351w heads

[86bluecobra]

i have a set of 69 windsor heads and my question is do they flow better then the systemax II heads i have on it now? or are they simular? i know the systemaxII heads are 165cc intake runners and 1.90 and 1.60 valves. not sure about the 69 heads.

 

[Modular2v]

i just slapped on a pair of 69 heads to my 331.... I dont know about you but my exhaust valve is 1.73. The intake valve is probably similar to that of the holley heads

 

[86bluecobra]

how does the engine feel?

 

[86bluecobra]

pretty simular set up you and i have but i have 20 more cubes is all.

 

[95GTAODE]

The 69-70 D00E Winsdor heads are pretty much on par with standard GT$) iron heads.... That being said, the Systemax heads are WAY better, plus being aluminum, they're lighter.

 

[Modular2v]

pretty simular set up you and i have but i have 20 more cubes is all.

yeah im putting a nitrous system on it too....i hope to be running mid to low 11s

 

[Modular2v]

The 69-70 D00E Winsdor heads are pretty much on par with standard GT$) iron heads.... That being said, the Systemax heads are WAY better, plus being aluminum, they're lighter.

uh the 69 heads are FAR above your standard e7 head....maybe you meant to type GT40P? im talking about the c9 heads not the d00e

 

[95GTAODE]

HahA. Yeah, I meant standard GT40 irons. The C9 and D0 heads are essentially the same performance wise. Regardless, the Systemax heads he already has outperform them easily.

 

[Modular2v]

HahA. Yeah, I meant standard GT40 irons. The C9 and D0 heads are essentially the same performance wise. Regardless, the Systemax heads he already has outperform them easily.

the c9 heads are different in nearly EVERY aspect...port volume, valve size and cc volume. I have both at the house....the e7 heads are even better than the d0 heads

 

[bluevenom867]

the c9 heads are different in nearly EVERY aspect...port volume, valve size and cc volume. I have both at the house....the e7 heads are even better than the d0 heads

Have you looked at a set of D0OE heads befor?

There alot better than E7's nad they are ready for stud mount rockers.

Reason I know is cause I got a pair in shop,there my test porting heads.

 

[Modular2v]

Have you looked at a set of D0OE heads befor?

There alot better than E7's nad they are ready for stud mount rockers.

Reason I know is cause I got a pair in shop,there my test porting heads.

when i say d00e heads i mean post 70 heads.....they are trash! funny you say that the do heads are also my test port heads lol

 

[85_SS_302_Coupe]

C9s are among the best stock castings Ford ever made, only slightly lower performance than a GT40P head, and the biggest advantage the P has is a better plug angle for more efficient cylinder combustion. I've got some ported/polished C9s waiting for new valves, 1.90/1.60, and they're going to rip like a mofo. That said though, my C9s don't have stock size intake valves and have been thoroughly worked over.

 

[Modular2v]

C9s are among the best stock castings Ford ever made, only slightly lower performance than a GT40P head, and the biggest advantage the P has is a better plug angle for more efficient cylinder combustion. I've got some ported/polished C9s waiting for new valves, 1.90/1.60, and they're going to rip like a mofo. That said though, my C9s don't have stock size intake valves and have been thoroughly worked over.

my c9s have been ported with bigger stainless valves also..im hoping they rip

 

[86bluecobra]

so basically it would be a bad idea to throw the old winsor heads on my stang and the holley heads on my f-150. i guess once i get that line of credit payed off ill buy a set of afr 205's for my mustang then put the holleys on my truck. mightaswell go over kill on the heads for now since the 408w is in my future.

 

[86bluecobra]

btw i have always wondered will the afr 205's work with my dished pistons? they don't have valve reliefs cut into them but they seem like a deep dish in em.

 

[bluevenom867]

They have a 2.05 valve (intake) I think they would work.

 

[86bluecobra]

lol man would it ever suck if they didn't since my old heads would probably be installed on my truck before i got my new heads.

 

[86bluecobra]

i guess i should just order them and install and see if they clear. i guess yakking to the afr guys would also be a good idea. btw did you read about the 1000hp + motor in the new 5.0l mag a stroked 427w with a blower. 90 octane gas and 17 pounds of boost.

 

[bluevenom867]

i guess i should just order them and install and see if they clear. i guess yakking to the afr guys would also be a good idea. btw did you read about the 1000hp + motor in the new 5.0l mag a stroked 427w with a blower. 90 octane gas and 17 pounds of boost.

Lol,yea the only way your gonna know is if you have them.I bet they would fit though,plus you can always get a thicker gasket.

And no I didnt see the new 5.0,I saw the build-up summery issue though.I doubt that was on strait 90 octane though...

 

[86bluecobra]

thats what they claim. they say on race gas they would have turned out 1300hp. btw where is the cheapest place toget afr's or should i just go buy vic jr's.