BRODIX PB 1800 and 1801 Cylinder Heads/18 2181000-2181004

Regular price $ 1,817.77

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

The 18° Pro Stock style cylinder heads from BRODIX are the Big Dukes. The PB 1800 and PB

1801 were the original designs in this legendary series. The PB 1802 is a cast ported version

of the PB 1800 capable of flowing over 480 cfm. The professionals at BRODIX have contoured

each intake port, exhaust port, and combustion chamber to flow its maximum potential out of

the box. The revolutionary PB 1803 cylinder heads from BRODIX feature oval intake ports, CNC

combustion chambers, and use all standard components for the 18° Pro Stock head excluding

the manifold. For the KC PB 1803, BRODIX contacted the best head porters in the business to

incorporate our porting design into a 100% CNC ported masterpiece. The PB 1803 utilizes an

as-cast intake port that delivers outstanding out-of-the-box performance. Copper valve seats

and a 55° seat angle make either head an excellent choice when looking for serious torque and

horsepower. All Big Duke series heads require special pistons, valve covers, head studs, shaft

rockers, and intake manifold.

Package Heads:

• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO FP 1298 (PB 1800-1802) MATCH INTAKE PORT TO BRODIX MG 2013 (PB 1803) • PS Valve Job: COMPETITION VALVE JOB • Intake Valves: 2.400 X 6.600 o.a.l. - BR 81660, 45° SEAT ANGLE (PB 1800-1802) 2.450 X 6.650 o.a.l. - BR 81665, 55° SEAT ANGLE (PB 1803) • Exhaust Valves: 1.900 X 6.450 o.a.l. - BR 81645, 45° SEAT ANGLE (PB 1800-1802) 1.860 X 6.550 o.a.l. - BR 81685, 55° SEAT ANGLE (PB 1803) • Valve Springs: 1.625 ROLLER VALVE SPRING - MA 221424, 260 lb CLOSED, 790 lb OPEN, 2.100 INSTALLED HEIGHT, .800 MAXIMUM LIFT 1.645 ROLLER VALVE SPRING - CC 948, 315 lb CLOSED, 915 lb OPEN, 2.100 INSTALLED HEIGHT, .850 MAXIMUM LIFT • Retainers: 1.625 10° TITANIUM - MA 23640 1.645 10° TITANIUM - MA 2001 • Valve Locks: 10° JUMBO - CC 611 • Rocker Studs: SHAFT SYSTEM REQUIRED • Valve Seals: 11/32 - US VS529V (1.625 VALVE SPRING) 11/32 - US VS485V (1.645 VALVE SPRING)

FACTS AND RELATED COMPONENTS:

• Torque Heads: 70 ft-lb • Torque Rocker Studs: 40-45 ft-lb • Intake Gaskets: FEL-PRO 1298, COMETIC C5419 (PB 1800-1802) BRODIX MG 2013 (PB 1803, BP PB 1803) • Head Gaskets: 4.540 - FEL-PRO 1017, COMETIC C5433 4.600 - FEL-PRO 1057, COMETIC C5434 • Exhaust Gaskets: FEL-PRO 1412, COMETIC C5418 • Head Studs: ARP 235-4712 (12 pt) • 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: 18° AND 4° INTAKE, 9° 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 3036, JESEL KPS 22797 • Lifters: STANDARD • Pistons: STANDARD 18° X 9° VALVE ANGLE • Pushrods: CHECK PUSHROD CLEARANCE WITH HEAD INSTALLED ON THE ENGINE BLOCK BEFORE FINAL ASSEMBLY • 4.375 MINIMUM BORE

Cylinder Head Specifications:

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

PB 1801      375 cc                 89 cc                     2.400/1.900               Standard               PM 1800/PM 1810/PM 1903**/PM 1913**

PB 1800     415 cc                  89 cc                     2.400/1.900               Standard               PM 1800/PM 1810/PM 1903**/PM 1913**

PB 1802     456 cc                  91 cc                     2.400/1.900               Standard               PM 1800/PM 1810/PM 1903**/PM 1913**

PB 1803     413 cc                  95 cc                     2.450/1.860               Standard               PM 1803 / PM 1813 / PM 1903 / PM 1913

BP PB 1803 410 cc            95 cc / 91 cc *             2.450/1.860               Standard               PM 1803 / PM 1813 / PM 1903 / PM 1913

*Chamber Volume With Stealth Titanium Valves

** Oval Port Manifold MUST Be Port Matched to Fit Rectangular Port Heads

Cylinder Head Recommendations:

                CUBIC INCH   COMPRESSION    CAMSHAFT         RPM                              APPLICATION

PB 1801     522 - 555                13.5 Minimum                  Roller                4500 - 7500                    Pro Street / Drag Race / Truck Puller

PB 1800       540 - 632                13.5 Minimum                  Roller                4500 - 7500                    Pro Street / Drag Race / Truck Puller

PB 1802       555 - 632                13.5 Minimum                  Roller                4500 - 7500                    Pro Street / Drag Race / Truck Puller

PB 1803       522 - 632                13.5 Minimum                  Roller                4500 - 7500                    Pro Street / Drag Race / Truck Puller

BP PB 1803 522 - 632              13.5 Minimum                 Roller                4500 - 7500                Pro Street / Drag Race / 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

PB 1801 (Hand Ported) 2.400 INTAKE     162               245                312              367              411               442               463

4.500 BORE                     1.900 EXHAUST  129               180                222              269              301               308               315

PB 1800                           2.400 INTAKE     117               184                256              328              391               435               453

4.600 BORE                     1.900 EXHAUST  113               166                211              239              252               259               264

PB 1802                           2.400 INTAKE     135               205                280              351              409               449               480

4.600 BORE                    1.900 EXHAUST   100               151                193              234              265               296               306

PB 1802 (CNC                 2.400 INTAKE     156                230                305              361              414               453               476

Combustion Chambers)  1.900 EXHAUST  135                180                219              252              294               306               313

PB 1803 (CNC                 2.450 INTAKE     137                217                296              362              418               464               484              490

Combustion Chambers)  1.860 EXHAUST  110                162                204              238               265               288              320              328

BP PB 1803                     2.450 INTAKE     145                224                300              369               425               475              500              515

(CNC Ported)                  1.860 EXHAUST  126                172                211              245               270               318              338              351

BASIC EASY ORDER NUMBER:

PB 1800 Pkg 415 cc Intake Runner 2181000 MAKE OFFER PER 1

PB 1801 Pkg 375 cc Intake Runner 2181004 MAKE OFFER PER 1

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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