Got set of 24000mi. Ls6 heads for sale.
1.New Gm valve seals
2.Guides have been checked.
3.Resurfaced .018 for 60cc chambers
4.Small amout of clean up done to the valve seats.
5.Yes the valves are Hollow stem intake sodium filled exhaust.
Looking to get 500obo

Thunder Racing Cheatr Cam
214/230 578/601 on a lsa 117
250obo

Or you can pick both up for 700.

 

Bump for some offers.

 

if i wouldnt have bought some 243s a couple of months ago i would be all over the heads.

free bump for you

 

if i got the heads milled some more how would they work on a 5.3?

 

I wouldn't touch them far as milling goes.Just run some thinner gaskets.You could probably get close to 10 to 1 doing that.I think they would work very well on a 5.3 with a decent size cam like one in the 220's duration.

 

how many miles on the cam?

 

About 5000.It looks good consistant wear marks on all the lobes.

 

would i beable to put the cam into a stock 5.3 with 862 heads with out changing the springs?

 

lol no. For that lift I would get dual springs. PRC makes an affordable set that seem to be working for people.

 

Or buy a real set of springs and put some PAC 1518s with tool steel retainers and hardened locators in the thing.