Not sure if that matters or not. But the lighter it all is, the better you can rev.

Length, width, weight [as has been stated], and oil passage? No clue on that one.. but like bonnememn said, lighter = better anywhere on the valvetrain. Pretty much anywhere on the rotating engine..


-justin

Anyone know of some good lightweight valves?

I think the LS6 vlaves are hollow. Will they fit? (might be a long shot but maybe they come close)

dont forget you will need a smaller pulley

Smaller pulley? Maybe. From what I hear 93 heads on a 92 will lower compression just a little bit.

Err.. how? I always thought an L67 is an L67. The only difference was the EGR System, and the roller-fulcrum rockers? As with all rebuilds, the compression ratio will drop, but nothing measurable. Unless you get all gasket mating surfaces machined, there will always be some old gasket material left, and there isn't anything you can do about it.


-justin

http://www.bonnevilleclub.com/forum/...hlight=pistons

could you get the heads slimmed a little to raise the compression to what you want?

I stand corrected.

Gotta be careful with removing head material. In my Top End Rebuild thread, I couldn't get a straight answer on if I valvetrain replacement, or if my intake was going to need some material removed also. If you are just removing .010" then you should be alright.. but anywhere past that you could run into some problems. I found that our valves come pretty close to piston, even though we have very little lift. So you've gotta be careful with that type of stuff.


-justin