Stock 89 mustang GT heads...Stage III port flowage???

White 89 · March 28th, 2008, 02:19 PM

has anyone ever ported stock 89 mustang Gt heads 5.0. What was the most you could get them to flow. CFM

Is it worth it or just buy another set of heads.

I want heads that flow 260cfm on up @ .500 lift

86_Notch · March 28th, 2008, 04:49 PM

i had an 86 carbed 5.0 with a crower cam , vr jr intake, 650 carb, t 5 , 410s and ported stock heads, it ran 12.20s @ 113 on 275 50 15 drag radials

a buddy of mine had an 85 gt with a stock bottom end , big cam, performer rpm intake, 750 carb, c 4, convertor, 410s, ported stock heads ( the same guy ported my heads too ) and ran 10.70s @ 122 on a 200 shot and slicks

White 89 · March 28th, 2008, 06:00 PM

do you know what kind of numbers it flowed. Did you guys put them on a flow bench?

86_Notch · March 28th, 2008, 06:44 PM

no, the guy that ported the heads really seems to know his stuff, he can do anything, builds awesome motors, fabricates rears, tubs cars, does cages, ports heads and intakes, he's ported a lot of stock heads and he just knows what to do to them to make good power

but i wouldn't attempt to port heads myself , i'd find a reputable guy or just buy some aluminum heads

1slo5.0 · March 28th, 2008, 08:29 PM

Originally Posted by White 89

has anyone ever ported stock 89 mustang Gt heads 5.0. What was the most you could get them to flow. CFM

Is it worth it or just buy another set of heads.

I want heads that flow 260cfm on up @ .500 lift

You will never get 260 @ .500 out of a stock E7 head. 260 @ .500 is a tall order. Good head porters get 200-210cfm @ .500 out of E7 heads. I wouldn't waste my time or money. Been there, done that back in the 90s. By some good heads and be done with it.

JBIGBOOTSY · March 28th, 2008, 09:03 PM

Originally Posted by Darrell

You will never get 260 @ .500 out of a stock E7 head. 260 @ .500 is a tall order. Good head porters get 200-210cfm @ .500 out of E7 heads. I wouldn't waste my time or money. Been there, done that back in the 90s. By some good heads and be done with it.

Damn.... 200-210 is generous, I'd say. 260cfm @ .500 is a tall order even for some of the best "stock style" aftermarket heads. I'm guessing that would be in the high 290s @ .700.

1slo5.0 · March 28th, 2008, 10:50 PM

Originally Posted by JBIGBOOTSY

Damn.... 200-210 is generous, I'd say. 260cfm @ .500 is a tall order even for some of the best "stock style" aftermarket heads. I'm guessing that would be in the high 290s @ .700.

I was being generous. The highest flowing E7s I've seen went 203@.500 on the intake side.

tmoss · March 29th, 2008, 11:44 AM

230 cfm is the most I've seen on E7s by a pro...........maybe someone else can get more but I haven't seen it.

March 28th, 2008, 02:19 PM	#1
White 89 Enthusiast Join Date: Oct 2007 Posts: 825 iTrader: 0 reviews	Stock 89 mustang GT heads...Stage III port flowage??? has anyone ever ported stock 89 mustang Gt heads 5.0. What was the most you could get them to flow. CFM Is it worth it or just buy another set of heads. I want heads that flow 260cfm on up @ .500 lift __________________ 1989 mustang GT 5.0

March 28th, 2008, 06:00 PM	#3
White 89 Enthusiast Join Date: Oct 2007 Posts: 825 iTrader: 0 reviews	do you know what kind of numbers it flowed. Did you guys put them on a flow bench? __________________ 1989 mustang GT 5.0

March 29th, 2008, 11:44 AM	#8
tmoss Regular Join Date: Jan 2007 Location: St Louis, Mo Posts: 382 iTrader: 0 reviews	230 cfm is the most I've seen on E7s by a pro...........maybe someone else can get more but I haven't seen it. __________________ 88 GT Vert 5spd, 3:73 gears, Explorer intake/65mm TB, Explorer Ps, Manley race 1.85/1.55 valves, 1.7/1.6 stud rockers, stock cam +4 degrees, MAC Jet-Hot coated shorties. 277RWHP/330RWTQ www.fastlanecars.com http://tmossporting.0catch.com/

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March 28th, 2008, 04:49 PM	#2
86_Notch Hardcore Enthusiast 1986 lx notch 9.98 @ 135 Join Date: Mar 2007 Location: Delaware Posts: 1,421 iTrader: 0 reviews	i had an 86 carbed 5.0 with a crower cam , vr jr intake, 650 carb, t 5 , 410s and ported stock heads, it ran 12.20s @ 113 on 275 50 15 drag radials a buddy of mine had an 85 gt with a stock bottom end , big cam, performer rpm intake, 750 carb, c 4, convertor, 410s, ported stock heads ( the same guy ported my heads too ) and ran 10.70s @ 122 on a 200 shot and slicks

March 28th, 2008, 06:44 PM	#4
86_Notch Hardcore Enthusiast 1986 lx notch 9.98 @ 135 Join Date: Mar 2007 Location: Delaware Posts: 1,421 iTrader: 0 reviews	no, the guy that ported the heads really seems to know his stuff, he can do anything, builds awesome motors, fabricates rears, tubs cars, does cages, ports heads and intakes, he's ported a lot of stock heads and he just knows what to do to them to make good power but i wouldn't attempt to port heads myself , i'd find a reputable guy or just buy some aluminum heads

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