gtodoug

iTrader: (1)

Well, I just got confirmation. The heads are fresh off the flowbench. The results were not as advertised, they were better. They were flowed on LME's Superflow SF600. Needless to say I'm elated. The mid flow numbers are outstanding. Big thanks goes out to Cary on a product that delivers as advertised. The heads choked up past .675" of lift as advertised. The exhaust flow numbers are especially good. The motor leaves Houston on friday guys. I can't wait.

The heads were not off the shelf 245's. I had them milled down to 62cc and 2.08/1.60 valves used as opposed to the standard 2.10/1.57 valve combo it uses for it's advertised numbers. The valvetrain is also upgraded(springs/retainers). I kinda wish I would have opted for the titanium valve option, but another 600-700 bucks.....I can live without it.

4.0" bore @ 28" H2O
Super Flow SF600
Intake flowed with a radiused inlet. Exhaust w/ no pipe.

INTAKE

Lift Actual Advertised Variance
.100 71 73 -2
.200 144 152 -8
.300 220 210 +10
.400 279 266 +13
.450 303 XXX XXX
.500 319 312 +7
.550 332 327 +5
.600 338 338 0
.650 340 346 -6
.675 341 XXX 0

Avg. 255 253

EXHAUST

Lift Actual Advertised Variance

.100 57 57 0
.200 111 114 -3
.300 154 164 -10
.400 212 204 +8
.450 227 XXX XXX
.500 236 224 +12
.550 243 228 +15
.600 247 231 +16
.650 251 234 +17
.700 253 236 +17

Avg. 196 188

Cost of heads: $3000+
Wait time: 5-6mos
Look on my face when I see over 300cfm at .450 lift: priceless

just-a-z

iTrader: (25)

wow!!

WsSickLs6

looking good...

prostock_bigblock

iTrader: (11)

congrats those r really some strong flowing numbers.

CAT3

iTrader: (9)

Would love to have seen your face, the typed description only paints a faint picture I am sure.

TheBlurLS1

iTrader: (8)

Congrats on the heads! I hope this company gets going alot better and makes these things easier to get ahold of! I've got a feeling with the new stuff from world and heads like these, the LS1 is going to start getting outrageously mean. I'm glad I got in on the ground floor

Anyway, here's what 4:28 am gets you! I LOL'd at your last comment so much I just couldnt resist

SlickVert

iTrader: (5)

Nice write-up, good comparisons on the flow #’s.
Those flow #’s do look extremely strong, your GTO should put down some crazy numbers on the dyno and the track.

beardWS6

iTrader: (1)

I waiting on a set of 245`s for my 408 as we speak at G-Force. Thats all I`m waiting on!!!!!!!!!

GuitsBoy

iTrader: (4)

LOL at the demotivator.

Its supposed to have a sarcastic caption... Try this:


Im just kidding cause im extraordinarily jealous. Those heads sound like theyre going to kick some ***. Congrats on those flow numbers.

kumar75150

Drool. Very nice numbers although from what second hand info I have, the LME bench does seem to flow a little bit better than some others.

Bryan@LME

iTrader: (4)

I can't say enough about the quality of the ET cylinder heads. The flow numbers are excellent for just popping two springs off and putting them on the bench. Our bench is actually right on. It is regularly calibrated with the Super Flow calibration plates. When we flowed a set of the ET 265's they were one CFM off of what they told us they flowed. Our bench read 373 CFM @ .650" & ET's number was 374 CFM @ .650"

In any event, the ET heads are bad *** & should make some killer power!

kumar75150

The only reason I guessed your bench was a little high was because Ive seen 2 sets of heads flow very high there and make very average numbers once the motor was put together. Just guessing.

beardWS6

iTrader: (1)

Bryan, G-Force has my 408 from you guys right now. I`m waiting on a set of 245`s and i will be running. I really look forward to seeing the power this thing is going to make. Can`t wait. Thanks for the 408!

antz01ta

iTrader: (3)

am i missing something or are the 245's not on the et site. i can only see the 215's, 225's, 240's, 255's, and 265's.

i have a set of 240's ordered and am patiently waiting for them to sit on top of my 421 stroker.

kumar75150

ya i was just thinking that earlier

i plan on going with the 255s myself for my 408 unless someone talks me out of it

SMDLS1

iTrader: (9)

This post makes me glad that I waited and went with Et heads.

orangeapeel

iTrader: (18)

Nice. You should have that made into a poster!

antz01ta

iTrader: (3)

unless this is a solid roller high rpm motor i would be worried about the heads being a little soft for street use. the 240 would probably be a better choice for a street motor.

Ben R

255's are the way to go for a max-effort pump-gas 408. Good choice Kumar.

kumar75150

im not really worried about power under 5000rpm really

i come from I4 Hondas so a 408cid V8 and 3.90s already roasts the tires everywhere. Im just interested in power where I will be racing in.