It’s no secret that I’m into the LS-series engines. I ran across some information from a friend the other day about converting the earlier engines to the LS-6 style of PCV valve. This may not sound like a big deal, but the early 4.8L, 5.3L, and 5.7L engines that placed the PCV valve in the rocker cover have experienced problems with pulling oil into the intake manifold. GM solved this problem by changing the location of the PCV valve from the valve cover to the lifter valley plate. The LS6 lifter valley plate incorporates a large baffled separator chamber that is much more efficient than the older valve cover version. Some early engines incorporate a boss in the lifter valley that will have to be trimmed to fit the LS-6 lifter valley plate. The plate is PN 12577927 and will cost just under $75.00 through Scoggin-Dickey (sdpc2000.com). This is a slick conversion that is good for any performance engine and will help keep oil out of the induction system. That’s a good thing because oil is a great detonation enhancer.