BRODIX COMPETE BIG BLOCK CHEVY PB 1203 CYLINDER HEADS/12 2121000

The Man Eater PB 1200 series takes the big block world to the next plateau! This head comes

equipped with several features that include: 12° valve angle; raised, oval-shaped intake ports

designed to achieve a delicate balance between horsepower and torque; and precision contoured

shallow chambers with outstanding wet flow characteristics. The New PB 1203 is the latest in

as-cast technology. It is the most powerful out-of-the-box head in its class. The PB 1202 takes

the Man Eater PB 1200 series a step further. This head features 497 cc oval-shaped intake

ports that are raised an additional .125 and utilizes a 2.520 intake valve. The Man Eater PB 1200

series is available 100% CNC ported to ensure accuracy. The standard features are A-356 virgin

aluminum alloy, phosphorous bronze valve guides, and copper valve seats. These heads are

machined to accept 1.740 valve spring cups and can be used in conjunction with the BRODIX PM

series of manifolds.

Package Heads:

• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO BRODIX MG 2015 (BP PB 1200, BP PB 1201, PB 1203) MATCH INTAKE PORT TO BRODIX MG 1202 (BP PB 1202) • PS Valve Job: COMPETITION VALVE JOB • Intake Valves: 2.520 X 6.920 o.a.l. - 55° SEAT ANGLE (BP PB 1200, PB 1203) 2.450 X 6.920 o.a.l. - 55° SEAT ANGLE (BP PB 1201) 2.480 X 6.920 o.a.l. - 55° SEAT ANGLE (BP PB 1202) • Exhaust Valves: 1.860 X 6.620 o.a.l. - 55° SEAT ANGLE • Valve Springs: 1.645 ROLLER VALVE SPRING - CC 948, 315 lb CLOSED, 915 lb OPEN, 2.100 INSTALLED HEIGHT, .850 MAXIMUM LIFT • Retainers: 1.645 10° TITANIUM - MA 2001 • Valve Locks: 10° JUMBO - CC 611 • Rocker Studs: SHAFT SYSTEM REQUIRED • Valve Seals: 11/32 - US VS485V

FACTS AND RELATED COMPONENTS:

• Torque Heads: 70 ft-lb • Torque Rocker Studs: 40-45 ft-lb • Intake Gaskets: BRODIX MG 2015 (BP PB 1200, BP PB 1201, PB 1203) BRODIX MG 1202 (BP PB 1202) • Head Gaskets: 4.540 - FEL-PRO 1017, COMETIC C5433 4.600 - FEL-PRO 1057, COMETIC C5434 • Exhaust Gaskets: BRODIX MG 2005 • Valve Cover Gaskets: BRODIX MG 2016 • Head Studs: AVAILABLE EXCLUSIVELY FROM BRODIX - BRODIX BR HS/PB 2005 CI BLK (12 pt) FOR CAST IRON BLOCK BRODIX SK HS PB 2005 (12 pt) FOR ALUMINUM BLOCK • Accessory Bolt Holes Are Drilled • Spark Plug Starting Points: NGK R5671A-10 FOR ALCOHOL NGK R5671A-9 FOR RACING GAS • Spring Pockets: MAY NOT BE CUT ANY LARGER OR DEEPER THAN 1.750 • Valve Angle: 12° AND 4° INTAKE, 6° AND 4° EXHAUST • Angle Milling: NOT AVAILABLE • Flat Milling: .0055 in PER cc • Angle Machining: NOT AVAILABLE • Dowel Shift: NOT AVAILABLE • Pushrod Slots: STANDARD • Rocker Arms: SHAFT SYSTEM - T&D 3070, JESEL KPS 390156 • Lifters: STANDARD • Pistons: 12° X 6° VALVE ANGLE • Pushrods: CHECK PUSHROD CLEARANCE WITH HEAD INSTALLED ON THE ENGINE BLOCK BEFORE FINAL ASSEMBLY

Cylinder Head Specifications:

  INTAKE PORT CHAMBER VOLUME VALVE SIZES INTAKE/EXHAUST EXHAUST PATTERN INTAKE MANIFOLD

BP PB 1200      483 cc             72 cc / 68 cc *             2.520/1.860              Standard             PM 1807 / PM 1817 / PM 1907 / PM 1917

BP PB 1201      480 cc             72 cc / 68 cc *             2.450/1.860              Standard             PM 1807 / PM 1817 / PM 1907 / PM 1917

BP PB 1202      497 cc             72 cc / 68 cc *             2.480/1.860              Standard              PM 1807 / PM 1817/ PM 1907 / PM 1917

PB 1203            475 cc             72 cc / 68 cc *             2.520/1.860              Standard              PM 1807 / PM 1817/ PM 1907 / PM 1917

                       CUBIC INCH         COMPRESSION         CAMSHAFT                RPM                    APPLICATION

BP PB 1200   598 - 706                       14.0 Minimum                          Roller                       4500 - 8000                       Drag / Truck Puller

BP PB 1201   565 - 632                       14.0 Minimum                          Roller                       4500 - 8000                       Drag / Truck Puller

BP PB 1202   598 - 706                       14.0 Minimum                          Roller                       4500 - 8000                       Drag / Truck Puller

PB 1203         598 - 706                       14.0 Minimum                          Roller                       4500 - 8000                       Drag / Truck Puller

                           VALVE SIZE          0.200             0.300             0.400           0.500            0.600           0.700            0.800           0.900

BP PB 1200     2.520 INTAKE         151                235                323              395               459              513               549               563

(CNC Ported)  1.860 EXHAUST      126                180                224              264               305              319               333               338

BP PB 1201     2.450 INTAKE         151                243                330              400               454              495               521               533

(CNC Ported)  1.860 EXHAUST      122                176                231              276              300               303               339               340

BP PB 1202     2.480 INTAKE         154                247                332              401              468                509               535              553

(CNC Ported) 1.860 EXHAUST      122                 174                229              274              303                328               338              339

PB 1203          2.520 INTAKE         150                 230                309              377               442               495               530              536

                        1.860 EXHAUST   119                169                217              251              280              306              316              323

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• PB 1203 Pkg 475 cc Intake Runner 2121000 MAKE OFFER PER 1

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