Before
http://www.youtube.com/watch?v=mOEgN1QM0AQ
After with new heads
http://www.youtube.com/watch?v=HYJoMEyhVkk
http://www.youtube.com/watch?v=6Vk539SqMfY
P.S it seems I've picked up around 500 more Rpms & don't know how..
Hope these help..

 

You can definately tell you picked up on the big end.

 

word. You pulled to 110 and then it started to pick up more after that lol

 

looks a lot better. cant wait to see the new times.

 

Looking good.

 

Definate top end gain!

 

Thanks guys, always nice to see a improvement! Anyone wanna tell me where the extra rpms are coming from... Rpms are still the same @ 70 mph, but @ 110mph rpms or @ 4700 & 5300!

 

more power maybe? since your pulling harder up top now that may be why your seeing more of a change in rpms at 110 than at 70. IDk. but is your 6L a LQ4 or 9?

 

Yeah that is definately a big improvement. Hell it broke loose in the second video and not in the first one. Your top end pulls like a tractor now. Thanks for sharing.

 

Vehicle total power and weight are factors in how high a converter will "slip", so you added horsepower and torque and now you have 500 +/- rpm less drop in shifts (stall speed if you will)...nothing bad about that situation haha!