Porting Speedmaster Procomp SBF Heads

[@drcolster]

Top Job Eric.. the customer should be more than happy with those gains...

[@raymondleathers5921]

I did a set of the older procomp a few years back. I dont have the flow numbers on hand but I remember my .400 was about the same and they were 298@.600. I didn’t go as far with them as you. All I did is fix the short turns, open the pinch like you did, blend the seats to the bowls best I could and fix the chambers. Car ran good. It was a bracket car. Ran 10.0 in a 2800lbs fox.

[@ThaaBestEver]

how are they holding up i see they are on sale for 1200$ was considering

[@raymondleathers5921]

Guy sold the engine after racing it for a season. It was his first drag car. Basically built a cheap motor to see if he liked the sport and then built something better. The heads were bought bare and had good valve and it was naturally aspirated. They never had any problems as far as I know. If you going to buy a set assembled and bolt them on stay far away from them. They will fail. They come with the worst hardware I’ve ever seen.

[@Jmoffitt]

Did you leave the 2.02 valves? What exactly did you do to the chambers?

[@SquarebodyStuff]

I just ordered a pair of the Speedmaster 190 DNA sbc heads on the Ciber monday sale. I hope they are decent. They'll definitely be better than the L98 128 castings I was planning on using on my 339 stroker build. Thanks for taking the time to show us all the info you do. It really helps us DIYers.

[@markjarvis1432]

As far as I can see the pushrod bulge isn't the main issue. You've rectified that as far as is feasible. The real problem that remains is the spark plug boss hindering inlet flow at all lift points. I think if the heads were mine, I would machine up some thick copper washers in a lathe to fit under the plugs. Perhaps an eighth thick, and then gradually cut back the intrusive plug boss. This is of course dependent on plug thread depth in the heads. An alternative to plug spacers or in combination with them would be shorter reach plugs if these are available. A really interesting video which discusses problems any head porter might face. Keep up the good work.

[@rogermoore7644]

I really appreciate your honesty.

[@Mike62501]

Absolutely keep it up!

[@donaldhalls2189]

That's a lot of work to do to a head you would think it would be less work, thanks for the video and all the information, all the best to you and your loved ones

[@keyworxautolock8235]

I made a tool that tells aprox the thickness of pushrod pinch material and bolt material closeness based on the Helgeson tool idea. It has a center fulcrum and an equal length arm with two equal distance posts. One post goes in the head and the outside gives you an idea how close you are to breaking through. I work mostly with Olds heads.

[@Dynodon64]

David Vizard has a very simple home made tool for measuring the wall thickness in the intake port to pushrod hole. Look into it.

[@patrickwendling6759]

Thank you for you honesty and knowledge.. USA 🇺🇸 USA 🇺🇸

[@jasonmorgan336]

Just got a set of these and really hated to see how the castings were around the pushrod tubes.. I’m probably going to try to clean them up a bit and work on the chambers too. Thanks for the video

[@erictimmins9387]

Brass block backer when welding aluminum in area you cannot get in to grind

[@bdugle1]

In that pushrod situation, seems like a mill operation could take the allowable material away safely, leaving whatever thickness you’d be comfortable with. The oval pushrod slot should be in the same place for each cylinder (you’d think, anyway), so setup shouldn’t take forever. What you found with your finished product was really good, though. Thanks Eric!

[@echota23]

The best way is to drill out the pushrod journals and drive bushings in place. Then open up the sides of the intake runners.

[@elmerfudpucker3204]

Glad I'm not the only one that's had this situation with PC Ford heads. Every one I've ever worked on has some kind of problem with the pockets, pushrod alignment, and/or just plain low quality machining. I think the smallest intake I have ever been able to use to straighten one of these heads up, has been 2.055 DIA. Lots have had to have 2.08s, and some even bigger. Makes for migraines when trying to get your percentages right.

[@79beans347]

Surprisingly I was able to grind those humps flat without busting through but I was nervous about it 🤣 I got it up to the width of the port and stopped without going any bigger. I have ported on a few sets of heads but Im far from being close to any league that youre in 🤣😂 you are a superman compared to me 🤣😂🤣

[@timothybayliss6680]

I don't think I would bother cutting it 0.02 to get back the couple CCs. Its flowing so much more now you aren't going to miss that tiny bit of compression and leaving that material there gives you a clean up cut in the future

[@plumbs7199]

I’ve had a set of speedmaster 3 v clevo heads since 2006 . Have just freshened them up . But bought them bare and then had them ported and filled with top US named stuff . Flowed 340 cfm .600 from memory. But that’s the inherent design in clevo heads . But buy them bare !

[@Turbo4Joe363]

Less expensive Chinese copycat junk heads that cost a bunch of money to make them work right. You did a great job of fixing all the problems as best as possible. Why don't people just buy AFR or TrickFlow SBF heads to begin with?

[@cgarris8674]

I was convinced that these heads were going to be Eric's kryptonite... I stand corrected, he made respectable numbers with them!

[@billbrenick4346]

I am currently porting this exact head for a budget build 408. Can you detail out what you did with the rest of the exhaust port? Also, why did you decide to leave the spark plug boss mostly untouched? I knocked mine down quite a bit more than you. Thank you! Sorry I missed you at PRI

[@meangenevstheworld.7773]

Wouldn't the gap under the valve seat be ok since air is traveling in ?

