Hello everyone, I still get a little confused on the location of the ta part no. 1559 grooved cam bearings for my .30 455. I thought I understood that all bearings are installed at three o'clock when facing the front of the motor. What confuses me is I hear to make sure that the bearing aligns with the 3'0 clock positon as well as another position (ie seven o'clock). With one hole in each bearing how does this work? Yardley, you have helped me on this before but my computer crashed and I lost your notes that explained all of this. I tried to send you an email today but I was still having problems. Secondly, I am running ta forged pistons. I also purchased chrome moly rings. That is the description of the rings in the parts catalog. Part no. 1636. Are this file to fit rings? If so what is the best end gaps? I have read that the second ring can be opened up more. Thanks a lot, Jon Thomas, jthomas1248@satx.rr.com San Antonio, TX.
If you are using the grooved cam bearings with 2 holes per bearing, you wnat one hole to be somewhere between 3 and 4 o'clock and the other hole to be around 7 to 8 o'clock. If the bearings have only one hole, (but are grooved on the back side) then position the oil hole at aprox 3 to 4 o'clock position. There is no such thing as a chrome moly ring set. What you have is moly rings or plasma moly rings. Top ring gap can be .018 to .020, second can be anywhere from .014 to .024. Jim Burek P.A.E. ENTERPRISES
