What do as cast ls6 heads flow?
#2
Originally Posted by NoGamesLS1
What will the ls6 head flow, as cast? Would use the search but its been draggin ***
Not at the shop right now, but if memory serves the ones we have flowed were in the 250's @ .600". In the morning, we will get some numbers all the way from .100"-.600" posted up.
#3
Here are the numbers on a stock 243 head with stock valves and valve job. These were flowed on a 3.905" bore using a clay radius.
.100 63 / 59
.200 124 / 105
.300 179 / 140
.400 220 / 159
.500 242 / 170
.550 250 / 175
.600 252 / 178
.100 63 / 59
.200 124 / 105
.300 179 / 140
.400 220 / 159
.500 242 / 170
.550 250 / 175
.600 252 / 178
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#8
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250cfm....you gotta be kidding me. Man I gotta get new heads, mine are still just LS1 friggin heads on a damn 436 stroker. Talk about the weak link.
#9
Originally Posted by Quickin
250cfm....you gotta be kidding me. Man I gotta get new heads, mine are still just LS1 friggin heads on a damn 436 stroker. Talk about the weak link.
We have 243 CNC ported castings available with OEM valves and LS6 springs for only $865.00 per pair assembled. Check out this thread for all the options we currently have available.
https://ls1tech.com/forums/generation-iii-internal-engine/435820-cnc-ported-243-budget-heads-865-00-per-pair-assembled.html
#10
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Originally Posted by Gunnar@Patriot
We have 243 CNC ported castings available with OEM valves and LS6 springs for only $865.00 per pair assembled. Check out this thread for all the options we currently have available.
https://ls1tech.com/forums/showthread.php?t=435820
https://ls1tech.com/forums/showthread.php?t=435820
i know with the bigger valves you are getting 305ish but how about with stock valves?
also, im assuming there has been no multi angle job done on the stock valves is that right?
thanks
#11
Here are some flow numbers on a set of our ported 243 castings with 2.00"/1.55" valves. Heads were flowed on our Superflow 1020, 3.905" Bore, using a clay radius, and pipe:
.100" 75 / 62
.200" 154 / 121
.300" 215 / 165
.400" 254 / 200
.500" 285 / 217
.550" 292 / 221
.600" 301 / 226
We do our 5 angle valve job on these.
.100" 75 / 62
.200" 154 / 121
.300" 215 / 165
.400" 254 / 200
.500" 285 / 217
.550" 292 / 221
.600" 301 / 226
We do our 5 angle valve job on these.
#13
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Originally Posted by Quickin
250cfm....you gotta be kidding me. Man I gotta get new heads, mine are still just LS1 friggin heads on a damn 436 stroker. Talk about the weak link.