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Old 07-30-2009, 10:11 PM   #8
Marv D
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Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
Re: HP/Torque guess on this 400 build?

My 66 backhalved with a Alston 4link kit, fiberglas front fenders, fiberglass hood and .065 aluminum covering all the places that 'used to be' wood.. weighs 3380 with my 190 pounds. 3600 may be a little optimistic, let's figure 3800+ to be safe.

Budget is tight at $1200. I mean we could sopend that in heads and have nothing left for anything else. I think Vortecs are out of the question here. The heads may be had for $300 to $400 but then you need a vortec specific intake (the Edelbrock item is nearly $400, add a set of centerbolt valve covers, and self guiding rockers. Vortec specific intake gaskets,, you will easily spend more on ' other required items' than you will the used GM Vortecs to begin with. And all those 'must have's apply to the aftermarket too.

So,, start looking on the net for a set of used 885 castings. There a large chamber head that will work decent up to 4500 in a mild 400 motor. Cam ought to be no more than the Comp XE274, with compression at 9.x (let's hope the block isn't going to need decking)
ANy performer or clone intake ought to work, and a nice little 750 Carter would make for a nice street truck.

Any other thoughts?????
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