BBM heads

[Stangman]

So Blair at The reunion there were 4 different sets of heads, we did speak about one set of heads which I think was the best of the 4. But if you could tell us the difference between the sets so we can all know the difference for anyone that was wondering. I’m sure they all are good but some insight would be great.

[CaptCobrajet]

***This is NOT an advertisement.  I did not ask Joe to post the question.*** There are several options.  I like to talk to folks who are interested about their specific application, and point them towards the best solution that fits the need and/or budget. Here are most of the combos that are on the shelf as of this post. 

* As cast, 2.150/1.660 valves. This is a “U” combo, unported but blended nicely. Lowest cost
* Intake cnc, exhaust as cast 2.100/1.660. This is a “C” combo.  Super head for 390-ish bores
* Intake cnc, exhaust as cast 2.200/1.660. This is an “A” combo. Works on 4.080 and larger bores
* Intake cnc, exhaust cnc 2.220/1.680. This is a “B” combo.  Recommend for 4.250 bore or larger, open exhaust
* Intake cnc, exhaust cnc 2.200/1.680.  This is a “D” combo. 428 or larger bores, open exhaust
* Intake cnc, exhaust cnc 2.100/1.680. This is an “E” combo. 4.100 or larger, open exhaust
* Intake cnc, exhaust cnc 2.250/1.680. This is an “F” combo. 4.310 or larger bores recommended, open exhaust
* “B” with cnc chamber. For 4.310 or larger bores.
* “F” with cnc chamber. For 4.350 or larger bores.

These are not the same castings as BBM heads purchased before March 2024.  I redesigned the ports before this casting run.  The new castings have BBM and C8OE-BP cast on the exhaust side between the runners.  The port location on the intake flange is the same as before, but the ports are quite different.  Intake flow ranges from 320 to 360, exhaust flow 235 to 260, both depending on which combo.  Obviously, the U are the least expensive, and the F with cnc chamber are the most expensive.  A person should call or email me to discuss the best version for their intended use.  I will say that the U head is a good choice for 390/445 engines with mild to moderate camshafts when price is a major consideration.  There are pictures of these heads on Facebook at Blair Patrick Enterprises.

We price the heads “ready for springs”.  We are happy to spring them according to the need, with high quality packages that we use, and are proven to work, and last. This prevents buying assembled heads and paying for hardware, and then having to change and spend more money.  The rocker pads are OE location.  No milling or oddball stands.  There are EZ locks in the rocker pad and exhaust bolt holes.

[Stangman]

Thanks Blair sorry if I put you in a weird situation. Realized after I posted but to late then. Like arguing with the wife and your words slip out and you want to take them back. “BUT”
So there is really 9 ways to go. There’s too much info to remember without seeing it laid out I don’t care who you are. Ok much better. So what happens to the B and F head to make if for the larger bores on the bottom of list. And I would assume they come in different CCs.
Another question do some of these make more torque than the others do they all have the same intake runners CC wise I guess besides the porting.

[Tommy-T]

A little off topic to this thread but not totally.
The original or older BBM head is a high quality very nice cylinder head. I'm am absolutely sure that Blair's makeover of that head is an improvement.
My particular heads were the early versions with SI valves, a good valve job, and bowl blending about an inch in. No other port work.
The results were 305@.600 lift. Pretty impressive for valve 'n bowl work.
The work was preformed by Scott Foxwell.