Mercury 305 CID - L; 305 CID; 5.7 L; 350 CID Engine

ENGINES - 3A-790-823225--1 1096
5.0L / 305 CID / 5.7L / 350 CID Engine Specifications (Does Not Include Gen +)
Unit Of Measurement
In. (mm)
CYLINDER BORE
ENGINE 5.0L / 305 CID 5.7L / 350 CID
Diameter
3.7350-3.7385
(94.8690-94.9579)
3.9995-4.0025
(101.5873-101.6635)
Out of Round Production .001 (0.025) Max
Out of Round Service .002 (0.05) Max
T
Production
Thrust Side .0005 (0.012) Max
Taper
Production
Relief Side .001 (0.02) Max
Service .001 (0.02) Over Production
PISTON CLEARANCE
Production
.0007-.0017 (0.017-0.043) Max
Service .0027 (0.07) Max
PISTON RING: COMPRESSION
GCl
Production
Top
0012
-
0032 (0 030
-
0 081)
Groove Clearance
Production
2nd
.
0012
-.
0032
(0
.
030
-
0
.
081)
Service High Limit Production + .001 (0.025)
G
Production
Top
.010-.020 (0.254-0.508)
()
Gap
Production
2nd
()
.010-.025 (.0254-.0635)
Service High Limit Production + .010 (0.25)
PISTON RING: OIL
Groove Clearance
Production .002-.007 (0.051-0.177)
Groove
Clearance
Service High Limit Production + .001 (0.025)
Gap
Production .015-.055 (0.381-1.397)
Gap
Service Limit High Limit Production + .010 (0.254)
PISTON PIN
Diameter .9269-.9271 (23.545-23.553)
Clearance
Production .0002–.0007 (0.005-0.017)
Clearance
Service Limit .001 (0.02) Max
Fit in Rod .0008-.0016 (0.020-0.406) Interference