distortion_69

iTrader: (20)

A whole group of mustang guys have ganged up against me saying that its impossible for ls1 heads to flow 300cfm on a stock bore. Well, some of these guys even own speed shops down here and say that I have no clue what I'm talking about that they have hands on experience and I am a magazine racer. Lol. Does anybody have any results where they flowed their own heads or had them flowed on an independent bench on a stock bore and did 300cfm or greater?

Thanks,
Josh

Bo White

iTrader: (59)

People like that will never really believe it until they see it right in front of them so just pay them no attention. Hell just tell em to look at my site and they will see what can be done with the production valves and MILD porting.

JRracing

iTrader: (35)

I an getting ready to have my heads flowed, there TEA 1.5 5.3's they should be above 300cfm.

DanZ28

iTrader: (5)

Tony from AFR posted a bunch of flow numbers of several different head porters recently. Do a search and you will find it pretty easy. AFR website even shows flow numbers and are respected by most mustang guys as well and they make some of the best heads for mustangs too. Anyway just some suggestions. There is tons of proof out there and if they don't believe, oh well!

Dan

distortion_69

iTrader: (20)

All those were flowed on a bigger bore, IIRC.

Thanks,
Josh

2c5s

iTrader: (11)

I have a set of LS6 heads that got flowed 2 weeks ago on a SF600 3.9 bore at 28...............308 @ .600 Tell them to pound sand!

TVWilkes

Yes,a ls1 head can flow over 300 cfm on a stock bore.

JZ'sTA

iTrader: (23)

I have had 2 sets flow over 300 on a stock bore at a local shop.
Absolute Speed, and LPE both toped the 300 mark.
AS right at over 300CFM's at 550, 600 and 700.
So tell them to stick with their mustangs, as they dont know a thing about LS1's.

cyphur

iTrader: (10)

It appears you are correct about that.

SmaknaSS

iTrader: (1)

It doesnt matter what they believe, I think there just talking to give you a hard time.

badpewter-z

iTrader: (4)

just tell them whatever makes you sleep easier at night theres numerous shops and independent porters that have surpassed the 300 mark easily

JZ'sTA

iTrader: (23)

Now that I think about it, just agree with them.
Then tell them to be glad the LS1 heads dont flow 300 yet, because if they did the Mustangs would be even further behind. HAHAHA
I bet that shuts them up.

f-bodman

MARKSZ71 had his 5.3 "truck" heads independantly flowed and they flowed 308@.600

https://ls1tech.com/forums/generation-iii-internal-engine/263891-tsp-stage-2-5-5-3-flows-308-a.html

f-bodman

Maybe this is why they can't believe it, since patriot is one of the few to offer ported mustang heads check this out.

http://sites.reachtheworld.tv/waterN...05244&DID=1225

Stage II flow 218 cfm @ .600 and the Stage III flows 226 @ .600
Don't stock LS1 heads flow around 235??

Race Car Driver

Allan bench flowed my new 205s at 286 cfm but I don't know what they're advertised at.

distortion_69

iTrader: (20)

No doubt.. thanks for the updates.. keep it up guys.

Josh

1QuickT-A

iTrader: (12)

tell em to stick to their ol crustangs and not to be worrying about real hp..

JaSSon

iTrader: (11)

My TEA 1.5s flowed 306@.600 (I) and 267@.600 (E) on a 3.90 bore.

WS6FirebirdTA00

iTrader: (33)

thats odd cause most numbers are see are 299-305 for those heads

Camaro99SS

iTrader: (4)

Get some flow numbers of actual heads that could probably be found on here. Show those to them, and then tell em to go back to bolting on $3000 superchargers to 2000 GT's in order to keep up with a bolt on LS1.

Jason