These B20B4 pistons are designed to be used with a B16A head.
Compression ratio will be .2 lower with B18C1 crank and B16A head.

4 CYLINDER

BORE: 84.50 mm

OVERSIZE: +.020

STROKE: 3.504 mm

ROD LENGTH: 5.394 mm

COMP. HEIGHT: 1.181 mm

HEAD C.C.: 42.7 mm

COMP. RATIO: 11.6:1

DOME C.C.'S: 3.2

GRAM WEIGHT: 300

Not Designed for use with Turbo or Nitrous

SKIRT STYLE: Full Round Skirt

STANDARD RING SET NOT INCLUDED: JG1004-3327

OPTIONAL RING SET: JXC0F4-3327-2

JG ring series have Gas Nitrided top rings and oil rails.
JC & JXC ring series have chrome top rings and oil rails.

Image shown may not be specific to application.