Well here are some numbers for our LS6 race head. Just got off the flow bench last night with these. Here are the spec's:

LS6 castings
Manley 2.080 stainless steel intake valves
Manley 1.600 stainless steel exhaust valves
Comp Cams titanium retainers
Comp Cams 978 springs
Bronze guides
teflon seals

Intake Flow numbers
.100" / 78.8 cfm
.200" / 163.9 cfm
.300" / 221.7 cfm
.400" / 275.9 cfm
.500" / 310.7 cfm
.550" / 323.2 cfm
.600" / 332.6 cfm
.650" / 338.4 cfm
This head was flowed on a 4.125" bore w/ a radius inlet and was tested @ 28"

Exhaust flow numbers
.100" / 65.4 cfm
.200" / 114.1 cfm
.300" / 163.0 cfm
.400" / 207.7 cfm
.500" / 251.0 cfm
.550" / 263.7 cfm
.600" / 266.8 cfm
.650" / 269.6 cfm
The exhaust was flowed with a tube

If you have any questions please feel free to ask.

Thanks,

 

amazing. very very cool!

 

great numbers

I think you made a typo though in the .600 lift on the exhaust side

 

Looks good. A couple of questions/requests.

1. Runner volumes
2. Bench used
3. Can you flow them on a 3.9 fixture?

Thanks, and keep up the good work.

 

holy crap those are some great #'s...jrod also asked the same questions i have

 

I'd also like to know the above. In addition to those can you tell us what size the combustion chamber ends up being on one that isn't milled?

 

wow, i am impressed.

 

Yep, I did make a typo, my bad. I corrected it know, thanks Chris.

These heads were flowed on a Super Flow 600
I will get you runner volumes in the next couple of hours. Also the chamber sizes of unmilled heads. We basically can get you chamber sizes from 68cc down to what ever you want to mill them too.

I will try to get them on the bench tonight with a 3.9 bore and will give you the results as soon as I get them.

Thanks for all of the questions.

 

Very impressive.. That's enough cfm to support some HUGE horsepower #'s. Put those on Mike K.'s setup..

 

Price?

 

Very good #'s I to am impressed!! Keep up the good work!!

 

Price?
Dyno numbers?
Track times?

Looks good!

 

Nice work Gel

 

Price?

 

Pricing has not been finalized yet.

 

Yeah I too want to know how they flow on a 3.9. Good work guys!

 

Im unsure that there would be any benifit to a 2.08 valve on a 3.9 bore. There might be too much shrouding.

 

Grats on the flow numbers guys!! Keep up the good work.

 

WOW, absolutely amazing. You guys keep pushing the envelope, and the communication and customer service are second to none. Congrats.

I know who I'll be talking to for my next motor.

Bad30th

 

Yeah, how bout some pix of the runners.....LOL