• 3.080" diameter recess .270" deep.
    • Low compression engine.
    • Piston & Ring Kit.
Attributes
Base Number 3454
Bore (in) 3.875
Bore (mm) 98.4
Bore Diameter 3.875
Compression Ratio 7.6
Country of Origin (Primary) MX
Crown Type DISH
Eng. Disp. In. 250
Eng. Disp. Liters 4.1
Engine Family GM V6
Engine Manufacturer Chevrolet
Hazardous Material Code N
Includes Ring Set 3875AM8.030
Life Cycle Status Code Available to Order
Oe Assembly 3877610
Oil Ring Thickness 0.1875
Oversize 0.03
Oversized Yes
Oversizes STD .020 .030 .040 .060
Pin Configuration Offset
Pin Number 0927x300A
PIN TYPE Press
Piston Head Type Dish
Piston Material Cast 332 Alloy
Piston Pin Outside Diameter 0.927
Piston Rings Included Yes
Ring Pack 5/64, 5/64, 3/16
Second Compression Ring Thickness 0.0781
Sold As Complete Piston and Ring Kit
Top Compression Ring Thickness 0.0781
Top Land 0.265
Year From 1966
Year Range 1966-1990
Year To 1990
GTIN 00800745299383