CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

The BRODIX ST 5.0 cylinder head was developed to fit the Ford Windsor engine. Out of the
box, completely assembled ST 5.0 heads produce a 50 horsepower increase over other stock
heads, and the combustion chambers may be milled into the mid 50 cc range. All existing stock
5.0 accessories can be used in the installation of the BRODIX ST 5.0. A modified version, the
BRODIX ST 5.0 R, allows the use of 7/16 Ford roller rockers. The exhaust ports are raised .500
higher than stock Windsor heads on both versions. The KC CNC ported ST 5.0 R outflows all
other heads in its class.

Package Heads:

• PS CB: VALVE BOWLS BLENDED• PS MI: MATCH INTAKE PORT TO FP 1250• PS Valve Job: COMPETITION VALVE JOB
• Intake Valves: 1.940 X 4.920 o.a.l. - BR 60194D 2.020 X 4.920 o.a.l. - BR 6170DI• Exhaust Valves: 1.600 X 4.940 o.a.l. - BR 6169DI
• Valve Springs: 1.470 HYDRAULIC ROLLER VALVE SPRING -
CC 987, 125 lb CLOSED, 325 lb OPEN, 1.900 INSTALLED HEIGHT, .575 MAXIMUM LIFT• Retainers: 1.430 7° STEEL - CC 743
• Valve Locks: 7°- PI PF-555• Rocker Studs: 7/16 - BR 716L, AR RRS-4I (ST 5.0 R)• Guide Plates: 5/16 - BR 289351 (ST 5.0 R)
• Valve Seals: 11/32 - US VS529V

Facts And Related Components:

• Torque Heads: 100 ft-lb WITH 1/2” STUDS 70 ft-lb WITH 7/16” STUDS• Torque Rocker Stands: 30 ft-lb (ST 5.0)
• Torque Rocker Studs: 40-45 ft-lb (ST 5.0 R, KC ST 5.0 R)• Intake Gaskets: FEL-PRO 1250
• Head Gaskets: FEL-PRO 1011-1 OR FEL-PRO 1011-2• Head Studs: ARP 154-4005 FOR 289-302 ARP 154-4203 FOR 351
• Head Bolts: ARP 154-3605 FOR 289-302 ARP 154-3603 FOR 351• Exhaust Gaskets: FEL-PRO 1487, BRODIX MG 1350
• Accessory Bolt Holes Are Drilled• Spark Plug Starting Points: CHAMPION C63CX OR AUTOLITE 3922
• Spring Pockets: MAY NOT BE CUT ANY LARGER OR DEEPER THAN 1.550• Valve Angle: 20°
• Angle Milling: NOT AVAILABLE• Flat Milling: .0060 in PER cc• Pushrods: STOCK LENGTH 6.250; MAY REQUIRE SPECIAL
LENGTH IF HEADS ARE MILLED• Rocker Arms: FORD STOCK 5.0 STANDARD NON-ADJUSTABLE
ROCKERS (MOTORSPORTS PART # M6564-B351)FOR ST 5.0 ANY FORD ROLLER ROCKERS WITH 7/16”
ROCKER STUDS FOR ST 5.0 R• Stud Girdle: 53/119 - BR 6430• Air Tube: STOCK AIR TUBE CAN BE USED WITH MINOR MODIFICATIONS.

Cylinder Head Specifications:

                         INTAKE    CHAMBER    VALVE SIZES       PLUG          EXHAUST           VALVE                   INTAKE 

                           PORT       VOLUME           INT./EXH.         ANGLE         PATTERN    CENTERLINE          MANIFOLD

ST 5.0              171 cc           60 cc            1.940/1.600          Angle           Standard            53/119           Small Block Ford
ST 5.0 R          171 cc           60 cc            1.940/1.600          Angle           Standard            53/119           Small Block Ford
KC ST 5.0 R  185 cc            66 cc            2.020/1.600          Angle           Standard            53/119           Small Block Ford

 Cylinder Head Recommendations:

                      CUBIC INCH    COMPRESSION                      CAMSHAFT                              RPM                   APPLICATION

ST 5.0             289 - 347               9.5 - 10.5              Hydraulic / Hydraulic Roller         2000 - 6000          Street / Pro Street
ST 5.0 R         289 - 347               9.5 - 10.5              Hydraulic / Hydraulic Roller         2000 - 6000          Street / Pro Street
KC ST 5.0 R  289 - 408         10.5 Maximum          Hydraulic / Hydraulic Roller         2000 - 6500          Street / Pro Street           

Flow Chart CFM @ 28" H20

                             VALVE SIZE      0.200                   0.300                  0.400                   0.500                   0.600                  0.700  

ST 5.0               1.940 INTAKE       130                       186                      225                      237                      241
                           1.600 EXHAUST  100                       132                      156                      172                      184
ST 5.0 R           1.940 INTAKE       130                       186                      225                      237                      241
                           1.600 EXHAUST  100                       132                      156                      172                      184
KC ST 5.0 R    2.020 INTAKE      145                        208                      245                      272                      277                     281
(CNC Ported) 1.600 EXHAUST  119                        150                      179                      198                      209                     216

Basic easy order numbers:

• ST 5.0 Bare 171 Int. Vol. 60 Chamber 1050000 MAKE OFFER PER 2

• ST 5.0 R Bare 171 Int. Vol. 60 Chamber 1050001 MAKE OFFER PER 2

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