bottom end rebuild
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bottom end rebuild like many others I'm planning to boost a high mileage 5.3! I intend to port the heads add a turbo grind cam, upgrade the springs and pushrods the basics I guess. so my question is how essential is it for me to upgrade the rings and bearings(bottom end) ? keep in mind although the motor has high miles I bought it running with no knocking,great oil pressure and the cylinders look good.
like many others I'm planning to boost a high mileage 5.3! I intend to port the heads add a turbo grind cam, upgrade the springs and pushrods the basics I guess. so my question is how essential is it for me to upgrade the rings and bearings(bottom end) ? keep in mind although the motor has high miles I bought it running with no knocking,great oil pressure and the cylinders look good.
I am a little **** with the bottom end (no pun intended, lol). I haven't had much luck with good used engines, and rings and bearings are so cheap I break the glaze, gap new rings, install new bearings, etc. The cam bearings I cant do at home, I know a lot of guys run them, although they look pretty ugly, lol. Your talking prob $200 to do it, minus cam bearing install. Even on gummed up engines I have seen some good looking bearings, so at least $50 Mahle rings and a hone. I don't like pulling engines after their installed, lol.
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This particular engine did in in fact have just over 200 on it. But like I stated before I brought it runnin gand pulled it myself so I know it had good oil pressure and compression. I guess I'm more or less up In th e Air about is it worth the extra money to dig into the short block
If you're ambitious enough to go turbo, you'll probably also want to push the limits of a setup and tweak it here and there for gains. It's probably best to take care of the ring gaps from the start so they're not holding you back later or causing issues. As for the rest of it, the new train of thought seems to be "touch as little as possible."
This particular engine did in in fact have just over 200 on it. But like I stated before I brought it runnin gand pulled it myself so I know it had good oil pressure and compression. I guess I'm more or less up In th e Air about is it worth the extra money to dig into the short block
