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Old 04-01-2004, 01:17 PM
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help on heads selection

I'm having trouble selecting what set of heads I want for my .040 350 chevy. My shortblock will have race prepped rods with ARP bolts. Speed-Pro Hyper flat pistons. With a Scat cast steel crank. I don't know what gears I have, but their in a 72 truck. Lets say it has 3.42. I'm looking in a book right now that says I can get 487 76cc heads totally redone with 2.02/1.60, and harden exhaust seats for $500. I'm also looking at a set of World product 67cc straight plug head 2.02/1.60 screw in studs for $700. Will the World head hurt me. I mean it's a new casting verses a 25 year old casting. This motor has an high rise aluminum intake, and a 600 Holley. I'm going to use this intake, and carb due to lack of funds, so I have to go with these heads, or something close(Dart,Pro). Also I need help with cam selection. I've used a 268/454, 270/470, 272/4??, 280/480, and 292/501 comp cams before. I'm not up on rpm ranges of these cams, but I'm lookig at stall converters right now. One is a 1,600-2,200, and the other is 2,200-2,800. Can someone steer me in the right direction on Heads, Cam, and Converter. This is a 1972 Chevy long wheel base pick up. I would love to run mid 13's, or maybe high 12's. Keep in mind after I find out what gears are there, I can change them in time. Someone might could give me an idea what gears could be in it. 1972 truck, 350 engine. Not really worried about gas mileage, but I do want it streetable, 93 octane, and somewhere between 9.5- 10.5 compression.

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Old 04-01-2004, 01:26 PM
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Go with the WP's. Best bang for the buck. Look for a cam with about 6 degrees of split at .050"

Chris
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Old 04-01-2004, 01:38 PM
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Can you make that a little more clear for me? Not up on much stuff like that.

What about off of this page.

http://www.atlanticspeed.com/store/C...s%20K-Kits.asp - 40k - Cached

What about off of this page.

http://www.atlanticspeed.com/store/C...s%20K-Kits.asp - 40k - Cached

Last edited by savman1; 04-01-2004 at 01:38 PM.
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Old 04-01-2004, 01:43 PM
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On that heavy truck, you are going to need somegood low and mid range torque. To be streetable go with the 268 cam and the 16-2200 convertor. The World heads are sooo much better than a set of cobbled up stockers and worth much more when it comes time to sell them. Besides they will take more abuse and give more HP out of the box than the 487's will with a port and polish job. Good luck trying to get a Brick/Barn door into the 12's. and ain't no way 10.5 to 1 on 93 octane on the street.
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Old 04-01-2004, 02:18 PM
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What will 4 valve relief pistons with 64cc Pro topline haeds make the compression? Is the 270/470 cam agood selection?
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Old 04-01-2004, 02:21 PM
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64 cc heads will give you 10-1 compression approx. I don't like the 270 cam in a heavy vehicle. It has a narrow centerline and is a bit too peaky. Idle is pretty mean tho.
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