Does anybody know the actual measurement of the piston diameter ?

 

Sorry forgot to put the rest. Does anybody know the actual piston diameter on a 4.00 bore stock piston. Lq4.

 

I'll see what I can find for ya.

Off an 04 Tahoe 2wd.

Metric
English

General

Engine Type
V8

Displacement
6.0L
364 CID

RPO
LQ4

VIN
U

Bore
101.618-101.636 mm
4.0007-4.0014 in


Cylinder Bore Diameter
101.618-101.636 mm
4.0007-4.0017 in

Cylinder Bore Taper - Thrust Side
0.018 mm
0.0007 in

Piston - Piston Diameter - Measured Over Skirt Coating
101.606-101.640 mm
4.0002-4.0016 in

Piston - Piston to Bore Clearance - Production ****************
0.022-0.03 mm - interference
0.0009-0.0012 in - interference
*************************
Piston - Piston to Bore Clearance - Service Limit with Skirt Coating Worn Off ************************************************** *******
0.07 mm
0.0028 in
*******