head swap
Jul 9, 2007 | 09:32 PM
#31
Originally Posted by tdrumm
If you are going to use Richard, and I highly recommend that you do, talk to him about a set of his stage 1 ported 5.3 heads. I love mine 
. Well, at least I did back when I could actually drive my truck 
.
. Well, at least I did back when I could actually drive my truck .
Originally Posted by cherrypopper
guys how much should a 243 head be milled on a 07 5.3 ....i mean to raise my compression ..?
Good luck,
Richard
Jul 10, 2007 | 05:29 AM
#33
Originally Posted by Richard@WCCH
Thanks for the recommendation Tom. I'm sorry to see you're a victim of the dreaded "Broken 4L60E Transmission Syndrome".
Jul 11, 2007 | 05:44 AM
#35
Originally Posted by cherrypopper
do the 243 and 799s on the new 07 trucks have the ls6 valves the sodium filled the light ones? anyone know?
Jul 12, 2007 | 02:20 PM
#36
Teching In
Joined: May 2007
Posts: 31
Likes: 0
From: Michigan
Maybe they have 2 casting numbers for all there heads because there are 2 different foundries that make them. Just a thought. I used to work for GM and they often made the same component in more than one place.
Jul 12, 2007 | 02:26 PM
#37
Originally Posted by tdrumm
I think the lightweight valves were LS6 only. LS2s which also have 243 heads have standard valves, so I would imagine the truck engines do as well.
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