CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

sprint cars, late models, and drag racing in mind. The GB 2000 series features improved spark

plug angles, highly efficient combustion chambers, raised intake ports, moved valve centerlines,

and a raised valve cover rail. The latest evolution of the GB head is the DR 1213 which features

a 13.5° exhaust valve angle and a 12.5° intake valve angle for even greater air flow. Special

components required for the GB 2000 series and DR heads are injectors or modified intake

manifold, sheet metal valve covers, and a shaft rocker system. Call one of our technicians to

Package Heads:

• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO BRODIX MG 2200 • PS Valve Job: COMPETITION VALVE JOB

• Intake Valves: 2.230 X 6.250 o.a.l. - BX 2230-625T, 52° (WP DR 1213) 2.200 X 6.090 o.a.l. - BX 2200-609T (GB 2000, GB 2200)

2.200 X 6.250 o.a.l. - BX 2200-625T (GB 2300) 2.200 X 6.350 o.a.l. - BX 2200-635T (GB 2400) • Exhaust Valves: 1.580 X 6.090 o.a.l. - BR 91580 (GB 2000, GB 2200) 1.580 X 6.250 o.a.l. - BR 91582, BX 1580-625 T 25, 45° (WP DR 1213, GB 2300) 1.580 X 6.350 o.a.l. - BR 91535D, BX 1580-635 T 25

(GB 2400) • Valve Springs: 1.550 ROLLER VALVE SPRING - GA 1000, 240 lb CLOSED, 550 lb OPEN, 1.950 INSTALLED

HEIGHT, .700 MAXIMUM LIFT 1.550 ROLLER VALVE SPRING - IS 9985, 260 lb CLOSED, 600 lb OPEN, 1.950 INSTALLED

HEIGHT, .800 MAXIMUM LIFT • Retainers: 1.550 10° TITANIUM - MA 2398BR • Valve Locks: 10° JUMBO - CC 611

• Rocker Studs: SHAFT SYSTEM REQUIRED • Valve Seals: 11/32 - US VS529V

Facts And Related Components:

• Torque Heads: 70 ft-lb • Torque Rocker Studs: 40-45 ft-lb • Intake Gaskets: BRODIX MG 2200, COMETIC C5423 • Head Gaskets: 350 - FEL-PRO 1003, COMETIC C5399

400 - FEL-PRO 1004, COMETIC C5403 • Exhaust Gaskets: SPREAD PORT - BRODIX MG 52464 (TRIM TO FIT), COMETIC C5422 • Head Studs: AVAILABLE EXCLUSIVELY FROM BRODIX - BRODIX BR HSRP/GB CI BLOCK (GB 2000) BRODIX BR HSGB 2200 CI BLK (GB 2200) • Accessory Bolt Holes Are Drilled

• Spark Plug Starting Points: NGK R5671A-10 FOR ALCOHOL NGK R5671A-9 FOR RACING GAS • Spring Pockets: 1.550 OUT OF THE BOX, MAY BE CUT TO 1.625 -

NO LARGER OR DEEPER • Valve Angle: 13.5° • Angle Milling: NOT AVAILABLE • Flat Milling: .0060 in PER cc • Angle Machining: NOT AVAILABLE

• Pushrod Slots: LEFT BARE AND UNCUT • Stud Girdle: NOT AVAILABLE • Rocker Arms: SHAFT SYSTEM WITH 85/125 SPACING - T&D 2221,

JESEL KPS 20592 (GB SERIES), 95/150 SPACING - T&D 22221, JESEL KPS 411164 (WP DR 1213), CHECK HEADS FOR INTAKE OFFSET

• Lifters: .180 OFFSET • Pistons: SPECIAL 13.5° WITH -12 SPARK PLUG ANGLE • Pushrods: SPECIAL LENGTH • Intake Face Angle: BRODIX 5°

• Valve Covers: SHEET METAL

Cylinder Head Specifications:

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

WP DR 1213           315 cc          49 cc                             2.230/1.580                                   Spread Port                  95/150                        Fuel Injection

WP GB 2000*         286 cc          76 cc                             2.200/1.580                                   Spread Port                  85/125              GM # 24502653 / Edelbrock # 2955

                                                                                                                                            With BRODIX Spacers and Valley Plate

WP GB 2200           282 cc          69 cc                             2.200/1.580                                   Spread Port                  85/125              GM # 24502653 / Edelbrock # 2955

                                                                                                                                            With BRODIX Spacers and Valley Plate

WP GB 2200+30      291 cc         69 cc                             2.200/1.580                                   Spread Port                  85/125               GM # 24502653 / Edelbrock # 2955

                                                                                                                                            With BRODIX Spacers and Valley Plate

WP GB 2300            309 cc         49 cc                             2.200/1.580                                    Spread Port                 75/125                 Fuel Injection

WP GB 2400            325 cc         53 cc                             2.200/1.580                                    Spread Port                 75/150                 Fuel Injection

C ylinder Head recommendations:

                               CUBIC INCH           COMPRESSION        CAMSHAFT                 RPM                     APPLICATION

WP DR 1213         380 - 440          13.5 Minimum        Roller              4500 - 8500        Oval Track / Drag Race

WP GB 2000*       380 - 410          13.5 Minimum        Roller              4500 - 8500         Oval Track / Drag Race

WP GB 2200         380 - 421          13.5 Minimum        Roller              4500 - 8500         Oval Track / Drag Race

WP GB 2200+30   380 - 421          13.5 Minimum        Roller              4500 - 8500         Oval Track / Drag Race

WP GB 2300         380 - 440          13.5 Minimum        Roller              4500 - 8500         Oval Track / Drag Race

WP GB 2400         380 - 454          13.5 Minimum        Roller               4500 - 8500        Oval Track / Drag Race

*WP GB 2000 are available in several intake port sizes. Ask a BRODIX representative which size would best fit your application.

Flow Chart CFM @ 28" H20

                                          VALVE SIZE                     0.200        0.300         0.400        0.500         0.600        0.700          0.800

WP DR 1213                2.230 INTAKE        141         221        295         351         396         421         435

(CNC Ported)              1.580 EXHAUST     105         159         210        237         252          262         268

WP GB 2000 - 286       2.200 INTAKE        157         238         302         353         381         399

(CNC Ported)              1.580 EXHAUST     109         152         205         232         241         250

WP GB 2200 - 282       2.200 INTAKE        150         223         286         336         368         383

(CNC Ported)              1.580 EXHAUST     104         158         210         235         246         252

WP GB 2200 - 282+30 2.200 INTAKE        150         224         289         337         371         396

(CNC Ported)              1.580 EXHAUST     104         158         210         235         246         252

WP GB 2300 - 309       2.200 INTAKE        153          231        286         342         374         394

(CNC Ported)              1.580 EXHAUST     100         151         216         243         250         253

WP GB 2400 - 325      2.200 INTAKE CALL FOR FLOW NUMBERS

(CNC Ported)             1.580 EXHAUST

• WP GB 2000 L Pkg Spread Port Exhaust 1138100 MAKE OFFER PER 1

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