Spec Cylinder Heads To Fit Chevy – Ford – Mopar

The BRODIX Spec. heads are made for tracks wanting cylinder heads that are cost effective and equal for all competitors. These cylinder heads are very durable and user-friendly. Replaceable phosphorous bronze guides are installed along with ductile iron seats. The Spec. head is 100% CNC machined. Do not cut spring seats any larger or deeper than 1.550. Contact your local association for exact rules. Please advise BRODIX of your track affiliation.

Package Heads

Facts and Related Components

• PS CB:
Valve Bowls Blended• PS MI:
Match Intake Port to FP 1206
(SP CH)Match Intake Port to FP 1262
(SP FO)

Match Intake Port to FP 1213
(SP MO)

• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.080 x 4.965 o.a.l. – BR 81019
(SP CH or SP FO)

2.080 x 5.065 o.a.l. – BR 60029
(SP MO)

• Exhaust Valves:
1.600 x 4.965 o.a.l. – BR 81021
(SP CH or SP FO)
1.600 x 5.065 o.a.l. – BR 60030
(SP MO)

• 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° Steel – CC 752

• Valve Locks:
10° Jumbo – CC 611

• Rocker Studs:
7/16 – BR 716L, AR RRS -4I
(SP CH or SP FO)
Shaft System Required
(SP MO)

• Guide Plates:
5/16 – CC 4808
(SP CH)

5/16 – BR 289351
(SP FO)

Not Available
(SP MO)

• Valve Seals:
11/32 – US VS529V

• Torque Heads:
70 ft-lb With 7/16″ Studs• Torque Rocker Studs:
40-45 ft-lb
(SP CH or SP FO)• Torque Rocker Shaft:
30 ft-lb (SP MO)

• Intake Gaskets:
FEL-PRO 1206 (SP CH)

FEL-PRO 1262 (SP FO)

FEL-PRO 1213 (SP MO)

• Head Gaskets:
350 – FEL-PRO 1003
(SP CH)

FEL-PRO 1011-1 or FEL-PRO 1011-2
(SP FO)

FEL-PRO 1008
(SP MO)

• Exhaust Gaskets:
FEL-PRO 1406
(SP CH)

BRODIX MG 1351
(SP FO, “N” Bolt Pattern)

FEL-PRO 1413
(SP MO)

• Head Studs:
ARP 234-4301 (SP CH)

ARP 154-4203 (SP FO)

ARP 144-4204 (SP MO)

• Accessory Bolt Holes Are Drilled Except on SP MO

• 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

• Valve Angle:
23° (SP CH)

20° (SP FO)

18° (SP MO)

• Angle Milling:
Check Rules for Your Association

• Flat Milling:
.0060 in Per cc
(SP CH or SP FO)
.0055 in Per cc
(SP MO)

• Angle Machining:
Not Available

• Dowel Shift:
Not Available

• Pushrod Slots:
Standard (SP CH)

53/119 Spacing (SP FO)

Special (SP MO)

• Stud Girdle:
Standard, BR 6435
(SP CH)

53/119 BRODIX 6430
(SP FO)

Shaft System Required
(SP MO)

• Rocker Arms:
Standard (SP CH or SP FO)
Shaft System Required (SP MO) – T&D 8019,
JESEL KPS 248102

• Lifters:
Standard

• Pushrods:
Special Length

Cylinder Head Specifications

Part Number Intake Port Valve Sizes Intake/Exhaust Plug Angle Exhaust Pattern Valve
Centerline
Intake Manifold
SP CH* 215 cc 2.080/1.600 Straight/Angle Standard Standard See Rule Book
SP FO* 195 cc 2.080/1.600 Angle “N” Style 53/119 See Rule Book
SP MO* 192 cc 2.080/1.600 Angle Standard Standard See Rule Book
* Available in several versions to comply with rule requirements.
Please advise BRODIX sales staff of you track affiliation when ordering heads.

Flow Chart cfm @ 28″ H20

Part Number Valve Size
0.200
0.300
0.400
0.500
0.600
0.650 0.700
SP CH 2.080 Intake 121 176 223 249 261 265 269
1.600 Exhaust   92 134 158 172 179 182 182
SP FO 2.080 Intake 120 180 224 255 267 268 270
1.600 Exhaust 103 130 159 179 191 198 202
SP MO 2.080 Intake 129 180 221 249 263 267 269
1.600 Exhaust 119 160 182 190 195 196 198

Basic Easy Order Numbers

*SP CH
67 Chamber
Custom Order
*SP FO
67 Chamber
Custom Order
*SP MO
67 Chamber
Custom Order
 *Please Advise Brodix Sales Staff of Your Track Affiliation When Ordering Heads.