Be Careful of What You Let Get Away

I’ll be able to tell you here in a few more weeks. I’ve got four (IIRC, I’ma borderline 318 poor as of late) regular hydraulic roller blocks I’m going to bridge mic’ measure the and strokes and TDC heights to see the actual deck height distance from crank centerline before disassembly So far, I can’t see any obvious differences from the bottom end. I also plan on doing some hardness testing to see if the industrial blocks have higher nickel and tin alloying content. I’m going to check that against a particularly thick 1975 year casting truck block and a regular 1973 casting block. If anything stands out in the webbing or otherwise as obviously different, we’ll know. I’m going to post pics of similarities and differences regardless.