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18:1 Compression Pistons

Really? odd.
I've always been taught the quench is for best exhaust scavenging, and better combustion mix.
how does having a large flat area reduce carbon build up?
 
The flame can spread over more of the piston. My last motor was .090 in the hole,no loss of power,and the pistons were a nice smokey color.
 
I decided to go with the 0.030" oversize pistons that the supplier got in, 20:1 CR, i don't want to put off the rebuild any longer than I have to....Winter Is Coming

Interesting news to note, Kennedy sells his custom pistons in oversize, he just doesn't stock them so it takes some time to get in. If i ever do a rebuild again and don't have a time constraint I may look at his further.
Anyone had any experience with them?

Thanks,
KV
 
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