Brodix Alum Heads

They've been in my 351C aluminum heads database for years. The BF300
series Brodix heads are C302B replacement heads. Don't confuse them with
the BF200 series which are Yates competitors. When they first came out
there was a rumour they were going to offer a pre-ported version but it
never materialized. Also, they were orignally offered in a rockershaft
only version but Kelly Coffield bought a set that were set-up for stud
mount 351C rockers.

Dan Jones

Brodix BF300 and BF301 Heads
----------------------------

The Brodix BF300 is a replacement head for the popular Ford Motorsport C302B
race head which is no longer produced. According to Brodix, the BF300 series
heads use "all existing hardware from previous canted valve Ford heads" and
should be a bolt on for those running C302, B351, or A3 heads. Brodix lists
two rockershaft systems for the BF300 series (Jesel KRA 02211 and T & D 7200
or 7201). There is apparently a version that will accept 351C roller rocker
arms. Cant angles are listed as 9.5 degrees x 4 degrees on the intake valve
and 9.5 degrees x 3 degrees on the exhaust valve. Standard valve sizes are
2.125" intake and 1.600" exhaust. Pre-Yates Ford Motorsport and Edelbrock
high port intakes should work. Seats are ductile iron (compatible with
unleaded fuel) and guides are phosphorous bronze. The BF301 has Nascar part
number 3941078.

Brodix BF300 and BF301
----------------------

Part CC's Int Exh Int Exh Description
Number Port Port Vlv Vlv
Vol Vol Dia Dia
CC's CC's In In

Brodix BF300 65.0 196 ??? 2.125 1.6 see notes

Brodix BF300 Head Notes:
-----------------------

1. Intake port dimensions are 1.350" x 2.200", compatible with Fel-Pro
FP1265 intake gaskets.
2. 2.125" diameter by 5.300" long valve gives 1.9" installed height (intake).
3. 1.600" diameter by 5.165" long valve gives 1.9" installed height (exhaust).
4. Recommended head gaskets are Fel-Pro FP1021.
5. Recommended head bolts are hardenend cap screws.
6. Recommended exhaust gaskets are Fel-Pro FP1431.
7. Accessory bolt holes are drilled.
8. Spark plug starting points are Autolite 51 alcohol and Autolite 52 for gas.
9. Spring pockets are 1.750" (out of the box)
10. Standard Intake Valve Seat: P 2.230 3/8
11. Standard Exhaust Valve Seat: P 1.800 3/8
12. Standard Valve Guide: SH 545 11/32 PWIL
13. Valve Angle: 9.5° x 4° intake AND 9.5° x 3° exhaust
14. Flat Milling Yields: .0055 PER cc

Flow numbers from Kelly Coffield's small port Brodix heads:

Valve
Lift Intake Exhaust Exhaust
(inch) 2.135" 1.655" w/pipe
0.100 69.25 63.37
0.200 143.02 129.99
0.300 193.77 170.08
0.350 233.71 ------
0.400 241.46 191.14
0.450 262.33 196.00
0.500 280.22 200.86 230.
0.550 298.1 205.72 235.
0.600 307.5 210.58 240.
0.650 318.2 213.82 243.33
0.700 325.33

This head is Brodix's version of the C302 head. A good head. I've read complaints that the heat treat on Brodix heads is not good and therefore their longevity is affected, but I have no experience to back that up. I believe out of the box the C302 heads have smaller ports than the Brodix, which come out of the box "pre-ported" compared to the C302.

I'd bid on them if I had the $$ laying around. If somebody is in the market for alloy heads for a max effort motor, the Brodix BF300 heads in the auction, Ford Motorsport C302 heads or the small port Blue Thunder heads are the heads to consider.

The Brodix & C302 heads require you to dig up a Ford Motorsport intake to match, and purchase a new set of high port headers; the Blue Thunder head mates to a readily available Yates intake, and can be configured so the exhaust port will bolt straight up to standard 4V exhaust headers.

Your friend on the DTBB, George

(ahh, Dan, we were working on posts at the same time! You've always got the data!)

> I believe out of the box the C302 heads have smaller ports than the Brodix,
> which come out of the box "pre-ported" compared to the C302.

