Quote:
Originally Posted by Frank Reiner
Re: Cylinder heads
There are differences in valve stem & guide diameters, and in valve head diameters. There are no external clues for these differences.
Re: Camshafts
There are seven different exhaust cam code #s, two of which were USA 1973/74 only.
There are five inlet cam codes, two were 1973/74 USA only.
The code #s are stamped into the rear face of the camshafts, and relate to the number of journals on the shafts.
Exh.: 24, 57, 71, 78 [20, 95]
In.: 25, 67, 74 [33, 91]
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Thanks for this. I have read some older threads you were on and tried to see a code on my exhaust cam using a flashlight and a small mirror but could not see any markings. The rear of intake is of course hidden in the tower when installed.
I have read that Euro cams have a different profile than USA cams, high/low compression engines and should not be mixed and matched. As stated previously, I am not convinced that mine have not been changed and want diehard evidence that the correct ones are installed, I might as well be from Missouri in that regard.
It sounds like having cams installed with the wrong number of journals would not be good. I'm assuming that the numbers in parentheses are the '73/'74 USA ones? Do you know of a table online or do you know which ones are correct or compatible with a late 100.988 Euro motor? Thanks for your time and knowledge.