Package Heads

Facts and Related Components

• PS MI:
O-Ringed
(1.435 x 2.100)

• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.180 x 5.950 x 5/16

• Exhaust Valves:
1.600 x 5.950 x 5/16

• 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° Titanium – MA 2398BR

• Valve Locks:
5/16 – CC 610

• Valve Seals:
5/16 – CC 500

• Torque Rocker Studs:
40-45 ft-lb

• Intake Gaskets:
O-Ringed

• Head Gaskets:
350 – FEL-PRO 1003, COMETIC C5399
400 – FEL-PRO 1004, COMETIC C5403

• Exhaust Gaskets:
Spread Port – BRODIX MG 52464
(Trim to Fit), COMETIC C5424

• Head Studs:
Available Eclusively From BRODIX-
BRODIX BR HSAP (Aluminum Block)

• Accessory Bolt Holes Are Drilled

• Spark Plug Starting Points:
NGK R5671A-10
for Alcohol
NGK R5671A-9
for Racing Gas

• Intake Valve Seats:
P 2.270 5/16

• Exhaust Valve Seats:
P 1.650 3/8

• Intake Valve Guides:
SHC 502 5/16 AKML

• Exhaust Valve Guides:
SHC 502 5/16 AKM

• Spring Pockets:
1.550 Out of the Box, May be Cut to 1.625 –
No Larger or Deeper

• Valve Angle:
13°

• Angle Milling:
Not Available

• Flat Milling:
.0060 in PER cc

• Angle Machining:
Not Available

• Pushrods:
Special Length

• Rocker Arms:
Shaft System – T&D 2341,
JESEL KPS 20592

• Lifters:
.180 Offset

• Pistons:
Special 13°

• Intake Face Angle:
5°

Valve Centerline:
80/135

Intake Manifold:
Fuel Injection