[@timothyarnott3584]

Hey Eric, Tim here, was watchin a David Vizard vid (i'm sub'd to his chanel), and he brought somethin you dont normally mention.......the "Discharge Coeficient".....you must use it, just dont talk about it much......but i'm curious how u've dealt with that figure on ur porting.......cc's, and flow (which everybody cares about) are NOT the end-all, and i know you know it.......just curious on ur thoughts on the discharge coeficient for various heads you do.....TY sir!!!

[@WeingartnerRacing]

I talked about it in the video about using larger valves. In short it’s not the most important thing. In this situation I used a larger valve to fix a worse problem

[@chevyrc3623]

Wow that is an impressive gain

[@filipewilson1842]

Hi Eric, how do you find the Ford performance X2 heads? Can they be made to make good power on a small ci motor?

[@tracycurtright2671]

I know shops that won't let them in the shop, even for a valve job.

[@geraldwhipple5389]

Wondering how they compare to the procomp sbc heads

[@fordsaretampons]

Wow, big improvement! Have you ever ported the speedmaster bbc oval heads? Was contemplating doing them myself but may be over my skill level

[@WeingartnerRacing]

Nope. 99% of the time I refuse to port procomp stuff.

[@brollins1976]

Can you do some old afr 185 outlaw sbf heads

[@garydent6056]

Have my own auto machine shop and I tell customers all the time your savings on heads will cost you on my end! I have to work harder for cheap parts!

[@richardmoerke9329]

Dam!!! Got the head for 50 . Spent 1000 to fix. Wow brother good luck! The thing I keep saying is how do you get them the same?

[@Go4BrokeOffroad]

Those look like my current 306 heads. 10 years old and going strong. I'm thinking I should order some pro Maxx sbf heads for a 408 from you

[@jeffprice2008]

Eric how much I'm I paying for that much work

[@ThaaBestEver]

is this the 210cc or 190?

[@ts302]

Great work Eric. I'm watching you explaining the issue with the pushrod bumps and thinking would epoxing the opening smaller to get a straight wall vs what you did, how much flow would be lost with the smaller opening?

[@WeingartnerRacing]

Hard to say.

[@dondorfman3951]

Nice video, what % do you run on the exhaust seat?

[@juansandoval9282]

In previous videos you said you would not port procomp heads, what's different about these heads ?

[@WeingartnerRacing]

He just sent them in. If someone calls I turn them down. I guess I felt bad to ship them back but maybe I was just in a good mood that day.

[@caseym3118]

You think the 208 vs 202 made a difference in flow ?

[@jcnpresser]

Looks like the promaxx would be a better option.

[@gavinhenryproductions3389]

Are speed master heads worth is if you buy them complete for $500 and know how to do some port work yourself I’m not no machinist but I’ve ported some sbf heads that I planned on usin till I bought some speedmaster 3037 heads for $500

[@vrm86gt]

great results!

[@flinch622]

Nice rescue. Man, that pushrod area of casting is bizarre. What ford guys have to put up with sometimes...

[@brentmcmillan4347]

Hi Eric, Which Pro Comp/ Speedmaster Head Is this set? Do you have the #'s please? I have a set I bought that look much better

[@caseym3118]

They are 3037 I have a set . My seats are in good shape not like the set he had ported. You can get them on eBay.

[@vrm86gt]

you had your work cut out for you on those heads!

[@michaelwalker4799]

you seem to have a larger bowl on the inner side when the high spwwd air prefers cyl wall side why not bias it how air wants not the way you think

[@WeingartnerRacing]

The flowbench doesn’t agree with what you are saying.

[@alltherpm]

Is there any port work u can do on afr220 sbf, the cnc from factory but can they b improved, and if i sent them in for work an u flow with intake and recommend a cam grind?

[@WeingartnerRacing]

I haven’t seen one of those yet.

[@riggedandjimmiedgarage7268]

Every time I've opened the throat past 89% high lift numbers increased with the low lift number decreasing. I like to stay in the 88-89% range.

[@jeffjones4040]

You are a Superman! You made something out of nothing. I would like to see what you could so with the Promaxx heads.

[@coryman4245]

Couldn't you just weld up the bowls a little then grind to get rid of the ridge under the seat

[@josenoyola9851]

“Doesn’t want to do a set like these again” Customers order a dozen of these 😂

[@big3fan916]

All of the time = money you spend fixing these heads wouldn't you be better off starting with a better = more expensive cylinder head ?

[@alltherpm]

Y would someone buy cheap heads and spend more then buyn them on porting and still flow less then afrs, good biz for u tho, nice work eric

[@robertwest3093]

And they want top dollar for these things!

[@the496elcamino]

Pro comp seems like a design disaster in metal.

[@joey6119]

If you are gonna port and complaine about them instead of offering solutions to problems have a cutout

[@WeingartnerRacing]

I gave solutions.

[@shanerorko8076]

Don't you mean poocomp.

[@sharons9367]

That’s what they are 😂

[@hoey3510]

Procomp is junk

[@sharons9367]

Can’t believe they still sell this garbage

[@biscuitboy3617]

I just don't care for SpeedMaster/ProComp Chinese junk. It takes too much corrective machining to make it right, and even then, it's still a bunch of compromises just to have a decent working part.