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Old 01-12-2012, 06:22 PM   #2
Dan Fahey
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Default Re: Polishing combustion chamber

Quote:
Originally Posted by Weekend Racer View Post
Is there any gain of polishing combustion chamber? polishing take off some metal = make conbustion chamber bigger =lower compression ratio!
Thank,
I port and polish Iron LT-1 heads based on Joe Mondellos recommendations.
My Heads made our PINKS ImpalaSS run 8 tenths quicker.

Smooth sharp edges, can reconfigure to make chamber smoother
Open up back side of Intake Chamber. Polish with flapper paper..
Will increase 1 or 2 cc but can be recovered with a little milling of the head.

Benefit with polishing, will help prevent pre-ignition, better breathing will help HP.

Dan
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