GTO 243 Head Question
03-20-2006, 02:40 PM
#1
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GTO 243 Head Question Quick question, I didnt find it on a search. Did the 05-06 GTO LS2 engines have the sodium filled valves or the std heavier ones? Thanks!
03-20-2006, 02:52 PM
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Crap... there is more... How can you quickly tell the date of casting on a 243 head, the 317s have a date code under the valve cover, I didnt see that on the 243, is it coded on the bottom near the pushrod holes? Thanks! I picked up a couple sets, wanting to keep one for myself but would prefer the better of the two.
03-20-2006, 04:03 PM
#6
Originally Posted by GRFMotorsports
ok, another quickie... if a 243 was destined for an LS6 then it automatically had the Sodium valves? I thought is wasnt 100%
if the heads are from a C5 Z06, they have the sodium filled valves.
otherwise, the only way to tell is to weigh they valve.
