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09-28-2003, 03:28 PM
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Cranking Compression 10.5:1
Does anyone have a Small Block Chevy with 10.5:1 compression and a 230-240o @ .050" cam. How many psi. is the cranking compression that you get from your compression tester?
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09-28-2003, 04:16 PM
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stop thinking and just buy some good heads........your building a car to go fast right...........so go fast not half ***
  
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09-28-2003, 09:10 PM
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Between 160 and 180.
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09-28-2003, 09:49 PM
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if i have 10.5 to 1 and 100 cranking psi how big of cam do i have.
all i know is 308 510 lift. or is other problems to look at. runs great.
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09-29-2003, 07:17 AM
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!00 psi isn't enough, are you sure the cam was installed properly! Valve lash correct? 170lbs.
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09-29-2003, 01:59 PM
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308 and 510 sounds like the common grind for edelbrock performer RPM. 150 pounds I'd say.
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09-29-2003, 08:49 PM
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i have chevy turbo heads 2.02 1.60 valves with 64cc chamber and angle plugs. all i know is it has triple valve spring with solid lifters and the cam is 308 510 lift(all i have for cam.). valves aren't making any noise so they should be ok and the motor was built in 87. the motor was put in a 64 nova and drove for 6 months then parked until march of this year when i got it so motor shouldn't be wore out. the motor runs good and strong. what if my compression was 10 to 1( the guy i bought it from couldn't remeber but it was 10 or 10.5 to 1).
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09-30-2003, 12:27 AM
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I am at 175 psi right now with my 76cc heads. I wanted to know where I will be with a 64cc head.
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