
01-22-2005, 09:02 AM
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CC Member
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Join Date: Mar 2002
Cobra Make, Engine:
Posts: 302
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Not Ranked
Help me design a 390!
Okay guys,
I've been tossing this around for a long time, but the "winter" has got me bored and I'm ready to plunge.
My Shell Valley currently had a very potent 289. The thing is a rocket with 4.57 gears and a Tremec 5-spd.
A buddy of mine has about a DOZEN 390's and is willing to GIVE them all to me. Some are runners and some are parts.
I really think that the Cobra should have an FE in it, so I'm finally going to do it.
So what do I want to build? I'm already in the aluminum heads/manifold mode just to shave some weight. I'd like to keep the rear gears, and I currently cruise at 70 MPH at about 2,750 RPM. I don't care about mileage, as this is a fun-only car.
So what would be the best 390-starting-point combination for my 2400# (with driver and 289) car?
C.R.?, Cam? Rods, crank, etc? I don't want to start calling engine builders and wasting their time with questions since I won't be spending money on their parts. I figure there are plenty of 390-guys here with some free time that can give me some advice.
Thanks, Tom.
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