CALL SHANON AT 507 445 3235 FOR ANY QUESTIONS.
The BB-2 X head works well with a light car or large engine (509-555 cu in). It has a 340 cc intake
port and flows over 360 cfm with only the bowls blended and the intake ports matched to the
gasket. The BB-2 X may be purchased angle milled to 110 cc or angle machined to 98 cc. The
BB-2 XTRA head works well on a 540 cu in or larger engine. It has a 365 cc intake port and flows
over 375 cfm with only the bowls blended and the intake ports matched to the gasket. The
BB-3 works well on a 540-605 cu in engine. It has a 370 cc intake port and flows over 370
cfm, but may not be angle machined. While creating the BB-2 XTRA CNC, the professionals at
BRODIX invested many long hours on the flow bench and at the track developing a completely
ported cylinder head. BRODIX incorporated this porting design into a 100% CNC ported
masterpiece that can be mass produced. One of the most accurate, best flowing out-of-the-box
cylinder heads is now available. Each of the castings flows within 1% of each other and is CNC
ported to a mirror finish. The bottom line is that our customers can now buy the best casting
with the best CNC porting at the best price. These cylinder heads accept all standard pistons,
intake manifolds, and rocker arms. The exhaust ports are raised .600 higher than stock. Valve
cover rails are now raised to assure no oil leakage.
Package Heads:
• PS CB: VALVE BOWLS BLENDED • PS MI: MATCH INTAKE PORT TO BRODIX MG 2001 (BB-2 X, BB-2 XTRA, AND BB-3) MATCH INTAKE PORT TO CO C5436 (BP BB-2 XTRA) • PS Valve Job: COMPETITION VALVE JOB • Intake Valves: 2.300 X 5.468 o.a.l. - BR 81241 (STANDARD PACKAGE) 2.300 X 5.568 o.a.l. - BR 81341 (SPRING UPGRADE) • Exhaust Valves: 1.880 X 5.394 o.a.l. - BR 81038 (STANDARD PACKAGE) 1.880 X 5.494 o.a.l. - BR 81138 (SPRING UPGRADE) • Valve Springs: 1.550 ROLLER VALVE SPRING - GA 1000, 240 lb CLOSED, 550 lb OPEN, 1.950 INSTALLED HEIGHT, .700 MAXIMUM LIFT (STANDARD PACKAGE) 1.625 ROLLER VALVE SPRING - MA 221424, 260 lb CLOSED, 790 lb OPEN, 2.100 INSTALLED HEIGHT, .800 MAXIMUM LIFT (SPRING UPGRADE) • Retainers: 1.550 10° STEEL - CC 752 1.625 10° TITANIUM - MA 23640 • Valve Locks: 10° JUMBO - CC 611 • Rocker Studs: 7/16 - BR 716L, AR RRS-4I • Guide Plates: 3/8 - CC 4806 (BB-2 X, BB-2 XTRA, AND BP BB-2 XTRA) 3/8 - BR BB GP-3 (BB-3) - AVAILABLE EXCLUSIVELY FROM BRODIX • Valve Seals: 11/32 - US VS529V
Facts And Related Components:
• Torque Heads: 70 ft-lb • Torque Rocker Studs: 40-45 ft-lb • Intake Gaskets: BRODIX MG 2001, COMETIC C5428, FEL-PRO 1252-3 (BB-2 X, BB-2 XTRA, AND BB-3) • Head Gaskets: 4.310 - FEL-PRO 1027, COMETIC C5432 4.540 - FEL-PRO 1017, COMETIC C5433 4.600 - FEL-PRO 1057, COMETIC C5434 • Exhaust Gaskets: FEL-PRO 1411, COMETIC C5429 • Head Bolts: ARP 135-3606, MANLEY 42192 • Head Studs: ARP 235-4702 (12 pt) • Accessory Bolt Holes Are Drilled • Spark Plug Starting Points: NGK R5671A-9 FOR ALCOHOL NGK R5671A-8 FOR RACING GAS • Spring Pockets: MAY NOT BE CUT ANY LARGER OR DEEPER THAN 1.625 • Valve Angle: 26° AND 4° INTAKE, 17° AND 4° EXHAUST • Angle Milling: .0066 in PER cc • Flat Milling: .0050 in PER cc • Angle Machining: NOT AVAILABLE ON CNC PORTED HEADS • Dowel Shift: NOT AVAILABLE • Pushrod Slots: STANDARD • Stud Girdle: STANDARD, BRODIX 1230 • Rocker Arms: STANDARD • Lifters: STANDARD • Pistons: STANDARD (BB-2 X, BB-2 XTRA, AND BP BB-2 XTRA) CHECK PISTON VALVE NOTCHES (BB-3) • Pushrods: CHECK PUSHROD CLEARANCE WITH HEAD INSTALLED ON THE ENGINE BLOCK BEFORE FINAL ASSEMBLY
Cylinder Head Specifications:
INTAKE CHAMBER VALVE SIZES EXHAUST VALVE INTAKE
PORT VOLUME INTAKE/EXHAUST PATTERN CENTERLINE MANIFOLD
BB-2 X 340cc 119 cc 2.300/1.880 Standard Standard HV 2000 / HV 2001
BB-2 XTRA 365cc 119cc 2.300/1.880 Standard Standard HV 2000 / HV 2001
BP BB-2 XTRA 355cc 119cc 2.300/1.880 Standard Standard HV 2000 / HV 2001
BB-3 370cc 119cc 2.300/1.880 Standard Exhaust Valve Moved .030 HV 2000 / HV 2001
Cylinder Head Recommendations:CUBIC INCH COMPRESSION CAMSHAFT RPM APPLICATION
BB-2 X 509 - 555 13.1 Minimum Roller 4000 - 7500 Pro Street / Drag Race
BB-2 XTRA 540 - 582 13.1 Minimum Roller 4000 - 7500 Pro Street / Drag Race
BP BB-2 XTRA 540 - 582 13.1 Minimum Roller 4000 - 7500 Pro Street / Drag Race
BB-3 555 - 632 14.0 Minimum Roller 4500 - 7500 Pro Street / Drag Race
Flow Chart CFM @ 28" H20VALVE SIZE 0.200 0.300 0.400 0.500 0.600 0.700 0.800
BB-2 X 2.300 INTAKE 153 221 276 322 357 363
1.880 EXHAUST 122 138 171 198 216 229
BB-2 X (CNC 2.300 INTAKE 153 225 285 333 368 365 365
Combustion Chambers) 1.880 EXHAUST 132 176 211 235 254 264 270
BB-2 XTRA 2.300 INTAKE 160 220 277 325 360 379
1.880 EXHAUST 132 159 193 219 234 250
BP BB-2 XTRA 2.300 INTAKE 183 235 294 340 376 395 408
(CNC Ported) 1.880 EXHAUST 134 177 216 247 268 280 288
BB-3 2.300 INTAKE 145 206 265 316 351 371
1.880 EXHAUST 93 129 161 187 213 229
BASIC EASY ORDER NUMBER:
• BP BB-2 XTRA BARE PKG 119 Chamber 355 port vol. (1.625 spring diam) 2028101 MAKE OFFER PER 1
• BP BB-2 XTRA BARE PKG 115 Chamber 355 port vol. (1.625 spring diam) 2028104 MAKE OFFER PER 1
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