(11-17-2021, 08:54 AM)louie figone Wrote:(11-17-2021, 08:08 AM)ted johnson Wrote: Tom, K Prec. doesn't always have all the rotating parts. A lot of us do not like the tapered end crankshafts, as the 3/8-24 threads are weaker. We want the old style 55/8" to 9/16" stepped crank wit the 7/16-20 LH threads. I have never seen the clutch from an old style West Bend running down the track at 65 MPH with the end of the crank in it. I bet I've seen fifteen Mac cranks broken off at speed in the last 60+years! Also, the single ring piston still has a 1/16" ring. We need thinner rings for less wall friction and more RPM. I don't know where Engine Masters was getting his .030 rings, but that, or Louie Figone's 1mm ring Arias piston was the hot ticket. Someone should resurrect the old Wiseco/Victor/Fuller pistons with the .024 rings. Ted
It sounds like the 820's will be coming back, Liz had a long discussion with Dave Bonbright, he is going to help her get back on track, the previous owners drove US Motor down (pocketed the money and did not deliver product). Dave talked to her about the steel rings, rods, cranks, pistons, blocks, etc. Liz got the cylinder tooling back that Dave designed for the new block. It may take a little time for her to get things going but it sounded like we will be seeing 820's again. Dave is pushing her to use the good rod bolts in all the engines as that is the weak point in a rod that has a removable cap.
Hi Ted,Just wondering what are the good rod bolts you are talking about? Tom Day