• Hypereutectic.
    • 2.000" diameter recess .065" deep.
    • 2 valve reliefs.
    • Truck engine.
    • * Same as 3403H with coated skirts.

Application Summary:

Year Make/Model
1990 Chevrolet C1500
1981-1986 Chevrolet C20
1981-1986 Chevrolet C20 Suburban
1981-1986 Chevrolet C30
1988-1990 Chevrolet C3500
1988-1990 Chevrolet G30
1985 Chevrolet K20 Suburban
1981-1986 Chevrolet K30
1988-1990 Chevrolet K3500
1981-1990 Chevrolet P30
1987-1988 Chevrolet R20
1987-1988 Chevrolet R20 Suburban
1989 Chevrolet R2500
1989-1990 Chevrolet R2500 Suburban
1987-1988 Chevrolet R30
1989-1990 Chevrolet R3500
1987-1988 Chevrolet V20 Suburban
1990 Chevrolet V2500 Suburban
1987-1988 Chevrolet V30
1989-1990 Chevrolet V3500
1981-1986 GMC C2500
1981-1986 GMC C2500 Suburban
1981-1986 GMC C3500
1988-1990 GMC C3500
1988-1990 GMC G3500
1981-1986 GMC K3500
1988-1990 GMC K3500
1981-1990 GMC P3500
1987-1989 GMC R2500
1987-1990 GMC R2500 Suburban
1987-1990 GMC R3500
1987-1990 GMC V3500
Attributes
Base Number 3403HC
Bore (in) 4.25
Bore (mm) 108
Bore Diameter 4.25
Compression Ratio 8.9, 9.1
Country of Origin (Primary) MX
Crown Type DISH
Eng. Disp Liters 7.4
Eng. Disp. In. 454
Eng. Disp. Liters 7.4
Engine Family Chevy Big Block Mark IV
Engine Manufacturer Chevrolet
Hazardous Material Code N
Life Cycle Status Code Available to Order
Oe Assembly 14071100, 10106471, 14071100, 10048941, 340209
Oil Ring Thickness 0.1875
Oversize .030
Oversized Yes
Oversizes STD .020 .030 .040 .060
Pin Configuration Offset
Pin Number 0990x230A
PIN TYPE Press
Piston Head Type Dish
Piston Material Cast 390 Hypereutectic Alloy
Piston Pin Outside Diameter .990
Ring Pack 5/64, 5/64, 3/16
Second Compression Ring Thickness 0.0781
Sold As Complete Piston Set
Top Compression Ring Thickness 0.0781
Top Land .224
Year From 1981
Year Range 1981-1990
Year To 1990
GTIN 00800745078056