[odie22]

i have a question with the e7s and the windsor heads? i would like to know what would be the pros and cons of the E7s vs. the WINDSOR head... thanks for the help
-odie22

[White Thunder]

you can make more power with a set of 351w heads...but not near as much as a good aftermarket....

[flattusmaximus78]

When I was n/a with a cobra intake fcam and p heads. I ran my buddies lx on welds with the same set up except w heads. He pulled a car or so on me only.

[White Thunder]

Originally Posted by flattusmaximus78 When I was n/a with a cobra intake fcam and p heads. I ran my buddies lx on welds with the same set up except w heads. He pulled a car or so on me only.

drivers mod? lol jk

[White Thunder]

Stan Weiss' - Cylinder Head Flow Data at 28 Inches of Water

stock e7 at .500
159/109
68.6%
63.9/66
189/196
.389/.328
327 hp
355

351w at .500
189/115
60.8%
71.1/61.7
211/183
.373/.271
389 hp
422
474

and

177/142
80.2%
66.6/76.2
197/226
.35/.335
364 hp
395
444

two 351w's out there im sure it goes by year but i dunno

[flattusmaximus78]

Originally Posted by White Thunder drivers mod? lol jk

nice lol. On a side note though, just average drivers.

[White Thunder]

meh arent we all

[BlessedHellride]

I'd throw a set of GT 40 heads on my ride if I were on that tight of a budget. You can get them at every junk yard and all over ebay and craigslist. Cheap heads that will outflow the shit out of an E7. The 351w heads are not worth a damn either. Unless they are like a 70 model or earlier I think. So, you do the math. Spend 200-300 hundred dollars on a set of GT40(p) heads at any junk yard any day of the week or spend days maybe weeks and alot more $ looking for a d0OE head.

[odie22]

iam not sure what all of the head codes are i have a set of the windors head ready to go with 1.6 roller rockers. i know my friend ran the autolites 3924 spark plugs if this helps

[BlessedHellride]

a 3926 is a hotter plug, it's what I run

[odie22]

i have nitrous on my car so i need a colder plug

[BlessedHellride]

<~~~ Runs a 125 shot on his turd with same above mentioned plug. So far so good. I spend more time off the bottle than i do on it, way more time.

[White Thunder]

id close the gap some too

[odie22]

what would you set the gap to

[1slo5.0]

Originally Posted by odie22 i have a question with the e7s and the windsor heads? i would like to know what would be the pros and cons of the E7s vs. the WINDSOR head... thanks for the help -odie22

This is not even worth discussing. The 69-70 Windsor head is better. All other Windsor heads are junk. GT40P heads are a better option if you are stuck on using a factory head.

[odie22]

Originally Posted by 1slo5.0 This is not even worth discussing. The 69-70 Windsor head is better. All other Windsor heads are junk. GT40P heads are a better option if you are stuck on using a factory head.

well sorry for asking ill make sure to google my questions from now on

[White Thunder]

i wouldnt close the gap any more than .035 id go somewhere around .040

if your not running nitrious alot i would but a set for when you do...1 step colder gap them to .040 and keep another set, set to factory specs...i think its .055

[1slo5.0]

Originally Posted by odie22 well sorry for asking ill make sure to google my questions from now on

Ok. I'm sure if you look long enough you will find someone that says factory Windsor heads are the best thing since pierced nipples. The facts are that factory Windsor heads suck. The 69-70 (and maybe the 71) heads are ok but still not a GT40 head. All of the rest of the 351W heads are identical to the 302 heads except for the differnce in head bold hole diameter. 302 is 7/16 and 351W is 1/2. A 351W head requires a reducer bushing when used on a 302. As far as Pros and cons go, there are no pros to any 351W head other than the ones I listed. The only pro of an E7 head is it is better than the 351W heads (except the 69-70 C9-DO heads). The cons for both the 351W aned E7 heads are lengthy. Poor flow, small valves, small ports, etc.

[1sl0w88]

Darrell,
Can the GT40P heads be used on the 351W ? Just drill out the bolt holes right?

[1slo5.0]

Originally Posted by 1sl0w88 Darrell, Can the GT40P heads be used on the 351W ? Just drill out the bolt holes right?

Yeah, they could but why? You might as well keep a 302 if you are going to do that. There is no point in taking a cylinder head that is less than adequate for a 302 and putting it on an engine that is 16% bigger unless making power is not one of your goals. A 351 will not breath very well thru that head. More cubes needs bigger heads, bigger intake, etc.