The LT-5 could have been a contenda!

[XfireZ51]

This is the kind of evolution we could have had from GM had they stuck w it.
Coulda, shoulda, woulda...

Pure sex. Ferrari.

http://youtu.be/VD1CITiitQM

[WB9MCW]

Would good zinc levels be even more important for this engine design since the tappets are mechanical?

[mgbrv8]

I was thinking the same^^

Dave

[Hog]

They probably use the properly hardened/prepped lifters/cam lobes on the mechanical flat tappets.

[XfireZ51]

I love the way they vary the runner length.

[Paul Workman]

They didn't mention cam phasing or VVT or direct injection; the whole bag of tricks. I wonder if they were only discussing the changes?

[XfireZ51]

Paul,

Look at how they vary the runner length.

[Paul Workman]

Paul,

Look at how they vary the runner length.

Yeah, I got that; purdy sexy. Somewhere I read where another maker (Porsche?) was already experimenting with variable-length runners with rpm and throttle demand. Ah, but to your point about the LT5 and "WHAT IF!?"