I have read somewhere in this forum about the difference in the vortec heads for the L31 motor 96-98. Which head is the one that kills low end torque and flow? I think I remember reading that the "906" casting #'s were the ones to be avoided. Need any advice or info.

thanks
Silent Thunder

 

Did you already ask this question?

https://www.performancetrucks.net/fo...d.php?t=358447

 

Sorry, thanks for bringing that to my attention. I have several sites that I chat and check around. Sorry

 

A quick yahoo search can do wonders.

http://www.automotiveforums.com/vbulletin/t244398.html

 

Thanks for the useful info. even if it was a repost by myself.