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The small block B1 BA is usable for many applications such as Pro Street, oval track, and drag racing. Standard exhaust headers, intake manifolds, and valve covers may be used. A relocated spark plug, along with improved port and combustion chamber design, provides excellent performance gains over any other Mopar compatible heads. If using an R Block that oils through the pushrods, small block Chevrolet rockers may be used. Special guide plates may have to be fabricated to use the Chevrolet rockers. If using a standard 340 or 360 block, standard adjustable Chrysler rocker arms may be used with special B1 stands. Some stock manifolds may require milling. The B1 BA MC has unmachined pushrod slots, requires a shaft mounted rocker system, and uses an intake manifold that works with W-5 or W-7 cylinder heads. The exhaust face is also left blank so that a W-5, W-7, or stock exhaust pattern can be drilled.
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The B1 BS is available in two different versions, out-of-the-box and 100% CNC ported. These versions offer a 90-120 hp gain over their cast iron competitors. The out-of-the-box version has bowls blended, intake ports matched, and a multi-angle valve job. The 100% CNC ported version is completely ported and contoured to assure maximum airflow and velocity. The B1 BS is absolutely the best buy for Mopar racers who would like to replace their cast iron heads and add horsepower. Some special parts such as rockers, head studs, and longer pushrods must be used.
The B1 MO is designed for the serious Chrysler B big block racers and is easily capable of flowing over 400 cfm. The B1 MO requires some special parts such as pistons, rocker system, intake manifold, and valve covers. This head uses standard headers and a B block. A moved centerline (MC) version is also available. All heads in the B1 Series utilize a thick deck that is compatible with nitrous.
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Intake Port
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Chamber Volume
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Valve Sizes Intake/ Exhaust
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Valve Angle
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Exhaust Pattern
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Valve Centerline
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Intake Manifold
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B1 BA
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195 cc
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65 cc
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2.080/1.600
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18°
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Standard-A
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Standard-A
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Small Block Chrysler
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B1 BA MC
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239 cc
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67 cc
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2.150/1.600
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18°
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Drill to Fit
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60/100
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W-5 or W-7 Chrysler
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B1 BS
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230 cc
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65 cc
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2.200/1.810
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15°
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Standard-B
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Standard-B
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Big Block Chrysler
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STS B1 BS
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243 cc
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80 cc
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2.200/1.810
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15°
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Standard-B
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Standard-B
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Big Block Chrysler
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B1 MO
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300 cc
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68 cc
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2.300/1.780
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15°
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Standard-B
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Special
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B1 Manifold
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B1 MO MC
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300 cc
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68 cc
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2.400/1.780
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15°
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Standard-B
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Special
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B1 Manifold
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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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B1 BA
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340 - 400
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11.5 Minimum
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Flat Tappet/Roller
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3500-7000
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Oval Track/
Drag Race/
Pro Street
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B1 BA MC
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380 - 440
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12.5 Minimum
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Roller
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3500-7000
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Oval Track/
Drag Race/
Pro Street
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B1 BS
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400 - 480
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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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STS B1 BS
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400 - 480
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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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B1 MO
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450 - 540
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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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B1 MO MC
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500 - 580
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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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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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0.650
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0.700
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B1 BA
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2.080 Intake
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129
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180
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221
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249
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263
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267
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269
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1.600 Exhaust
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119
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160
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182
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190
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195
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196
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198
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B1 BA
(Ported)
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2.080 Intake
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145
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203
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250
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286
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300
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302
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303
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1.600 Exhaust
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121
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169
