This is a discussion on heads within the Internal Engine forums, part of the LSx Technical Help Section category; is there any way to know if a 243 head has the hollow stem and sodium filled exhaust valves without ...
01-21-2009, 09:34 AM #1
- Join Date
- Oct 2007
- Union Beach, NJ
- 02 z28 m6
is there any way to know if a 243 head has the hollow stem and sodium filled exhaust valves without weighing them? ive noticed that the ls2 243 heads tend not to have the yellow springs.
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