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Brodix BB-1 Series 26º Cylinder Heads

Part Number BB-1
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Brodix BB-1 Series 26º Cylinder Heads
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$1,294.00
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Description

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 also comes completely CNCported. The 305 cc intake port flows over 370 cfm and has maximum port velocity. The BB-1 cylinder heads accept standard pistons, intake manifolds, and rocker arms. The exhaust ports are raised .600 higher than stock, and the valve cover rails are now raised to assure no oil leakage. **Heads are being sold as pairs and bare**

  • Ends milled and drilled for accessories
  • Raised valve cover rails
  • A-356 virgin aluminum: easily repaired
  • Ductile iron valve seats for use with unleaded fuel
  • Strongest castings in the business
Cylinder Head Specifications
Intake Port Chamber Volume Valve Sizes Intake/Exhaust Exhaust
Pattern
Valve
Centerline
Intake Manifold
BB-1 280 cc 119 cc 2.250/1.880 Standard Standard HV 2016/
HV 2000
STS BB-1 305 cc 119 cc 2.250/1.880 Standard Standard HV 2000/
HV 2001


Cylinder Head Recommendations
Cubic Inch Compression Camshaft RPM Application
BB-1 396 - 502 10.5 Minimum Hydraulic Roller/
Flat Tappet
2000-6500 Pro Street/
Drag Racing
STS BB-1 427-502 12.0 Minimum Flat Tappet/Roller 3500-7000 Pro Street/
Drag Race

 

Flow Chart cfm @ 28" H20
Valve Size 0.200 0.300 0.400 0.500 0.600 0.700 0.800
BB-1 2.250 Intake 150 209 259 290 300 303
1.880 Exhaust 106 137 166 190 211 225
STS BB-1
(CNC Ported)
2.250 Intake 168 252 314 348 368 375 379
1.880 Exhaust 130 166 200 235 264 283 295

 

 

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