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195
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208
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214
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216
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217
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B1 BA MC
(Ported)
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2.140 Intake
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147
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216
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272
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309
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332
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341
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347
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1.600 Exhaust
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120
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170
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198
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210
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215
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219
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220
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B1 BS
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2.200 intake
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145
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204
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249
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284
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294
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295
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295
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1.810 Exhaust
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123
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155
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184
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206
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222
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228
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233
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STS B1 BS
(Ported)
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2.200 intake
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145
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214
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267
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305
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337
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341
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348
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1.810 Exhaust
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126
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171
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211
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238
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255
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269
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279
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B1 MO
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2.300 Intake
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151
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220
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277
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325
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364
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382
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396
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1.780 Exhaust
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116
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174
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216
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227
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227
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227
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227
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to FP 1213
(B1 BA)
Match Intake Port to FP 1214
(B1 BS)
Match Intake Port to FP 1276
(B1 MO or MC)
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.080 x 5.065 o.a.l. - BR 60029
(B1 BA)
2.140 x 5.290 o.a.l. - BR 81050
(B1 BA MC)
2.200 x 5.290 o.a.l. - BR 81049
(B1 BS)
2.300 x 5.380 o.a.l. - BR 86002
(B1 MO)
2.400 x 5.500 o.a.l. - BX 2400-550T Titanium
(B1 MO MC)
• Exhaust Valves:
1.600 x 5.065 o.a.l. - BR 60030
(B1 BA)
1.600 x 5.300 o.a.l. - BR 81051
(B1 BA MC)
1.810 x 5.300 o.a.l. - BR 81081
(B1 BS)
1.780 x 5.400 o.a.l. - BR 86003
(B1 MO or MC)
• Valve Springs:
1.550 Roller Valve Spring - GA 1000,
240 lb Closed, 550 lb Open,
1.950 Installed Height,
.700 Maximum Lift
(B1 BA, B1 BS)
1.625 Roller Valve Spring - MA 221424
260 lb Closed, 790 lb Open,
2.100 Installed Height,
.800 Maximum Lift
(Spring Upgrade - B1 BS, B1 MO or MC)
• Retainers:
1.550 10° Steel - CC 752
1.625 10° Titanium - MA 23640
(B1 BS, B1 MO)
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
Stock Rockers
(B1 BA RS, B1 BA)
Shaft System Required
(B1 BA MC, B1 MO or MC)
B1 BS Rocker System
(B1 BS)
• Valve Seals:
11/32 - US VS529V
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• Torque Heads:
70 ft-lb with 7/16" Studs,
100 ft-lb with 1/2" Studs
• Torque Rocker Studs:
30 ft-lb
• Intake Gaskets:
FEL-PRO 1213 (B1 BA)
FEL-PRO 1214 (B1 BS)
FEL-PRO 1276 (B1 MO or MC)
• Head Gaskets:
FEL-PRO 1008
(B1 BA)
FEL-PRO 1009
(B1 BS, B1 MO or MC)
• Exhaust Gaskets:
FEL-PRO 1413 (B1 BA)
FEL-PRO 1414 (B1 BS, B1 MO)
• Head Studs:
ARP 144-4204 (B1 BA)
ARP 145-4012 (B1 BS)
ARP 145-4007 (B1 MO or MC)
• Accessory Bolt Holes Are Drilled (B1 BS)
• Accessory Bolt Holes Are Not Drilled (B1 BA)
• 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 1.550 (B1 BA),
or 1.625 (B1 BS, B1 MO or MC)
• Valve Angle:
18° (B1 BA)
15° (B1 BS, B1 MO or MC)
• Angle Milling:
Not Available
(B1 BA)
.0065 in Per cc
(B1 BS)
.0070 in Per cc
(B1 MO or MC)
• Flat Milling:
.0055 in Per cc
• Angle Machining:
Not Available
• Dowel Shift:
Not Available
• Pushrod Slots:
Standard
(B1 BA, B1 BS, B1 MO)
Not Machined
(B1 BA MC)
• Pistons:
Standard Closed Chamber
(B1 BA)
Special 18°
(B1 BA MC)
Standard Closed Chamber
(B1 BS)
Special 15°
(B1 MO or MC)
• Rocker Arms:
Special Rocker Stand Kit for Stock Rockers
(B1 BA)
JESEL or T&D Shaft System
(B1 BA MC, B1 MO or MC)
B1 BS Rocker System
(B1 BS)
• Lifters:
Standard
• Pushrods:
Special Length
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B1 BA Bare
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65 Chamber
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3180000
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B1 BA Pkg
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65 Chamber
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3181000
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B1 BA MC Bare
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67 Chamber
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3180002
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B1 BA MC Pkg
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67 Chamber
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Custom Order
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B1 BS Bare
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65 Chamber
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3180001
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B1 BS Pkg
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65 Chamber
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3181002
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STS B1 BS Bare
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80 Chamber
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3188000
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STS B1 BS Pkg
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80 Chamber
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3188100
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B1 MO Bare
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68 Chamber
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3150000
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B1 MO Pkg
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68 Chamber
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3151000
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B1 MO MC Bare
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68 Chamber
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Custom Order
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B1 MO MC Pkg
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68 Chamber
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Custom Order
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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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© 2009 by Brodix, Inc.
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