Flow #s of ported 317 heads(not mine)
#1
TECH Addict
Thread Starter
iTrader: (59)
Join Date: Oct 2004
Location: Vance, Alabama
Posts: 2,357
Likes: 0
Received 0 Likes
on
0 Posts
Flow #s of ported 317 heads(not mine)
These are some flow numbers of a set of 317 6.0 heads that a bud has that wanted me to check out and so I sent em off the be flowed to see were they are as they sit. These heads look to be nicely done(by a well known LS1 shop) and I thought I would post up the #s since I had seen alot of flow #s posted lately. The port volumes are 232cc intake and 84cc exhaust and valve size is 2.08/1.60. The exhaust was flowed with a pipe:
3.900 fixture
.200 133/111
.300 196/147
.400 251/174
.500 282/196
.600 293/214
4.125 fixture
.200 136/113
.300 199/150
.400 257/180
.500 294/208
.600 313/230
The intake gets turbulent at .550 and higher on the 3.900 fixture IMO mainly because of the 2.08 valve. Just a little info for ya.
3.900 fixture
.200 133/111
.300 196/147
.400 251/174
.500 282/196
.600 293/214
4.125 fixture
.200 136/113
.300 199/150
.400 257/180
.500 294/208
.600 313/230
The intake gets turbulent at .550 and higher on the 3.900 fixture IMO mainly because of the 2.08 valve. Just a little info for ya.
#4
TECH Addict
Thread Starter
iTrader: (59)
Join Date: Oct 2004
Location: Vance, Alabama
Posts: 2,357
Likes: 0
Received 0 Likes
on
0 Posts
I am not at liberty to say, do not want to get into all that. I feel these are probably average #s that most people will get getting on this type of cylinder head of this size.