Speedmaster heads track results ?
 

I know there are several older threads on these affordable heads and I try to keep up on others posts related but after 2 years I still have not seen any track results or impressive performance done with any yet. Covid screwed up a lot of folks plans over the last year but come on the tracks were open. I have only seen a mild 400 something horsepower dyno thing that didn't seem to be anything a regular iron D port could do so that's why I am asking. Were halfway to maybe yet another big sale clearance in 6 months from now or so that's why. Thanks

I’m interested also….

By the time you get them the way you want them to be performance and reliability wise you would have 80-90% the money of a good E head. There is that lip just inside the intake port you have to deal with, costs money, time. If you can not get them without the pushrod holes making them a wide port is not cost effective.
America baby.

……or hp head, best bang for the buck. Just another option!


GTO George

Yes , I saw some had to do a good bit of work to improve certain things. This was more also of me just curious to see the results of those that did get them.

KRE is my plan still, I am only going to manage to do my new short block this summer maybe KRE swap next year. For me not to have to replace my D port
1.75 headers I lean towards some KRE 310 D ports with 74 cc chamber and that allows me to use my warrior intake (maxed out) or Torker II with about much issue.. Would want to be able to crack the 600+ hp mark .. My new solid roller I got 2 years ago to max out my 270 cfm D-port 16 heads that has not been tried yet is a Howards 261 269 108 .620 .620 so I will see how that does with new short block vs my old solid roller street cam ultradyne 242 252 112 .566 .566 using my #16 heads

Although I really have a boner for the as cast 330 cfm high ports in a 80 cc chamber it would be solid pump gas combo on 93 octane flat top 467 cid but then I have t get new round port headers and probably the recommended intake to match so it snow balls into a S ton of money above the D ports but heck thats a 700 hp set up too

Where did you get your info?
I have 2 sets on my bench right now and they look exactly like a Ehead out of the box.
In fact the castings looked better than the 3 sets of Eheads I have.

These heads will go 300CFM really easy with just a sand paper roll clean up, and a little work in the intake bowl. I am sure they will go much more but 300 was all I needed for the combo we are building.

A photo and info from this earlier thread?
Maybe Speed master is stepping up the attention to detail -or the pictured port and insert ledge was only on a few sets?

https://forums.maxperformanceinc.com...68#post6232368

Interesting, The sets I have do not have that step in the port.

Got it right here on PY.

I just dynoed my other motor with the speedmaster heads and they
matched my e-heads exactly, And the e-heads have 2.19 It and 1.77 ex.
The speedmasters still have the stock valves in them and less comp. and a
little less flow. I,ll get the pics up of the dyno sheets tomorrow or the next day.
So far I couldn't be happier. 624 hp-597trq the first one made 625.6 hp
and 634 trq. Not bad for a couple of pump gas motors.

GT

Hope this works It's been a while

GT

That's quite more like it , as they said they easily hit 300 cfm plus , how much work was done to your out of the box ?

Dyno Results
 

Can't remember how to post pics Dag Nab It

GT

I've got 2-3 time more money in the E-Heads just to match the power of the
Speedmaster heads. I'll be buying the SM heads from now on, I like the
quality A lot better.

GT.

I have a set I just put on a 455 bone stock out of the box. I was going to match everything up but figured with all haters I was gong to wait and post results with the untouched set. It’s a small hyd roller I put some solid rollers on because I had them. Plan is to have it in car for Norwalk.

Forgot this is a $1100 Black Friday set with a $100.00 Black Friday intake gasket matched my me to heads got my fingers crossed.

What is the whole combo?

OK, give up the actual number in $ you have in the E heads. CHINESE quality a LOT better ??
4th of July is this weekend dude.

Which American company did you give your money to? I thought you bought your e-heads second hand?