Mystery Alum SBC heads

General engine tech -- Drag Racing to Circle Track

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Mystery Alum SBC heads

Post by BOOT »

Found some heads on ebay that said they were one thing but pictures tell me they are not what they say. I think they look like Brodix IK heads but idk

Vid I made to show comparisons to other heads https://youtu.be/abDghoGRZ6U

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Re: Mystery Alum SBC heads

Post by Bob Hollinshead »

Boot, if you see any part numbers on those castings let us know
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Re: Mystery Alum SBC heads

Post by af2 »

They would say Brodix. Those chambers are not!
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Re: Mystery Alum SBC heads

Post by BOOT »

They ain't Brodix but the chambers look close enough to me
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Re: Mystery Alum SBC heads

Post by ChopperScott »

IIRC, those exhaust ports look like Brodix.
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Re: Mystery Alum SBC heads

Post by Racer97 »

PSM racing heads on eBay maybe
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Re: Mystery Alum SBC heads

Post by 6.50camaro »

They look identical to ProMaxx either their series one or Maxx series. Which are said to be copies of Brodix IK series by some people. It would not surprise me if the Chinese casting copy was back dooring these earlier Promaxx heads. As Promaxx has developed the new Project X series. Just my opinion no facts
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Re: Mystery Alum SBC heads

Post by BOOT »

Actually making my follow up vid atm. One of the first comments on the 1st vid said that they looked like Promaxx and I totally forgot bout that brand, even tho I almost bought a set last winter LOL But went with a diff head(still gotta make that video LOL). They look like Promaxx but aren't(couple small different details), also Promaxx is cast overseas, so others use these same castings. Just like the Dart copy ebay head where several people put their brand name on them.

Saw those PSM heads the other day, look like the same castings.
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Re: Mystery Alum SBC heads

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All I found was some stamped numbers, small #'s on one end and larger on the other. Prob just dates codes. The ebay merchant was a parts warehouse and they use to have a multiple size/lines of their own heads(now just generic ebay Dart copies like most places). When I communicated with them after the purchase, they told me that they had not sold this type in 8yrs or something like that.

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Re: Mystery Alum SBC heads

Post by Bigchief632 »

They're just a generic copy of one of the name brand heads floating around. They appear to be the Brodix Ik 200 heads. They'll have about the same potential, will flow around mid 250 like all the 200 cc knock off heads flow. No mystery. Not sure what you're going to use them on, but they'll work the same as all the others. Flip a coin. The DNA/Pro Header heads, are about the best out of all of them, except maybe now the AFR knockoffs, might be a little better OTB. Once porting is involved, the potential is as much as you care to rework them. They'll flow well over 300 and make likely 700+ hp on the appropriate engine. Kind of ironic, Dart is selling AFR knock offs as "their" budget line, and AFR is selling Dart knockoffs as "their" budget line. Kinda retarded really, and quite comical, but not really. It's a shame they have to do that to survive. It's bullshit really.
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Re: Mystery Alum SBC heads

Post by rebelyell »

which felpro intake gasket fits properly? --- Anything <Smaller than a 1206?
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Re: Mystery Alum SBC heads

Post by BOOT »

rebelyell wrote: Sat Dec 24, 2022 4:13 pm which felpro intake gasket fits properly? --- Anything <Smaller than a 1206?
The used 1205 I have in my workshop was too small, didn't try a 1206 but assume it would fit.
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Re: Mystery Alum SBC heads

Post by rebelyell »

BOOT wrote: Sat Dec 24, 2022 5:50 pm
rebelyell wrote: Sat Dec 24, 2022 4:13 pm which felpro intake gasket fits properly? --- Anything <Smaller than a 1206?
The used 1205 I have in my workshop was too small, didn't try a 1206 but assume it would fit.
Don't hold me to it, but IIRC, 1206 is correct for IK 200.

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Re: Mystery Alum SBC heads

Post by Bigchief632 »

You can "cheat" a little by slotting the bolt holes in the gasket, and slide it up. It works fine that way, and trim the gasket a little.
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Re: Mystery Alum SBC heads

Post by smokie »

Bigchief632 wrote: Sun Dec 25, 2022 10:00 am You can "cheat" a little by slotting the bolt holes in the gasket, and slide it up. It works fine that way, and trim the gasket a little.
That's what I did with my proheader castings. I was told they (the dart copy) have a .100" raised intake runner. That's about right.

Boot, isn't the flo-tek a brodix IK copy? I'm not sure of the chamber on the flo-tek heads.
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