Mike454SS

iTrader: (4)

I've been digging around and I can't find anything out about the heads GM will be making to go with the new LSx block. Anybody know off hand what the valve angle is going to be on them?

Stang's Bane

iTrader: (22)

Since they can use the LS7 valvetrain I will assume 12 deg. As far as I know though no info has been released on them yet. Sorry I couldn't be more help.

stevewix

interested in knowing as well.

strokedTA

Not sure what angle they will be making, but any LS head will fit the block.

Mike454SS

iTrader: (4)

I know any LS series head will fit...but I'm interested in 6 bolt heads...I see no reason to go to a 6 bolt block with 4 bolt heads...just trying to find out if I'll need to get a new set of JE's cut for 12 degree heads to replace the brand new ones I have sitting here that were going to go into an LQ4 block.

OR...depending on my piston to valve clearance...will it be a big deal that the pistons were originally made with 15 degree valves in mind?

Stang's Bane

iTrader: (22)

I have the same problem myself, 15 deg pistons that will go under 12 degree heads. I am just going to stuff the biggest cam in there I can without flycutting and live with it.