Alright guys, got a bunch of pics below for you. Cleaning up the casting number revealed a hidden digit. The number is "3999289", which checks out on the list linked earlier in the thread. However, the list doesn't say anything about it so any additional info would be greatly appreciated. So, below are the pics and a brief description of what they are.
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Picture of the mains showing this is a two bolt block. I'm fine with that, I've been told you can take these to 500hp easy, and I do plan to convert it from bolts to studs. Also, some day down the road I can convert it to a 4 bolt, but I doubt I'll ever make enough power to warrant doing so.
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Picture of the piston. Not sure if these indents are typical, or if they're an aftermarket design. Would love input on that. I am fairly certain they're aftermarket bought though, based on the shape they're in. Regardless, I will be reusing them as they are in phenomenal condition and I'm also on a budget here.
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Horrible picture, sorry. But I'm just curious what "Hi-Perf" means? I would love to thing it means high performance, but I am skeptical
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Picture of the cylinder heads. Rough measurement showed the intake to be ~ 2 1/8", and the exhaust to be ~1 3/8, now these weren't exact as it was hard to get the caliper in there. That said it is definitely within 1/16 to true size. Are these stock sizes?
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As requested, a detailed picture of the valves springs. I did not realize the springs were a double spring design before. But I know that some engines come stock with double springs so idk if these are stock or not. Opinions?
So that's it, I have some other pictures if any are needed, but I think these cover everything requested. Thanks again guys, and can't wait to hear your thoughts.