[i82much]

Just seems like people doing new builds are always going with the D ports and I don't really understand why! I have 87 cc round port edelbrocks with the old chamber style in a 505 with old faithful and a performer RPM, I can't imagine anyone driving my car and thinking, "ya know, this thing just needs smaller intake ports so it has more low-end" ...

[Formulajones]

My guess is probably cost being the biggest player lol

[Formulajones]

Originally Posted by i82much

Just seems like people doing new builds are always going with the D ports and I don't really understand why! I have 87 cc round port edelbrocks with the old chamber style in a 505 with old faithful and a performer RPM, I can't imagine anyone driving my car and thinking, "ya know, this thing just needs smaller intake ports so it has more low-end" ...

And that whole "more low end" myth is funny, amazes me that still floats around the internet but whatayado.

[i82much]

Originally Posted by Formulajones

And that whole "more low end" myth is funny, amazes me that still floats around the internet but whatayado.

I mean hey, if I had some really nice headers and was upgrading from iron d-ports to aluminum heads, I don't see spending the extra cost for new headers if you are talking about a 550 hp build, something you can drink and drive daily.

But if you don't have headers already and new round port heads cost about the same as new d port heads ....

[i82much]

Originally Posted by i82much

I mean hey, if I had some really nice headers and was upgrading from iron d-ports to aluminum heads, I don't see spending the extra cost for new headers if you are talking about a 550 hp build, something you can drink and drive daily.

But if you don't have headers already and new round port heads cost about the same as new d port heads ....

Sometimes I say things and just wish you guys would give me the reaction I am looking for ...

[Gach]

I would always go with round ports, and buy headers. D-ports and manifolds are going to be limited. A set of round port heads and a nice Hydraulic cam will make 500 hp, like falling out of a tree. 500 hp in street car is killer. And crazy street able. Thats just me. Are there good D-port combo out there sure, but you can bet they’ve ported. But E-head out of the box will make 500 hp and you don’t need a hydraulic roller cam.

[chuckies76ta]

Originally Posted by i82much

Just seems like people doing new builds are always going with the D ports and I don't really understand why! I have 87 cc round port Edelbrocks with the old chamber style in a 505 with old faithful and a performer RPM, I can't imagine anyone driving my car and thinking, "ya know, this thing just needs smaller intake ports so it has more low-end" ...

Like has been mentioned. Most Pontiac heads came in D-port. It's what we all were use too. Folks would always have had d-port manifolds or headers. Having said that, A lot of folks would have just upgraded to D-Port Aluminum heads if available. There's a reason Kaufman came out with a D-port aluminum Head. and now Edelbrock came out with a D-Port head. You can build a nice 600 h/P street engine with d-ports.