Quote:
Originally Posted by Ol' Ron
3 3/8 was the standard oversize back in the 50s/60,s Had several blocks out to 3 7/16. One is stll running in a 40 coupe. For street a thermal expansion piston is probably the best one to run. Sometimes call steel strut pistons , they can be fit with .0005/.001 piston to wal clearance. Another piston kade by Maule)SP?) canbe run with .0015/.002 and comes in 3 5/16 X 4 rings are 1mm, 1mm 3mm. Alittle expensive at $650 a set but the Ross pistons ain''t cheep either I also Have a 296 engine 3 3/8 x4 1.8 the old fassion way with 21a rods. This engine runs an L-100 with steel sttrut pistons and ha sd ove r20K on it now. Doesn't burn a drop of oil.
Gramps
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I was hoping that you would chime in ole Ron. I am working with the 21A rods and this is a 3 3/8 x 4 1/8. I got an eagle crank and Chuck Kuntz is fixing me up with a set of nos std rod bearings. This build is old school for sure. I'm looking for a set of std mains old stock
While looking through the stuff that I got from Flathead George today I found a set of thos 3 7/16 pistons!
Thanks for your input