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The BB-1 rectangular port head has a 280 cc intake port and a 119 cc combustion chamber, but may be angle milled to 108 cc or angle machined to 98 cc. The BB-1 is designed for a 396 to 502 engine with a flat tappet or hydraulic cam. Most marine applications use this head for torque and throttle response.
The BB-1, out of the box, may have spring pockets cut to 1.625, but no larger or deeper. This head accepts all standard parts including intake manifold, pistons, headers, pushrods, and valve covers. The exhaust ports are raised .600 higher than stock.
The BB-1 also comes completely CNC ported. The 305 cc intake port flows over 370 cfm and has maximum port velocity.
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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-1
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280 cc
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119 cc
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2.250/1.880
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Standard
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Standard
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HV 2016/
HV 2000
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STS BB-1
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305 cc
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119 cc
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2.250/1.880
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Standard
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Standard
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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-1
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396 - 502
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10.5 Minimum
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Hydraulic Roller/
Flat Tappet
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2000-6500
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Pro Street/
Drag Racing
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STS BB-1
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427-502
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12.0 Minimum
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Flat Tappet/Roller
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3500-7000
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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-1
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2.250 Intake
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150
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209
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259
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290
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300
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303
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1.880 Exhaust
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106
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137
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166
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190
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211
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225
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STS BB-1
(CNC Ported)
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2.250 Intake
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168
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252
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314
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348
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368
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375
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379
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1.880 Exhaust
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130
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166
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200
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235
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264
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283
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295
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to BRODIX MG 2001
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.250 x 5.218 o.a.l. -BR 81040
(Standard Package)
2.250 x 5.318 o.a.l. - BR 81140
(Spring Upgrade)
• Exhaust Valves:
1.880 x 5.394 a.o.l. - BR 81038
(Standard Upgrade)
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
• 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
• Head Gaskets:
4.310 - FEL-PRO 1027, COMETIC C5432
4.540 - FEL-PRO 1017, COMETIC C5433
• 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
• Pushrods:
Check Pushrod Clearance with Head Installed on the
Engine Block Before Final Assembly
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BB-1 Bare
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119 Chamber
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2010000
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BB-1 Pkg
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119 Chamber
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2011001
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BB-1 Pkg
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115 Chamber
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2011004
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BB-1 Pkg
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110 Chamber
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2011007
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STS BB-1 Bare
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119 Chamber
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2018001
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STS BB-1 Pkg
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119 Chamber
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2018102
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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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