I have a set of 2.0 heads I am going to send out to be rebuilt . I also have a set of 1.7 heads ,i remember hearing that the 1.7 rockes are better?? Right or wrong ! If there are diferences in the 1.7 rockers, how do i identify which ones I have . I plan to run swivel foot ends.


Dave

The only difference is that the hole where the adjusters go is smaller. I believe it's 8mm on the 1.7 ones, and 10mm on the 2.0 ones. Which means that the good swivel-foot adjusters (the real 911 ones!) will only fit in the 1.7 rockers.

--DD

YOU are correct, sir. (Ed McMann to Jonny Carson) You will have to trim some off the rocker to install the Porsche swivel feet adjusters. Check Jake's site I think he tells you how much to trim off.