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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 flow within 1% of each other and are 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.
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Strongest Castings in The Business!
See a Comparison
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Intake Port
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Chamber Volume
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Valve Sizes Intake/Exhaust
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Exhaust
Pattern
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Valve
Centerline
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Intake Manifold
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BB-2 X
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340 cc
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119 cc
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2.300/1.880
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Standard
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Standard
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HV 2000/
HV 2001
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BB-2 XTRA
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365 cc
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119 cc
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2.300/1.880
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Standard
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Standard
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HV 2000/
HV 2001
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BP BB-2 XTRA
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355 cc
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119 cc
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2.300/1.880
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Standard
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Standard
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HV 2000/
HV 2001
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BB-3
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370 cc
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119 cc
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2.300/1.880
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Standard
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Exhaust Valve
Moved .030
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HV 2000/
HV 2001
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Cubic Inch
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Compression
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Camshaft
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RPM
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Application
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BB-2X
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509 - 555
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13.1 Minimum
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Roller
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4000-7500
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Pro Street/
Drag Race
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BB-2 XTRA
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540 - 582
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13.1 Minimum
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Roller
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4000-7500
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Pro Street/
Drag Race
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BP BB-2 XTRA
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540 - 582
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13.1 Minimum
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Roller
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4000-7500
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Pro Street/
Drag Race
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BB-3
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555 - 632
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14.0 Minimum
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Roller
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4500-7500
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Pro Street/
Drag Race
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Valve Size
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0.200
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0.300
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0.400
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0.500
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0.600
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0.700
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0.800
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BB-2 X
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2.300 Intake
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153
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221
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276
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322
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357
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363
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1.880 Exhaust
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122
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138
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171
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198
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216
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229
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BB-2 X
(CNC Combustion
Chambers)
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2.300 Intake
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153
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225
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285
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333
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368
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365
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365
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1.880 Exhaust
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132
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176
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211
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235
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254
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264
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270
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BB-2 XTRA
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2.300 Intake
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160
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220
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277
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325
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360
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379
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1.880 Exhaust
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132
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159
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193
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219
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234
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250
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BP BB-2 X
TRA
(CNC Ported) |
2.300 Intake
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183
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235
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294
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340
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376
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395
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408
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1.880 Exhaust
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134
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177
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216
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247
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268
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280
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288
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BB-3
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2.300 Intake
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145
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206
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265
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316
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351
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371
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1.880 Exhaust
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93
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129
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161
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187
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213
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229
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• 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 a.o.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-2X, 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
Special Intake Gaskets Are Available Exclusively From BRODIX
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• Torque Heads:
70 ft-lb
• Torque Rocker Studs:
40-45 ft-lb
• Intake Gaskets:
BRODIX MG 2001, COMETIC C5428
FEL-PRO 52465 (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
• 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
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BB-2 X Bare
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119 Chamber
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2020003
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BB-2 X Pkg
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119 Chamber
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2021036
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BB-2 X Pkg (1.625 Spring)
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119 Chamber
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2021038
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BB-2 XTRA Bare
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119 Chamber
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2020002
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BB-2 XTRA Pkg
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119 Chamber
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2021024
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BB-2 XTRA Pkg (1.625 Spring)
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119 Chamber
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2021026
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BP BB-2 XTRA Bare
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119 Chamber
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2028000
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BP BB-2 XTRA Pkg
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119 Chamber
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2028100
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BP BB-2 XTRA Pkg (1.625 Spring)
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119 Chamber
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2028101
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BB-3 Bare
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119 Chamber
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2030000
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BB-3 Pkg
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119 Chamber
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2031000
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BB-3 Pkg (1.625 Spring)
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119 Chamber
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2031002
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119 Chamber
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9992005-3
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119 Chamber
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9992001-3
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119 Chamber
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9992003-3
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Phone: (479) 394-1075 • Fax: (479) 394-1996 • 301 Maple • P.O. Box 1347 • Mena, Arkansas 71953
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| Not legal for sale or use on pollution controlled motor vehicles. |
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© 2008 by Brodix, Inc.
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