Hope I'm putting this in the right forum!

jaggs79transam · #1 02-09-2005, 10:14 AM

Hey all,

I have a question for anyone who can answer.

What is the difference in CC's on heads?

For example if I put 86cc heads on my 455 olds in place of my 80cc heads, what would I gain or lose?

Thanks for the help in advance, and If I posted this in the wrong place don't kill me. It's my 2nd day on here LOL

volkerc · #2 02-09-2005, 02:48 PM

Quote:

Originally Posted by jaggs79transam

Hey all,

I have a question for anyone who can answer.

What is the difference in CC's on heads?

For example if I put 86cc heads on my 455 olds in place of my 80cc heads, what would I gain or lose?

Thanks for the help in advance, and If I posted this in the wrong place don't kill me. It's my 2nd day on here LOL

The higher the CC number the lower the compression/r will be.Lower compression/r means less need in high octane fuel. Performance wise I don't see a big difference in 86cc to 80cc.Hope that answered your question.

CreepingDeath94 · #3 02-09-2005, 03:08 PM

A bigger head cc has the potential for more flow I believe as well depending on your valves.

volkerc · #4 02-09-2005, 03:29 PM

Quote:

Originally Posted by CreepingDeath94

A bigger head cc has the potential for more flow I believe as well depending on your valves.

Sorry not correct.CC is the measurement of the combustion chamber size and has nothing to do with flow.Intake runners, Valve size have to do with flow.

CreepingDeath94 · #5 02-09-2005, 03:59 PM

yea, wasn't sure if the cc helped or not...now i am

hotrod_chevyz · #6 02-09-2005, 05:11 PM

less cc = more compression

volkerc · #7 02-09-2005, 05:53 PM

Quote:

Originally Posted by hotrod_chevyz

less cc = more compression

that is correct, but i thought i already pointed that out...

hotrod_chevyz · #8 02-09-2005, 06:04 PM

you did i didnt see it tho sry.

jaggs79transam · #9 02-10-2005, 12:05 PM

Thanks for the help guys! That is what I needed to know.

I just made up the numbers in my example for the cc's on the heads,.
Sorry if it was confusing.!

Thanks again guys.
Jaggs

volkerc · #10 02-10-2005, 12:30 PM

Quote:

Originally Posted by jaggs79transam

Thanks for the help guys! That is what I needed to know.

I just made up the numbers in my example for the cc's on the heads,.
Sorry if it was confusing.!

Thanks again guys.
Jaggs

No problem, you're welcome...

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