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The introduction of the PB 5000 series head blows the 5.0 bore spacing market wide open. This 100% CNC ported masterpiece is by far the most user-friendly head in its class. This head offers several features that include: 15º valve angle, 506 cc raised oval-shaped intake ports, and 80 cc combustion chambers. The standard features are copper valve seats, phosphorous bronze valve guides, and A-356 virgin aluminum alloy. These heads are machined to accept 1.740 spring cups and are to be used with sheet metal intake manifolds only.
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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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KC PB 5000
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506 cc
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80 cc
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2.520/1.860
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PB 5000
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Custom Sheet Metal
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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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KC PB 5000
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632 Minimum
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14.0 Minimum
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Roller
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4500-8000
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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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KC PB 5000
(CNC Ported)
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2.520 Intake
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154
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237
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323
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398
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347
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506
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539
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557
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1.860 Exhaust
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116
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172
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219
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263
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297
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330
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351
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364
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to BRODIX MG 5010
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.520 x 6.900 o.a.l. - 55° Seat Angle
• Exhaust Valves:
1.860 x 6.820 o.a.l. - 55° Seat angle
• Valve Springs:
1.650 Roller Valve Spring - MA 221448,
350 lb Closed, 890 lb Open,
2.150 Installed Height,
.900 Maximum Lift
• Retainers:
1.645 10° Jumbo - MA 2001
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
Shaft System Required
• Valve Seals:
11/32 - US VS485V
Special Intake Gaskets, 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 5010
• Head Gaskets:
Call For Part Number
• Exhaust Gaskets:
BRODIX MG 5020
• Valve Cover Gaskets:
BRODIX MG 5000
• Head Studs:
Available Exclusively From BRODIX -
SK HSPB5000
• 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:
15° and 6° Intake,
6° and 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:
Jesel Shaft System
• Lifters:
Standard
• Pistons:
Standard 15° x 6° Valve Angle
• Pushrods:
Check Pushrod Clearance with Head Installed on the
Engine Block Before Final Assembly.
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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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Permission is granted to view and print materials from Brodix.com for the non-commercial purpose of viewing, reading, and retaining them for reference.
Any other copying, distribution, retransmission, or modification of information or materials on this site - whether in electronic or hard copy form - without the express prior written permission of Brodix, Inc., is strictly prohibited.
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