Okay, so the LS is popular and responds well to cam swaps, big deal, right? I mean just how much power can you really get from just a camshaft, 20, 30 or maybe 40 hp? What if we told you it was possible to gain over 100 hp from a cam upgrade? Are we crazy? That remains to be seen, but it is possible for a cam swap to net the kind of power gains we normally associate with major upgrades like nitrous or boost. Toss insufficient displacement, compression and an efficient intake manifold, and the LS was just begging for aggressive cam timing. The reason for this is (unlike the original small block), the LS was blessed with an overabundance of cylinder-head flow. Like it predecessor, the LS also responded well to modifications, in fact, a case can be made that it responded even better than the original, especially to cam swaps. Right off the bat we have the fact that, when introduced, the Gen III LS offered substantial power gains over the previous small block. For the uninitiated, let’s examine what makes the LS so popular. If market sales are any indication, the popularity of LS should continue for at least another decade. One need only look at the popularity of the LS for all manner of performance, including its use for engine swaps. Despite being introduced way back in the 1990’s (1999 to be exact), and being replaced by the new Gen V LT engine family, the LS engine still reigns supreme.
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