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Original Message
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| 390 rebuild/build-up advice wanted (long) |
| By J. Robb - 09/17/2000 10:01:16 PM; IP 209.254.191.185 |
I am going to start gathering parts for the engine rebuild of my 390 "IP", which belongs to my 69 Cougar XR7. I am planning on doing basically a stock rebuild with a mild cam. This is the one I was looking at: Crane Powermax CRA-343971.. intake lift/duration at .05 is .469/192
exhaust lift/duration at .05 is .501/204, and the lobe separtation is 114. I would also get the crane recommended lifters and springs it lists with this cam. Does this sound like a good cam to unleash a little extra potential from this engine, but still have vacuum and have a fair idle? Should I also get the retainers they recommend, or reuse my old ones? I plan to get new valves also. If my cylinders arn't tapered, I am not going to bore it, which hopefully is the case. But is it recommended to reuse my pistons and rods if I don't bore? For rings, should I bother with cro-moly, or just get the regular ones? I plan to use the original carb (4300) and s-code intake. Should I have a machine shop put in new cam bearings? Speaking of machine shops, is there anything I should definately have done besides hardened valve seats and a balance? Lastly, is there a company out there that makes block hugger headers that require NO modifications that fit this car? I know the exhaust is probably the biggest restriction, if all else fails, i'll put the stock system back on with some flowmasters.. I really need exhaust advice, maybe some polish work on exhaust side of the heads? All in all, what kind of ballpark figures would you think I'd be able to get from what i've listed for torque and HP?
Thanks for reading all that! |
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