15™ Series/15°

 

 

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[tab title=”Description”]
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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[tab title=”Details”]

Package Heads

Facts and Related Components

• 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

• 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:
Shaft System With 58/107 Spacing, Check
Heads for Intake Offset – T&D 2239,
JESEL KPS 306114, CROWER 7417F

• Lifters:
.180 Offset

• Pistons:
Special 15°

• Pushrods:
Special Length

• Intake Face Angle:
5°

• Valve Centerline:
58/107

• Intake Manifold:
HV 1500 / HV 1501

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[tab title=”Flow Chart”]

Flow Chart cfm @ 28″ H20

 Valve Size
0.200
0.300
0.400
0.500
0.600
0.700
WP 15 SP
(CNC Ported)		2.180 Intake156225275327358362
1.625 Exhaust111164223245254259
WP 15 STD
(CNC Ported)		2.180 Intake156225275327358362
1.625 Exhaust111164223245254259

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[tab title=”Easy Order Numbers & More”]

Basic Easy Order Numbers

Part#Easy
Order #		Port
Vol.		Cham.
Vol.		Int/Ext
Valve 		Spring Seat
Pressure		Spring
Diam.		Ret.
ST/TI		Per
WP 15 SP Bare
125800026751    2
WP 15 SP Pkg
1258100267512.180 TI / 1.625 ST2401.550TI2
WP 15 STD Bare
125800126751    2
WP 15 STD Pkg
1258101267512.180 TI / 1.625 ST2401.550TI2

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[tab title=”Instruction Sheet”][pdfviewer width="1200px" height="849px" beta="true/false"]https://brodix.com/wp-content/uploads/2014/03/smallblockheadinstructions.pdf[/pdfviewer]
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