E7 Head work...how much hp?

J

joeymustang

New Member

Mar 24, 2006

13

0

0

Oct 10, 2007

#1

• Oct 10, 2007

• #1

I dont have the $$$ to swap heads right now and a friend of mine is can do my stock cylinder heads. I got pretty much most bolt ons (ignition, intake, exhaust, cam, 650 carb) and i know that the flow on the heads is hurting me. They already have a mild port and polish and angle on the valves but they haven't been cut. Im running stock pistons and I have a nitrous plate that is for 125.

I was wondering if any of you guys have done your stock heads, how much did you cut or what did you do to them and what type of HP numbers did you get?

 

87foxstang

Member

May 10, 2007

0

0

16

Cromwell, CT

Oct 10, 2007

#2

• Oct 10, 2007

• #2

Im not sure what most people do for numbers with the E7's, hell i havent even dyno'd my car yet, but some people here have their P/P E7's in the 12's

 

Ike83

Member

Sep 27, 2006

0

0

17

St. Louis, Missouri

Oct 10, 2007

#3

• Oct 10, 2007

• #3

I'm in the 12s.

 

9

93green_gt

New Member

Oct 10, 2007

20

0

1

Oct 10, 2007

#4

• Oct 10, 2007

• #4

What type of intake and cam do you have, and what does your fuel mielage look like, because I am planning on geting a cam intake and carb but not decided on what exectly it is that would be best. This is for a GT-40 engine off of a explorer.

 

5LugFoxFanatic

LOVE AND PEACE!

Founding Member

May 5, 2002

1,058

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36

Arctic Tundra Hell, Twin Cites, Minnesota, USA

Oct 10, 2007

#5

• Oct 10, 2007

• #5

don't know if this'll help, but I have an 86, swapped out my E6 heads with Thumper's and a ported lower by TMOSS and I gained 45hp and 40lbs.

 

87foxstang

Member

May 10, 2007

0

0

16

Cromwell, CT

Oct 10, 2007

#6

• Oct 10, 2007

• #6

wow that quite a nice gain

 

F

FullAuto

Founding Member

Aug 29, 2002

157

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16

Midwest City, Ok

Oct 10, 2007

#7

• Oct 10, 2007

• #7

I made 262rwhp 328rwtq with ported E7s with stock valves. I used a Performer RPM intake, .513/.513 218/224 114 cam, 1.7 rockers (for .545/.545 net lift), BBK u/e shorty headers, o/r H-pipe. I had all the power robbers like a/c, power steering and the stock clutch fan. I used the stock airbox with a K&N panel filter. It was also through an AOD. The shortblock was stock with >140k at the time of the dyno. This isn't a record or anything, it's just what I did and I was happy with it at the time.

 

S

speedytang

Founding Member

Jul 28, 1999

765

1

17

Marengo,Ohio,US

Oct 10, 2007

#8

• Oct 10, 2007

• #8

My car when it had 115k miles I changed to Ported E7 and Cobra Intake and gained 42 rwhp which with exhaust and BBK headers made 255 whp.

 

Blown331LX

Member

Apr 5, 2005

227

0

16

Chapel Hill, NC

Oct 11, 2007

#9

• Oct 11, 2007

• #9

You can hog out a set of E7's and polish them all day long, spend a 100 hours or $1,000 dollars and still not evenly flow aftermarket heads. Trust me I've made this gamble. The E7 head is a great bolt on swap for the older blocks or the replace the E6 heads but if you want real performance save you money and bite the bullet and buy a set of aftermarket aluminum heads. Trust me you'll be alot happier plus the car will hook better because of all the weight your saving. I spent over $500 have some E7's freshened up and worked, flow tested them after I bought some patriot heads for $850 and they didn't flow but a little over 1/2 of what the PP Alum heads did. Wait for the right set it will be worth it.

 

5LugFoxFanatic

LOVE AND PEACE!

Founding Member

May 5, 2002

1,058

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36

Arctic Tundra Hell, Twin Cites, Minnesota, USA

Oct 12, 2007

#10

• Oct 12, 2007

• #10

fabfordtech said:

You can hog out a set of E7's and polish them all day long, spend a 100 hours or $1,000 dollars and still not evenly flow aftermarket heads. Trust me I've made this gamble. The E7 head is a great bolt on swap for the older blocks or the replace the E6 heads but if you want real performance save you money and bite the bullet and buy a set of aftermarket aluminum heads. Trust me you'll be alot happier plus the car will hook better because of all the weight your saving. I spent over $500 have some E7's freshened up and worked, flow tested them after I bought some patriot heads for $850 and they didn't flow but a little over 1/2 of what the PP Alum heads did. Wait for the right set it will be worth it.

Click to expand...

This man knows. If I were to do it all over, I would have gotten better heads, but at the time I was a broke mofo....

And if I were to do it again, I would skip over a 302 and get a three fiddy juan, oh wait, that's waht I did...EFI and all.