Quote:
Originally Posted by Tomguy
The only thing you need to be aware of is if the 75 has hydraulic ball studs. The cam profile is completely different if so and will not work with mechanical studs. They are likely both the same 57/58 series cams (the numbers on the back of the cam circles).
And if the 75 recipient has hydraulic studs, swap the mechanical ones. You can't go the other way though.
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Thanx for all responses so far. I have a 53 cam in the 73 and 103 cam in the 75. 75 has a hole drilled in the stud as if its hydraulic, the 73 stud looks like mechanical as have no oil feed hole, in this case. 75 is a US model and the 73 is a Japanese market car. 73 also has rocker arm lock spring structure and 75 has no locks. Can I change the rockers from 73 into 75 as the 75 rockers are also showing abrasion. Thanx all in advance for any helpful comments.