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Old 02-20-2012, 07:01 PM
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Bluethunder3320 Bluethunder3320 is offline
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Originally Posted by toystory_4wd View Post
Entirely depends on when valve flutter presents. With these engines, I don't know yet. The valvesprings are still stock and probably getting tired. I may replace them in the near future, with new springs of the stock rate. Somewhere between 5k-6k RPM is a pretty reasonable expectation. The internals of these engines are fairly impressive and the flywheel is a big cast iron sonofagun. I would definitely call the connecting rod the weak link. However, as long as valve flutter keeps things in check I think the rod will hold out.

i had to delete my private messages so i kinda forgot where we were at with that deal

these old motors seem pretty strong, i dont think it has a weak link