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The CNC ported 15 is one of the latest in a long line of heads designed by BRODIX for the dirt late model market.
This new creation features a 15° valve angle, specially raised and shaped intake and exhaust ports, and a newly designed chamber and spark plug angle that works well with any type of fuel.
These new 15° heads are available 100% CNC ported in several different configurations.
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Intake Port
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Chamber Volume
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Valve Sizes Intake/Exhaust
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Plug Angle
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Exhaust
Pattern
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Valve
Centerline
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Intake Manifold
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WP 15 SP
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267 cc
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51 cc
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2.180/1.625
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Angle
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Spread Port
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58/107
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HV 1500/
HV 1501
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WP 15 STD
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267 cc
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51 cc
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2.180/1.625
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Angle
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18° Standard
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58/107
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HV 1500/
HV 1501
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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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WP 15 SP
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358 - 430
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13.5 Minimum
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Roller
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4000-7500
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Oval Track/
Drag Race
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WP 15 STD
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358 - 430
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13.5 Minimum
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Roller
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4000-7500
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Oval Track/
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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WP 15 SP
(CNC Ported)
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2.180 Intake
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156
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225
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275
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327
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358
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362
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1.625 Exhaust
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111
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164
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223
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245
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254
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259
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WP 15 STD
(CNC Ported)
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2.180 Intake
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156
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225
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275
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327
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358
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362
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1.625 Exhaust
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111
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164
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223
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245
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254
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259
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to BRODIX MG 1550
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.180 x 5.850 o.a.l.
• Exhaust Valves:
1.625 x 5.850 o.a.l.
• Valve Springs:
1.550 Roller Valve Spring - GA 1000,
240 lb Closed, 550 lb Open,
1.950 Installed Height,
.700 Maximum Lift
• Retainers:
1.550 10° Titanium - MA 2398BR
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
Shaft System Required
• Valve Seals:
11/32 - US VS529V
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• Torque Heads:
70 ft-lb
• Torque Rocker Studs:
40-45 ft-lb
• Intake Gaskets:
BRODIX MG 1550
• Head Gaskets:
350 - FEL-PRO 1003, COMETIC C5399
400 - FEL-PRO 1004, COMETIC C5403
• Exhaust Gaskets:
Spread Port-
BRODIX MG 52464, COMETIC C5424
Standard- BRODIX MG 1506
• Head Studs:
SK HS 15C/18C AP
(BRODIX Aluminum Block)
• Accessory Bolt Holes Are Drilled
• Spark Plug Starting Points:
NGK R5671A-10 for Alcohol
NGK R5671A-9 for Racing Gas
• Spring Pockets:
1.550 out of the Box, No Larger or Deeper
• Valve Angle:
15°
• Angle Milling:
.0065 in per cc
• Flat Milling:
.0055 in per cc
• Angle Machining:
Not Available
• Pushrod Slots:
58/107
• Stud Girdle:
Not Available
• Rocker Arms:
JESEL, T&D, or CROWER Shaft System With
58/107 Spacing, Check Heads for Intake Offset
• Lifters:
.180 Offset
• Pistons:
Special 15°
• Pushrods:
Special Length
• Intake Face Angle:
5°
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WP 15 SP Bare
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Spread Port Exhaust
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1258000
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WP 15 SP Pkg
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Spread Port Exhaust
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1258100
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WP 15 STD Bare
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Standard Exhaust
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1258001
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WP 15 STD Pkg
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Standard Exhaust
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1258101
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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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