected. i checked the dimensions of the chamber at the head surface, roughly, to see of there was anything wierd there. no appreciable difference.
should i be worried about 3 cc difference between 1 and 6? should i go back in and grind away until they're all the same? given that they seem to be about the same shape now, where would i take material off to get the 51 cc chamber to 54?
thanks for any help....
cyl 1 - 54, 53 cc
cyl 2 - 54, 54
cyl 3 - 52, 52
cyl 4 - 52.5, 52.5
cyl 5 - 52, 52.5
cyl 6 - 51, 51
i was thinking that when the machine shop took 0.060" off the head, they didn't have it level. but, i put a dial indicator on the center of each intake valve and compared that to head surface, and they are all with 0.010" of each other, ranging from 0.510" to 0.520", and not decreasing from cyl 1 to 6 as i expected. i checked the dimensions of the chamber at the head surface, roughly, to see of there was anything wierd there. no appreciable difference.
should i be worried about 3 cc difference between 1 and 6? should i go back in and grind away until they're all the same? given that they seem to be about the same shape now, where would i take material off to get the 51 cc chamber to 54?
thanks for any help....
