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oldredford · 08-16-2021, 11:49 AM

The new heads have a better combustion and intake flow. The difference between stock and 6.1 is amazing. Also if you plan to install a Mitchel overdrive you need the higher compression head.

08-16-2021, 11:49 AM	#9
oldredford Senior Member Join Date: May 2010 Location: Moncks Corner, SC Posts: 439	Re: High Compression Head Replacement The new heads have a better combustion and intake flow. The difference between stock and 6.1 is amazing. Also if you plan to install a Mitchel overdrive you need the higher compression head.