Why polish the combustion chambers?

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Apr 18, 2002 | 01:27 PM

383LQ4SS

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From: Port Richey

Re: Why polish the combustion chambers?

Another is there is less surface area for heat tranfer out of the chamber...the more heat that stays in the chamber the more power..theoretically.

Apr 18, 2002 | 04:21 PM

NoGo

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From: Mass

Re: Why polish the combustion chambers?

Polishing also reduces the chances of stress fractures.... not that I have ever heard of anyone cracking a head in two.

Apr 18, 2002 | 05:06 PM

Scalpel

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From: Lexington, Ky

Re: Why polish the combustion chambers?

It also helps prevent detonation by deburring any hot spots that may be in the cylinder head.

Apr 18, 2002 | 07:46 PM

Reckless

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From: Canton, GA

Re: Why polish the combustion chambers?

Good info guys...thanks!
Todd

Apr 18, 2002 | 08:03 PM

FastOrange99Z

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From: ILLINOIS

Re: Why polish the combustion chambers?

I was told that you dont want it completely smooth. You do want to promote turbulance. Anyone else?

Apr 18, 2002 | 08:39 PM

Bob2of3

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From: Mantua, NJ

Re: Why polish the combustion chambers?

I think you'd benefit from polished chambers by reduceing the localized hot spots. I'd count on the quench area to provide my turbulance to the mixture

LAter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Apr 19, 2002 | 12:57 AM

Reckless

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From: Canton, GA

Why polish the combustion chambers?

What is the gain from this? Thought the factory flashing was important to retain some turbulence or something?

Are most aftermarket head jobs coming with polished combustion chambers?