These are our most premium replacement oversized valves for the Ecotec 2.0 LSJ/LNF/LHU/LDK, 2.4 LE5, and possibly some 2.2 applications. Inconel is a better alloy to make the valve more durable and last longer in higher abuse related conditions. They all come at .5mm oversized, we have tested many different valve sizes and this is the size we recommend for ported heads. The head needs to be ported and valve seats modified to take full advantage of an oversized valve. Due to the difference in the valve dish, installing a set of these valves with no other modifications will increase the compression ratio of an LNF from 9.2 to 9.3 and an LSJ from 9.5 to 9.75.
They are priced per set of 8, so you would need 1 set of intake and 1 set of exhaust to replace all of your valves.
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