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Jim Brierley · 09-18-2019, 10:42 AM

I have a chart in my book, done by Dave Barker some years ago, showing compression ratios using different bore sizes. It shows 155 for standard bore, 6:1 head. And it shows about 240 cc's for 4.2:1.

09-18-2019, 10:42 AM	#2
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,089	Re: How many cc’s?? I have a chart in my book, done by Dave Barker some years ago, showing compression ratios using different bore sizes. It shows 155 for standard bore, 6:1 head. And it shows about 240 cc's for 4.2:1.