BRODIX SBF ST 5.0 SERIES CYLINDER HEADS/20 1051002-1051003

Regular price $ 2,014.99

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 Pkg 1051002 Int Vol 171 55 Cha 1.94/1.6 1.47 ST Ret MAKE OFFER PER 2

ST 5.0 Pkg 1051003 Int Vol 171 55 Cha 2.02/1.6 1.47 ST Ret MAKE OFFER PER 2

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