Is anyone running the 706 heads on their engines ? Looking for best bang for my buck for offroading and towing, it seems there are a lot LQ4 out there running 5.3 706 heads with truck towing cams showing promising results for low -mid-power range. I can't afford those overpriced superchargers lol.

 

The research I've done in the past shows that the 243 heads are superior for the 6.0L. Also BTR (Brian Tooley racing) has a Truck Norris cam that is superior for low rpm power. I've learned a lot from Richard Holdener on these upgrades.

https://www.youtube.com/@richardholdener1727/videos

 

Just some notes I've put together:

The 243 heads are equal to LS6 heads, they flow much better than our stock 317 heads (6.0L)
The 799 heads are identical to the 243's.

These heads have a smaller combustion area than the 317's, which increases compression (more low end torque).

These are direct bolt on for our 6.0's.

Gaining low end torque is not easy with just a head swap and cam, but the above post is the best combo I can find.

You'll spend hours with Richards videos as he's an LS guy foremost, including superchargers and turbos.

 

Haven't listened to this newest video yet, but ask and you shall receive, lol.