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Old 03-30-2004, 01:35 PM
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what to do

I have a 72 long wheel base chevy pick up. It's gonna cost me $250 to get the block ready. I can get a rotating assembly out of JR Motorsports for around $700, or so. It would have 9.7 compression with 64cc heads. I really don't know what the rear gears are, but probably somewhere between 3.08, and 3.73. So if I bought a 2,200 stall, and a 280/480 comp cam, what would be my best bet on a good set of heads. World Products 67cc straight plug 194/150. Dart 72cc 194/150, or a redone set of 76cc heads. I want to spend no more than $2,000 on the engine. The Dart heads completely assembled are $700. If I go this route, I"ve spent about $1,650. What I want to do with this truck is run with the new type stock camaros, and firebirds. They have 325 hp, and it's hooked up. I'm figuring about 375 hp, and maybe somehow run 13.50 in the 1/4 mile.
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Old 03-30-2004, 01:44 PM
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You are trying to fly a loaded boxcar against the wind. I think with the stock type shortblock and that cam I would go for the reworked stock heads. The aftermkt heads are great but they are not being used to their potential with the cam and engine combo you have. Plus you are going to need some low end torque to move that square block off the line.
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Old 03-30-2004, 01:57 PM
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I would go with the shortblock you are looking at, vortec heads, comp cams xe268h cam, and a performer rpm intake manifold. That should put you right about 375 hp, 400 tq in a 355. You can get a set of assembeled vortec heads with the machine work needed to run a cam up to .525 lift for $635 from scoggin dickey. I had this motor in a 1972 nova, and ran really well. Whatever you do, unless you are using a set of heads with a good port job, I would stick with a dual pattern cam. An unported set of heads will need all the exhaust help they can get.

Adam
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Old 03-30-2004, 03:25 PM
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I like the vortec idea, but I don't want to have to buy a different intake. Is it possible to run low 13's in this truck?

Quote:
Originally posted by BOBCRMAN@aol.com
You are trying to fly a loaded boxcar against the wind. I think with the stock type shortblock and that cam I would go for the reworked stock heads. The aftermkt heads are great but they are not being used to their potential with the cam and engine combo you have. Plus you are going to need some low end torque to move that square block off the line.
That cam is just one off the top of my head. Which one would you go with?
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Old 03-30-2004, 04:52 PM
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I would go with the XE268H cam from comp cams. It worked really well for me. As far as the intake manifold goes, if you use a stock intake on a motor with higher flowing heads, it will greatly hurt your performance. If you go with Vortec heads, you are going to be spending around $100 less than another aftermarket iron head, a performer RPM intake is only $173. So you are really only looking at around $70-$100 over a set of the other heads using your stock intake. Another good thing about the Vortecs is that they come with 64cc chambers which will give you the compression you want.

good luck,
Adam
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Old 03-30-2004, 06:00 PM
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Quote:
Originally posted by firestone
I would go with the XE268H cam from comp cams. It worked really well for me. As far as the intake manifold goes, if you use a stock intake on a motor with higher flowing heads, it will greatly hurt your performance. If you go with Vortec heads, you are going to be spending around $100 less than another aftermarket iron head, a performer RPM intake is only $173. So you are really only looking at around $70-$100 over a set of the other heads using your stock intake. Another good thing about the Vortecs is that they come with 64cc chambers which will give you the compression you want.

good luck,
Adam
You are forgetting the cost of either new valve covers or adapters.
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