I bought and used a .043,.043 with a 1/8 inch low tension oil ring for my 518 C.I. 400 block current bracket motor with a vacuum pump up
I'm not sure what current trick racing sizes are available now as I built that motor two winters ago shruggy
I like it a lot, runs good , makes a lot of power boogie

Last edited by Cab_Burge; 10/17/20 10:07 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)