[truth411]

Originally Posted by thePill

I agree with everything above although, a solid pushrod is going to bend or break which is why hydraulic lifters were used in the first place... and, are you going to pull the engine to do the cam swap or remove the radiator and hope the grille, rad support or front fascia isn't going to get in the way?

Cheaper? sure, even though the LS3 and Coyote are about the same price out of the box.. My cams are more expensive, for now... but now that I think about it, changing cams isn't really as critical in a DOHC as they were in OHVs. All of the current 9 and 10 second 5.0s are on stock cams.

I know there are overseas taxes however, OHCs were used far before the the official formation of the European Union in 1993. Without the EU, there was NO Euro 1, 2, 3 or 4 standards. I do believe that 20,000rpm is excessive, but it does go to show you how much farther a OHC can go without mechanical limitations... The power band on a 20k 400hp engine would be nearly flat. On the other hand, a 10k 400hp engine would have weak points (beginning and end) especially if the valves were floating at higher RPM.

and you talk about less weight, the Coyote weighs 429lbs and has TiVCT, 4 extra cams, 2 timing chains, 2 extra quarts of oil and a larger oil pan. The LS3 weighs 418lbs... The LS3 is also a 3rd Gen LS series engine, the Coyote is a 1st Gen design... Who's to say that Coyote 2 won't be 450hp, 420tq?.. What about Coyote 3 when PTWA liners come in and save another 8lbs and increase output by another 8hp/tq? The LS series engines are at the same point in its life as the SRA is, both doing well, but won't survive another generation.

LOL keep telling yourself that, the LS3 IS old and about to disappear in 2 years. It's all speculation, but I'm being told that the Gen V V8s blow away their N.A. DOHC V8 counter parts, who knows what Gen VI will bring (at least H.C.C.I.). In any case its clear that OHV V8s will be apart of GM's V8s for the foreseeable future.