I forgot about the fancy tap shift, so youre correct that the valve body is different to compensate for that. But far as new and better parts.....thats debatable. I still think the series 2 L67 is the best engine. Also over the past 6 years we have never bricked a 97 PCM. And my axles are from my 97 GTP that wrecked with a ton of track passes on them. I just recently replaced one boot. I personally think the newer stuff is cheaper. Its been proven already that the L67 had stronger rods. Technology isnt always better on cars IMO.