Package Heads

Facts and Related Components

• 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 – PAC 1941,
255 lb Closed, 610 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 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