My 235 is from a ‘59 passenger car, 135HP and is really peppy. Your ‘58 has 145HP so it should be even better. Even your good cylinders are really low at 76 lbs. According to a 1961 Motors Truck manual, a compression ratio of 8:1 should have a compression of 140 lbs. Your engine, if it truly is a ‘58 235 has a ratio of 8.25:1. Rebuild it and I believe you’ll be fine.
Let me ask you this Phil. I`m delayed with a leak down test and wondering how well that will narrow down my problem. With the compression being low and lower. I`m thinking whatever repairs the engine would need ,the engine would have to be removed. Debating on just lifting the engine out and not doing a leak down test. thoughts?
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel
