LS1 heads Compared to LS6 Heads
id guess 15-20whp
i think he should port his ls1 heads
Is the swap from stock ls1 to ls6 head worth it? No, not for the work entailed, but if you're going to be unbolting your stock heads, look into a set of Stage II 5.3's, Stage II LS6 heads, or AFR's.
A set of 5.7 Ls1 heads can match up well to a cam:
https://ls1tech.com/forums/dynamometer-results-comparisons/263234-tsp225-mti-stg2e-dyno-results.html
But, most people swap from stock 5.7's to 5.3's or LS6 heads.
and aren't the patriot ls1 heads just stock heads with a port job?
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWN%3AIT
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT



