S P E C Ific A Tio N - Chevrolet 1988 Light Duty Truck Repair Manual

6A4-32 4.8 LITER L6
GENERAL DATA:
Type
Displacement
No. Of Cylinders
Bore
Stroke
Compression Ratio
Firing Order
Oil Pressure
CYLINDER BORE:
Diameter
Out Of Production
Round Service
Production
Taper
Service
PISTON:
Production
Clearance
Service Limit
PISTON RING:
C
o
Groove Production
M
p niparanre>
R
Service Limit
C
S
s Production
Gap
1
0
Service Limit
N
Groove Production
0
Clearance Service Limit
1
Production
L
Service Limit
PISTON PIN:
Diameter
Production
Clearance
In Piston Service Limit
Fit In Rod
SPECIFICATIONS
ENGINE SPECIFICATIONS
All Specifications are in INCHES unless otherwise noted.
Thrust Side
Relief Side
Top
2nd
Top
2nd
In Line
4.8L (292 Cu. In.)
6
3.876
4.12
8.0:1
1 - 5 - 3 - 6 - 2 - 4
16 psi @ 700 RPM; 30-45 psi @ 1500 RPM
3.8750-3.8780
0.0005 (Maximum)
0.002 (Maximum)
0.0005 (Maximum)
0.0005 (Maximum)
0.001 (Maximum)
0.0026-0.0036
0.0045 (Maximum)
0.0020-0.0040
Hi Limit Production ±0.001
0.010-0.020
0.010-0.020
Hi Limit Production + 0.010
0.005-0.0055
Hi Limit Production + 0.001
0.015-0.055
Hi Production +0.010
0.9270-0.09273
0.00015-0.00025
0.001 (Maximum)
0.0008-0.0016 Interference
B-07896