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Old 11-29-2011, 11:22 PM   #5
pmkrew
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Join Date: Sep 2009
Location: Marietta, Ga
Posts: 115
Re: Got Me some Camel Humps!!

Quote:
Originally Posted by Captainfab View Post
1. Assuming your engine has the stock style dished pistons, the smaller 64cc combustion chambers will bump your compression to aprox 9.0-1 No you do not want to use 2 head gaskets. If anything I would use the thinner rubber coated steel shim head gasket, for a slight bump in compression. When you have those heads rebuilt, be sure they true up the head gasket surface.

2. A factory '85 intake will bolt up to those heads. But an Edelbrock carb will not be a direct bolt on. You will need an adapter for that. I would recommend shopping around for a good used aluminum intake. The temperature sensor can mount in the intake. You could even install a 'tee' fitting in the heater hose connection to the intake.

3. What cam depends on your intended usage of the truck, whether you have an auto trans or a manual. With a basically stock engine, you don't want to go very big on a cam. I wouldn't go much bigger than say a Summit #1103 or comparable cam.

4.To move the alternator to the drivers side, you will of course need the short water pump, the correct pulleys, alternator brackets, and belt. If you have or are planning on power steering, you will need a pump, pulleys and brackets for a '72 and older truck, or a '68 and older car.
This is very sound advice.
The 461 double hump heads are very good OEM heads and should help some with power, do they already have screw in rocker studs or press in? If they're not screw in I would suggest finding a machine shop to either pin the studs or preferably machine them, this could save you a lot of headache if you have a heavy right foot...
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