The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

burnin oil · 12-30-2021, 09:43 AM

A thought is build it with the higher compression but using a thin head gasket. If emmissiins become an issue then install a thicker gasket to slightly lower the compression.

12-30-2021, 09:43 AM	#8
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,921	Re: Compression ratio and smog levels. A thought is build it with the higher compression but using a thin head gasket. If emmissiins become an issue then install a thicker gasket to slightly lower the compression.