Dodge RAM 1500 1998 Owner's Manual page 1324

DR
ENGINE - 4.7L (Continued)
DESCRIPTION
Face Angle
Head Diameter
Intake
Exhaust
Length (Overall)
Intake
Exhaust
Stem Diameter
Intake
Exhaust
Stem - to - Guide
Clearance
Intake
Exhaust
Max. Allowable Stem - to
- Guide Clearance
(Rocking Method)
Intake
Exhaust
Valve Lift (Zero Lash)
Intake
Exhaust
VALVES
SPECIFICATION
45° - 45.5°
48.52 - 48.78 mm
(1.9103 - 1.9205 in.)
36.87 - 37.13 mm
(1.4516 - 1.4618 in.)
113.45 - 114.21 mm
(4.4666 - 4.4965)
114.92 - 115.68 mm
(4.5244 - 4.5543 in.)
6.931 - 6.957 mm
(0.2729 - 0.2739 in.)
6.902 - 6.928 mm
(0.2717 - 0.2728 in.)
0.018 - 0.069 mm
(0.0008 - 0.0028 in.)
0.047 - 0.098 mm
(0.0019 - 0.0039 in.)
0.069 mm (0.0028 in.)
0.098 mm (0.0039 in.)
11.25 mm (0.443 in.)
10.90 mm (0.4292 in.)
VALVE SPRING
DESCRIPTION
Free Length (Approx)
Intake
Exhaust
Spring Force (Valve
Closed)
Intake and Exhaust
Spring Force (Valve
Open)
Intake and Exhaust
Number of Coils
Intake
Exhaust
Wire Diameter
Intake and Exhaust
Installed Height (Spring
Seat to Bottom of
Retainer)
Nominal
Intake
Exhaust
ENGINE - 4.7L 9 - 101
SPECIFICATION
49.0 mm (1.9291 in.)
49.0 mm (1.9291 in.)
313.0 - 354.0 N @ 40.12
mm
(70.365 - 79.582 lbs. @
1.5795 in.)
776.0 - 870.0 N @ 28.88
mm
(174.451 - 195.583 lbs.
@ 1.137 in.)
7.3
7.3
4.6 × 3.67mm
(0.1811 - 0.1445 in.)
40.12 mm (1.579 in.)
40.12 mm (1.579 in.)