That's not the case. The Brodix has small ports out of the box and is not
pre-ported. The standard valves are actually smaller than C302B heads.
When the were first out, there was a rumor that a pre-ported version was
going to come out but AFAIK it never happenned. Kelly Coffield's BF300's
have the small ports. I think he would actually be better off with larger
ports given his displacement. There is an optimal intake tract velocity
and if you run small ports on a large displacement motor, you can actually
exceed that value and not make as much peak power as you would with larger
ports.

> I'd bid on them if I had the $$ laying around.

When I last checked, they were available new for $1600 (or was it $1800) bare.

> If somebody is in the market for alloy heads for a max effort motor, the
> Brodix BF300 heads in the auction, Ford Motorsport C302 heads

With the small ports, they also work extremely well on the street.
I know of a 377C street stroker that originaly ran 4V heads and switching
to C302B heads (leaving the rest of the short block the same) brought the
lower end of the torque curve (where it came "on cam") down by 1000 RPM
while making more power at the top end.

> The Brodix & C302 heads require you to dig up a Ford Motorsport intake to
> match

The Edelbrock Victor AH-II intake is still in production for these heads.

> and purchase a new set of high port headers;

These are off-the-shelf parts from several Pantera vendors and cost is similar
to 4V Pantera headers.

> (ahh, Dan, we were working on posts at the same time! You've always got the
> data!)

Yup.

Dan Jones

I think this board is graced to have two ford guru's on it, not a dis to all the other contributors, but George and Dan seem to have a wealth of knowledge at there finger tips.
Thanks guys for spreading the knowledge.
Mark

You can wipe the tear out of the corner of your eye now!

quote:

Originally posted by Mark#6808:
I think this board is graced to have two ford guru's on it. Thanks guys for spreading the knowledge. Mark

Mark, thank you for the kind word. George

quote:

Originally posted by Daniel_Jones:
The Edelbrock Victor AH-II intake is still in production for these heads. Dan Jones

Dan, that Edelbrock manifold is designed for a 9.2" Windsor block, does the rear of lifter valley pan have a wide sealing area so it can seal up the inward curving Cleveland block too?

Thanks, George

> Dan, that Edelbrock manifold is designed for a 9.2" Windsor block, does the
> rear of lifter valley pan have a wide sealing area so it can seal up the
> inward curving Cleveland block too?

The AH-II has dual end seal rails on the bottom side like many of the Ford
Motorsport intakes. Here's a picture comparing the bottom of a M-9424-C351
intake for a 9.5" deck and the AH-II for a 9.2" deck. You can see the end
seal rails:

http://www.bacomatic.org/gallery/Fontana-Engine-Builc/C...s_Victor_AHII_bottom

The Victor AH-II also has a Windsor like thermostat neck:

http://www.bacomatic.org/gallery/Fontana-Engine-Builc/C...vs_Victor_AHII_front

which can be removed as shown in this picture:

http://www.panteraplace.com/Pantera%20Pics/dans%20intake%20109.JPG

Dan Jones

quote:

Mark, thank you for the kind word. George

Ditto!

Dan Jones

I'd add that the flow figures Dan posted for my heads had minimal port work. I'd say 5-10 minutes per hole with a fine cartridge pack at most on the intakes. Perhaps a little more on the exhaust ports. I wouldn't have characterized it as much of a port job. More like polishing and light bowl work. Even so, the're pretty much in agreement with the flow data at the Brodix website for ported heads. Considering they were pretty much out of the box, the numbers from .300 to .600" lift were reasonable so I didn't mess with them. BF301s also have lots of stock to port as you desire, and thick decks-rumored to be more material rich than C302Bs in both these respects. They're very similar to C302Bs in almost every way (CC volume, 196cc intake runner, dimensional interface is identical, slightly smaller valve OD though you could go larger). Never heard of heat treat problems with them. I didn't test for this but from the quality of the finish on machined surfaces I'd say they were pretty fair temper.

Kelly.

Dan,
thank you for answering my question.

Kelly,
good to hear from you.

Your friend on the DTBB, George

Thanks George,

Always out here in the e-ether. Nice Avatar.

Kelly