BRODIX BARE BIG BLOCK CHEVY PB 1203 CYLINDER HEADS/12 2120000

Regular price $ 4,928.78

CALL SHANON AT 507 445 3235 FOR ANY QUESTIONS.

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:

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

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

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

Flow Chart CFM @ 28" H20

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

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

BASIC EASY ORDER NUMBER:

• PB 1203 Bare 475 cc Intake Runner 2120000 MAKE OFFER PER 1

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