BRODIX - 12 Series Cylinder Heads/15 1158002-1158005

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

In the mid 1980’s, BRODIX was the first company to offer a “rolled over” valve angle cylinder

head. Since then, the -12 cylinder head has won thousands of late model and sprint car races

and is still winning races today. BRODIX has taken this design even further by adding raised

intake ports, several valve spacings, and more efficient combustion chambers. The -12 cylinder

head is available in several port sizes to fulfill our customers’ needs.

Package Heads:

• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO FP 1263 (WP 12 SP RI, WP 12 SP RI MC) MATCH INTAKE PORT TO FP

1209 (KC 12 SP B, STS 12 SP W B MC) • PS Valve Job: COMPETITION VALVE JOB • Intake Valves: 2.150 X 5.440 o.a.l. - BR 60415 (40/60)

2.200 X 5.440 o.a.l. (70/125) • Exhaust Valves: 1.600 X 5.440 o.a.l. - BR 60044 • Valve Springs: 1.550 ROLLER VALVE SPRING - GA 1000, 240 lb

CLOSED, 550 lb OPEN, 1.950 INSTALLED HEIGHT, .700 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: FEL-PRO 1263, ASK FOR COMETIC PART NUMBER (WP 12 SP RI, WP 12 SP RI MC) FEL-PRO 1209 (KC 12 SP B, STS 12 SP W B MC) • 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 C5424

• Head Studs: ARP 234-4723 (12 pt WITH 3/8 CENTER STUDS) • 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: 15° • Angle Milling: .0065 in PER cc • Flat Milling: .0055 in PER cc • Angle Machining: NOT AVAILABLE

• Pushrod Slots: 40/60, 58/107, 70/125 • Stud Girdle: NOT AVAILABLE • Rocker Arms: SHAFT SYSTEM WITH 40/60, 58/107 OR 70/125

SPACING, CHECK HEADS FOR NTAKE OFFSET 40/60 - TD 2206, JESEL KPS 01204 58/107 - TD 2207

70/125 - TD 22071 • Lifters: .180 OFFSET • Pistons: SPECIAL 15° • Pushrods: SPECIAL LENGTH

• Intake Face Angle: BRODIX 10° STANDARD

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

WP 12 SP RI              247/262 cc                      60 cc                              2.150/1.600                                                       Spread Port                                  40/60                                   MS 89

WP 12 SP RI MC       262 cc                            61 cc                               2.170/1.600                                                       Spread Port                                 58/107                                    N/A

KC 12 SP B                 287 cc                            61 cc                               2.150/1.600                                                       Spread Port                                  40/60                            HV 1200 / HV 1201

STS 12 SP W B MC   305 cc                            69 cc                               2.200/1.600                                                       Spread Port                                 70/125                          HV 1200 / HV 1201

C ylinder head recommendations:

                               CUBIC INCH          COMPRESSION        CAMSHAFT                 RPM                     APPLICATION

WP 12 SP RI            358 - 410             13.5 Minimum                Roller                    4000-7500           Oval Track / Drag Race With Nitrous

WP 12 SP RI MC       358 - 410              13.5 Minimum               Roller                     4000-7500           Oval Track / Drag Race With Nitrous

KC 12 SP B                406 - 430              13.5 Minimum               Roller                     4000-7500           Oval Track / Drag Race With Nitrous

STS 12 SP W B MC    421 - 440            13.5 Minimum              Roller                    4000-7500   Oval Track / Drag Race With Nitrous

Flow Chart CFM @ 28" H20

                                          VALVE SIZE                      0.200       0.300       0.400        0.500         0.600       0.700      0.800

WP 12 SP RI -247           2.150 INTAKE                   152          230          284          316          326          330

(CNC Ported)                  1.600 EXHAUST                120           170          216          233          240          248

WP 12 SP RI - 262          2.150 INTAKE                   150           228          282           322         330          335

(CNC Ported)                  1.600 EXHAUST                120           170          216          233          240         248

WP 12 SP RI MC - 262  2.170 INTAKE                   155           224          282          329          335          347

(CNC Ported)                 1.600 EXHAUST                 117           177          218          231          240          247

KC 12 SP B                    2.150 INTAKE                    155           230          284          320          343          354

(CNC Ported)                1.600 EXHAUST                  120           168          216          232          240          247

STS 12 SP W B MC      2.200 INTAKE                     159           233          290          334          361          372

(CNC Ported)                1.600 EXHAUST                  106           145          190          221          235          247

BASIC EASY ORDER NUMBER:

• WP 12 SP RI 247 Bare Spread Port Exhaust 1158005 MAKE OFFER PER 2

• WP 12 SP RI 262 Bare Spread Port Exhaust 1158002 MAKE OFFER PER 2

• No one sells BRODIX for less.
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