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Purdy Swoft · 09-09-2013, 07:55 PM

I've seen two versions of the heads with model A in raised letters on the riser of the head. These heads are aftermarket . If it has a heart shaped combustion chamber it is higher compression , probably 5.0 to 5.2 compression. I have one with the raised letters that appears to have the original 4.2 compression. The one with heart shaped combustion would be a keeper. the other might bring $25.00 to $50.00 if you are lucky.

09-09-2013, 07:55 PM	#4
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: "Model A" Cylinder Head I've seen two versions of the heads with model A in raised letters on the riser of the head. These heads are aftermarket . If it has a heart shaped combustion chamber it is higher compression , probably 5.0 to 5.2 compression. I have one with the raised letters that appears to have the original 4.2 compression. The one with heart shaped combustion would be a keeper. the other might bring $25.00 to $50.00 if you are lucky.