hi ,

anyone using this heads and liking the results ?

dont need to hear all about your aluminum heads , just interested in what these can do.

thank you !

Unported, basically like stock heads.

Ported…….depends on how good the porting is.

I'm running a set of stage 6's. Bought a complete motor here on moparts a 500" 440 based few years ago and they were on it. Was going to be a street/strip deal but traded cars and went full race. The porting was done by compuflow back in the day. Are 2.25 intake and can't remember the exhaust. My car is light, and cam is mild but running 6.40's at 106. My next motor is a full on Indy motor (Callies block and Indy 325 heads, 540) when it's time to pull this, they are working now but for reasons below I won't continue with them. For me these got me started back, and this was mainly a "budget" based in choice on running them. I think they can make some power, just depends on budget and what you want to do.
- valve pockets are deep and hold oil
- have to run spacers on an RB and then with that valley covers are not easy to come up with to seal off everything, bent the thin one that came with the motor when I added a vacuum pump, ended up using a SST one from Hughes to get things to work
- They are older and have been ran, heli-coils in at all the intake manifold holes and they have been redone and just a pain
- My engine guy couldn't find a replacement 2.25 3/8 stem intake valve so had to clean them up and re-use the old ones
- They are no longer supported

I had a Duster with stage V heads 20 years ago. PRetty basic stuff, 470" stroker, 12.5-1 smallish roller. Mine were ported dont recall any numbers from that. But thew car went 9.69 best at 3070lbs.

If you are getting such a nice block, get a B-1 head

Indeed.

Don Little had a pair of Stage V BB Mopar heads for sale a couple of years back. He did one intake port and got around 290cfm out of it with the stock 2.08" intake valve. I guess he figured out the Edelbrock heads would be easier to build for NHRA SS. I think they are good for NHRA Stock and SS, probably too much work for other classes.

An all out build using iron ported heads in a 3000 lb race car should be capable of hi 9s. It is all about how you want to get there. My prioritys
Max cube stroker
Set it up for 2.25 intake/1.81 standard location valve heads. This allows everything from factory 906 type heads to Indy 440,-1 heads in the future. And from an easy 500 hp to as much as 900 hp if you go nuts.
The nice thing about these heads is actually thier limitations. Put them on a 540 cube shortblock, use a converter that will flash about 5000, shift somewhere around 5600 to 5800 and you have a motor that is fairly easy on parts yet still have the capability of low tens high nines depending on weight . My first decent bracket motor 43 years ago used 906 ported heads, a hogged out tunnelram and two 800 carbs, no quench, 11/1 compression, yet still went 10.20 at 136 mph with traction issues. At the time i ran a 4.10 gear and 33 x 14 slicks.

Way back in the Tech Archives there were 2 sets of Stage V's that were ported,

One set by Dwayne (Fast68Plymouth) and the other set (that were mine) was done by Chuck Millen at Muscle Motors.

Ported I believe they flowed as good (or slightly better) than the Edelbrock Performer RPM's that had only recently came out. This was maybe 2005 or 6?

both sets went ~260-ish at .400 and 280-285-ish at .500.

As a general rule, 260 @ .400 is a very good flow number for a standard port window High torque B Wedge motor. With the right cam and compression it's enough to get you safely/easily into the 550-ish HP potential. Which is good enough for a lot of non racer combos.

I put my set on a very strong running 508 RB in my 70 Charger R/T, and after a few years I sold that motor to another Moparts Member PHJ426 put a six pack on it and dropped it in his 72 Roadrunner. The motor certainly didn't lack for torque or Horsepower.

They added material to the port roofs and floors and IIRC they had a slightly improved short side radius, particularly on the exhausts.

If you dig into the Archives I'm pretty sure the thread is still there, there were a lot of good "nuggets" that applied to BB wedge porting in General. I would think a set of the Muscle Motors Stealth heads would be more economical now, but if I had a set available and wanted to look stock....

Here you go...prolly everything you would ever want to know:

http://www.moparts.org/Tech/Archive/bb/55.html

Just noticed..this was back in 2003!!! 22 years ago!!

Glad to see a bunch of us old "Moparts geezers" are still here...and still friends too.

Good for a NON COMPETIVE F.A.S.T. build ...