454 CID (7.4L) / 502 CID (8.2L) SERVICE MANUAL NUMBER 23
Page 3A-70
90-861326--1 MARCH 1999
Reassembly
IMPORTANT: Reassembly of pistons and connecting rods require adherence to the
following steps.
• Piston and pin are machine fitted to each other and must remain together as a
matched set. Do not intermix pistons and pins.
• If original pistons and/or connecting rods are being used, be sure to assemble
pistons and connecting rods so they can be reinstalled in same cylinder from
which they were removed.
• Connecting rod bearing tangs are always toward outside of cylinder block.
72368
a
a-Rod Bearing Tangs
• Notch or valve relief in piston must be positioned correctly for engine that is
being repaired.
72554
a
7.4L Engine
a-Notch - Toward Front Of Engine
72553
a
454 Mag / 502 Mag / 8.2L
a-Valve Relief - Toward Center Of Engine
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