The BRODIX BD series is the latest in cylinder head technology. This symmetrical
port design virtually eliminates head gasket problems that have plagued the small
block Chevy for decades. The BD heads are available CNC ported in several port
volumes. Special components needed for proper installation include: injector or
intake manifold, headers, shaft rocker system, sheet metal valve covers, head stud
kit, and camshaft core.
Package Heads:
• PS CB: VALVE BOWLS BLENDED• PS MI: MATCH INTAKE PORT TO COMETIC C5421• PS Valve Job: COMPETITION VALVE JOB• Intake Valves: 2.200 X 6.090 o.a.l. - BX 2200-609T (BD 2000) 2.200 X 6.250 o.a.l. - BX 2200-625T (BD 1010) 2.230 X 6.250 o.a.l. - BX 2230-625T (BD 2300)• Exhaust Valves: 1.580 X 6.090 o.a.l. - BR 91580 (BD 2000) 1.580 X 6.250 o.a.l. - BX 1580-625T 25 (BD 1010) 1.600 X 6.250 o.a.l. (BD 2300)• 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: COMETIC C5421• Head Gaskets: 350 - COMETIC C5404 400 - COMETIC C5408• Exhaust Gaskets: COMETIC C5420• Head Studs: AVAILABLE EXCLUSIVELY FROM BRODIX - BRODIX BR HS/BD CI BLOCK (CAST IRON BLOCK) BRODIX SKHS BD (ALUMINUM BLOCK)• 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: 13.5° (BD 2000, BD 2300) 12° (BD 1010)• Angle Milling: .0065 in PER cc• Flat Milling: .0055 in PER cc• Angle Machining: NOT AVAILABLE• Pushrod Slots: LEFT BARE AND UNCUT• Stud Girdle: NOT AVAILABLE• Rocker Arms: SHAFT SYSTEM WITH 85/125 OR 58/125 SPACING, CHECK HEADS FOR INTAKE OFFSET - T&D 2223 (BD 2000), T&D 22201 (BD 1010), JESEL KPS 20693• Lifters: .180 OFFSET RIGHT (8) AND .180 OFFSET LEFT (8)• Pistons: BD 2000 - 13.5° WITH -12 SPARK PLUG ANGLE (#1 CYLINDER) BD 2300 - CUSTOM BD 1010 - SPECIAL 12° (#1 CYLINDER)• Pushrods: SPECIAL LENGTH• Intake Face Angle: BRODIX 5°• Valve Covers: SHEET METAL• Manifold: VALLEY TRAY REQUIRED - AVAILABLE EXCLUSIVELY FROM BRODIX.
Cylinder Head Specifications:
INTAKE CHAMBER VALVE SIZES EXHAUST VALVE INTAKE
PORT VOLUME INT./EXH. PATTERN CENTERLINE MANIFOLD
WP BD 2000 285 cc 74 cc 2.200/1.580 Symmetrical 85/125 BM 100 / BM 102
WP BD 2300 311 cc 49 cc 2.230/1.600 Symmetrical 95/150 BM 100 / BM 102
WP BD 1010 299 cc 64 cc 2.200/1.580 Symmetrical 58/125 BM 100 / BM 102
CUBIC INCH COMPRESSION CAMSHAFT RPM APPLICATION
WP BD 2000 380 - 440 13.5 Minimum Roller 4500 - 8500 Oval Track / Drag Race / Pro Street
WP BD 2300 415 - 460 13.5 Minimum Roller 4500 - 8500 Oval Track / Drag Race / Pro Street
WP BD 1010 415 - 460 13.5 Minimum Roller 4500 - 8500 Oval Track / Drag Race / Pro Street
Flow Chart CFM @ 28" H20
VALVE SIZE 0.200 0.300 0.400 0.500 0.600 0.650 0.700 0.800
WP BD 2000 2.200 INTAKE 157 238 302 353 381 389 399
(CNC Ported) 1.580 EXHAUST 109 152 205 232 241 247 250
WP BD 2300 2.230 INTAKE 150 223 275 331 382 401 410 417
(CNC Ported) 1.600 EXHAUST 113 164 219 246 256 262 265 267
WP BD 1010 2.200 INTAKE 152 229 292 343 375 383 388
(CNC Ported) 1.580 EXHAUST 117 162 220 245 255 257 260
• BD 2000 Bare Symmetrical Exhaust 1200000 MAKE OFFER PER 1
• BD 1010 Bare Symmetrical Exhaust 1200001 MAKE OFFER PER 1
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Warning: May cause cancer and reproductive harm.
