I will be the first to say they are bad ass and will make serious power on any combination matched to them. I was very happy to see someone take the heads I designed and do with them exactly what they where meant for. I designed the head so head porters could take them to extreme levels of efficiency. I truly didn’t expect it so soon but there it is! Bryce and Chad where instrumental in the, “Head porter” version of the Profiler 23° head. They told me what they wanted and needed and Profiler made it for them. Its now a standard part number. That’s the big advantage of having the foundry and machine shop within 100ft of me. I can do just about any MOD the customer asks for and sometimes on the fly. I can’t wait to see what you guys come up with next.- Darin Morgan on the new Pro-Filer AIR Wolf

Hello everyone... I would like you guys to be the first to now about the New Pro Filer CNC ported AIR WOLF sbc cylinder head, developed by Dr J's Performance and Speier Racing Heads. The AIR Wolf will be offered in two sizes a 220cc intake runner and a 245cc .550 offset rocker. Our main focus during the R&D process was to develop a head that would out flow the competition and have the optimum port velocity map. Right now we are putting the finishing touches on the 220cc head, the will be flow tested @ Profiler next week by Darin before we go in to CNC production. If everything goes to plan this is going to be one killer 23° head. We should be able to ship heads late October or early November. These heads will be sold exclusively through Dr. J's Performance and Speier Racing Heads.

220cc Air Wolf Technical Details
Pro-Filer Performance Casting
Material: A356 Primary Ingot Aluminum
Valve Angle: 23 Degree (Intake)
Bore Spacing: Standard SBC
Intake Port Volume: 220cc
Combustion Chamber: 64cc
Exhaust Valve Diameter: 1.600
Intake Valve Diameter: 2.080
Spark Plugs: Angled .750 Reach, Gasketed
Valve Guides: Bronze Alloy
Spring Pocket: 1.625 OD Maximum
Valve Springs: Up to 1.600" Dia
Valve Seats: Ductile Steel
Intake Gaskets: Use Fel-Pro 1206 or Mr. Gasket 5812

Pro-Filer Air Wolf 220 flow numbers with 2.08 intake valve 64cc chamber

Pro-Filer Air Wolf 220 flow numbers with 2.10 intake valve 64cc chamber

UPDATE!!!  Flow data off Darin Morgan's SF600 at Pro-Filer!

220 CC Intake Runner (2.54 min CSA)

2.08 intake valve

.200 155cfm
.300 225cfm
.400 272cfm
.500 304cfm
.600 317cfm
.700 321cfm
.800 326cfm
.900 330cfm
1.00 331cfm

245 CC Intake Runner

2.125 intake valve (3.00 min CSA)

.200 161cfm
.300 231cfm
.400 281cfm
.500 311cfm
.600 329cfm
.700 339cfm
.800 345cfm
.900 349cfm
1.00 350cfm


Complete velocity profile:
http://www.speierracingheads.com/profile.htm
Port velocity:
321 fps over turn
331 fps dead center choke

All heads come with TY Retainers!!

We are offering a PAC Spring/TY Retainer as an upgrade.  The standard spring package features COATED TITANIUM RETAINERS and .700 lift springs with polished outer.

*Rockers requires special bolts for the stands to clear, $40 ARP kit.  You can also mill stand or existing bolts.

If you have any questions please feel free to give us a call.

sSpeier Racing Heads
Chad Speier
785-623-0963

speierracingheads@gmail.com

Dr J's Performacne
Bryce Mulvey
714-943-3404

sales@dr-js.com

cspeier