BRODIX - 12 Series Cylinder Heads/15 1150000-1150004

Regular price $ 2,130.98

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

Cylinder Head Specifications

BASIC EASY ORDER NUMBER:

• 12 SP P Bare Spread Port Exhaust 1150000 MAKE OFFER PER 2

• 12 SP B Bare Spread Port Exhaust 1150004 MAKE OFFER PER 2

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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