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Old 07-31-2002, 09:43 AM
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Question Stock 350 with 305 truck heads?

I bought this motor in a wrecked truck and thought it had 350 heads. I ran the numbers and it has the 601 casting which is the truck 305 heads. My question is what should my compression gauge read with these heads on a 350. The motor is suppose to be stock it has flat top pistons and with a worn out camshaft with only .385 lift i had 130 lbs of compression. I am putting this motor in a 1/2 mile circle track car. I am going with a 280 .480 lift cam and the car is set up to top out a 5500rpm, will this setup work ok? I am open to any suggestions.

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Old 08-01-2002, 01:34 PM
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all i know is they should put your compression in the 10:1 range but they have little intake valves, so don't really know what to tell you. 1/2 mile is along way around, and small valves aint what i think you put on race cars.
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Old 08-01-2002, 09:48 PM
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Thanks for the input bullheimer. The truck 305 heads have 1.84 intake valves and 1.50 exhaust which i know is small but they are better than the car heads. I am still wondering what the compression gauge should have read, i still think it should have been more than 130lbs
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Old 08-04-2009, 01:15 PM
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truck heads

truck heads made good low end torque, they weren't horsepower monsters however, car heads had larger valves and runners if I'm not mistaken, giving them better top-end power. If you aren't expecting to rev over 5500 rpm, then they should work fine as long as you're not shooting for 400 hp or anything
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