BRODIX - Series Cylinder Heads/18 1180003-1180005

Regular price $ 1,914.01

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

The BRODIX 18 C cylinder head has an 18° valve angle that works well on dirt late model or
serious drag racing applications. This head has special valve centerlines and dowel location
requiring special components. Interlocking valve seats are installed along with replaceable
phosphorous bronze guides. The combustion chambers may be angle machined down to the
mid 40 cc range without weakening the deck surface. The 18 C has two exhaust bolt patterns
available and a 5° intake face requiring a special intake manifold and components

Package Heads:

• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO FP 1282 • PS Valve Job: COMPETITION VALVE JOB

• Intake Valves: 2.180 X 5.540 o.a.l. - BR 60518D • Exhaust Valves: 1.625 X 5.540 o.a.l. - BR 60154 • 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: MODIFIED FEL-PRO 1282• 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 234-4727 (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: 18° • Angle Milling: .0065 in PER cc • Flat Milling: .0055 in PER cc • Angle Machining: NOT AVAILABLE • Pushrod Slots: 58/107 • Stud Girdle: NOT AVAILABLE• Rocker Arms: SHAFT SYSTEM WITH 58/107 SPACING, CHECK HEADS FOR INTAKE OFFSET - T&D 2229, JESEL KPS 15409 • Lifters: .180 OFFSET • Pistons: SPECIAL 18°• Pushrods: SPECIAL LENGTH • Intake Face Angle: 5° A-356 Virgin Aluminum; Easily Repaired 5° Intake Flange AvailableCNC Ported 18° Standard or Spread Port Exhaust 58/107 Valve Spacing Flows Over 390 cfm CNC Ported 

Cylinder Head Specifications:

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

18 SP C       185 cc 40 cc 2.180/1.625    Angle Spread Port 58/107    HV 1813 / HV 1814

18 SP C    185 cc 40 cc 2.180/1.625 Angle Spread Port       58/107         HV 1813 / HV 1814
18 STD C  185 cc 40 cc 2.180/1.625 Angle  18° Standard    58/107          HV 1813 / HV 1814
WP 18 SP C*   254 cc 56 cc 2.180/1.625  Angle Spread Port      58/107         HV 1813 / HV 1814
KC 18 SP C       254 cc        56 cc 2.180/1.625  Angle Spread Port      58/107         HV 1813 / HV 1814
WP 18 SP C AP 266 cc       57 cc   2.180/1.625  
Angle Spread Port      58/107         HV 1813 / HV 1814

Cylinder Head Recommendations:

                                   CUBIC INCH          COMPRESSION        CAMSHAFT               RPM                                   APPLICATION

WP 18 SP C*       358 - 430       13.5 Minimum        Roller       4000 - 7500           Oval Track / Drag Race
KC 18 SP C         358 - 430       13.5 Minimum        Roller       4000 - 7500           Oval Track / Drag Race
WP 18 SP C AP  358 - 430       13.5 Minimum        Roller        4000 - 7500          Oval Track / Drag Race

* The 18 SP C is 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

WP 18 SP C         2.180 INTAKE                                     157           230           280          329         360          367
HUT 921.4 A        1.625 EXHAUST                                 112           167           209          227         238          245
(CNC Ported)
KC 18 SP C          2.180 INTAKE                                    163           232           288          335         351          360
(CNC Ported)       1.625 EXHAUST                                 119           172           214          233         242          250
WP 18 SP C AP    2.180 INTAKE                                    154           224           278          328         369          395
(CNC Ported)       1.625 EXHAUST                                 134           175           241          261         270          274

BASIC EASY ORDER NUMBER:

• 18 SP C Bare Spread Port Exhaust 1180003 MAKE OFFER PER 2

• 18 STD C Bare Standard Exhaust  1180005 MAKE OFFER PER 2

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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