They also both use an aluminum block and L92/LS3 cylinder heads. While both the LS3 and LSA make use of higher-flow rectangular port heads, compared to cathedral port heads found on earlier Gen ...
The kit includes CNC-ported LS3 cylinder heads, which flow more than 350 cfm (intake side) with 276cc intake runners and 2.165/1.590-inch valves. The high-lift LS7 camshaft makes the most of the ...
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