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The BRODIX PB 2005 cylinder head was designed by legendary engine builder Sonny Leonard. If you are looking for raw horsepower in a cylinder head, here is your answer. The PB 2005 is simply the best of the best. This head is offered in two versions, out-of-the-box and completely CNC ported. The out-of-the-box version flows an unbelievable 535 cfm. CNC ported, the PB 2005 flows over 560 cfm; this is unmatched by any other 4.840 bore spacing head. Valve sizes include 2.520 intake valves and 1.860 exhaust valves, both with a 55º seat angle. All of this horsepower would go to waste without the strong castings BRODIX provides. As usual, the PB 2005 offers the standard qualities of solid phosphorous guides, gorilla valve seats, extra thick deck, and the best aluminum in the business (A-356 Virgin Aluminum).
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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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Intake Manifold
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PB 2005
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490 cc
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83 cc/79 cc*
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2.520/1.860
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Standard
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PM 1807/PM 1817
PM 1907/PM 1917
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STS PB 2005
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490 cc
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84 cc/80 cc*
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2.520/1.860
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Standard
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PM 1807/PM 1817
PM 1907/PM 1917
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* Chamber Volume With Stealth Titanium Valves
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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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PB 2005
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582 Minimum
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14.0 Minimum
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Roller
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4500-8000
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Pro Street/
Drag Race/
Truck Puller
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STS PB 2005
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582 Minimum
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14.1 Minimum
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Roller
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4500-8000
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Pro Street/
Drag Race/
Truck Puller
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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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0.900
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PB 2005
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2.520 Intake
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129
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199
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287
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363
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431
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482
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517
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540
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1.860 Exhaust
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111
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156
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196
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231
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258
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274
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287
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293
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PB 2005
(Minor Port)
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2.520 Intake
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153
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241
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323
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395
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452
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499
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517
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540
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1.860 Exhaust
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132
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187
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227
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258
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289
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326
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338
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343
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STS PB 2005
(CNC Ported)
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2.520 Intake
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144
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222
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309
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384
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451
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505
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548
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563
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1.860 Exhaust
(Titanium Tulip)
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119
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182
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229
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265
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301
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333
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357
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362
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to BRODIX MG 2015
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.520 x 6.920 o.a.l. - BR 81692,
55° Seat Angle
• Exhaust Valves:
1.860 x 6.600 o.a.l. - BR 81686,
55° Seat angle
• Valve Springs:
1.645 Roller Valve Spring - CC 948,
315 lb Closed, 915 lb Open,
2.100 Installed Height,
.850 Maximum Lift
• Retainers:
1.645 10° Titanium - MA 2001
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
Shaft System Required
• Valve Seals:
11/32 - US VS485V
Special Intake, Exhaust Gaskets, and Valve Cover 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 2015
• Head Gaskets:
4.540 - FEL-PRO 1017, COMETIC C5433
4.600 - FEL-PRO 1057, COMETIC C5434
• Exhaust Gaskets:
BRODIX MG 2005
• Valve Cover Gaskets:
BRODIX MG 2016
• Head Studs:
Available Exclusively From BRODIX -
BRODIX BR HS PB 2005 CI BLK (12pt)
for Cast Iron Block
BRODIX BR SK HS/PB 2005 (12pt)
for Aluminum Block
• Accessory Bolt Holes Are Drilled
• Spark Plug Starting Points:
NGK R5671A-10
for Alcohol
NGK R5671A-9
for Racing Gas
• Spring Pockets:
May Not be Cut Any Larger
or Deeper Than 1.750
• Valve Angle:
14.5° and 4° Intake,
6° & 4° Exhaust
• Angle Milling:
Not Available
• Flat Milling:
.0055 in Per cc
• Angle Machining:
Not Available
• Dowel Shift:
Not Available
• Pushrod Slots:
Standard
• Rocker Arms:
T&D Shaft System, TD 3051
• Lifters:
Standard
• Pistons:
Standard 14.5° x 6° Valve Angle
• Pushrods:
Check Pushrod Clearance with Head Installed on the
Engine Block Before Final Assembly.
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PB 2005 Bare
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490 cc Intake Runner
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2140000
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PB 2005 Pkg
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490 cc Intake Runner
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2141000
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PB 2005 Bare (Minor Port)
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490 cc Intake Runner
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Custom Order
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PB 2005 Pkg (Minor Port)
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490 cc Intake Runner
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Custom Order
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STS PB 2005 Bare
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2148000
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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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