Oldsmobile

Oldsmobile Forums

:: New Forum Posts

:: Register

:: Search

:: FAQ

Restoration Search

Oldsmobile Tech

Oldsmobile History

FORUMS

:: Alero

:: Bravada

:: Silhouette

:: Intrigue

:: Cutlass

:: Aurora

:: Toronado

:: Ninety-Eight

:: Eighty-Eight

:: 442

Archive

Pistons and Connecting Rods Information

Pistons, Connecting Rods 1964 - 1990

Identification

Pistons

High compression pistons will have a sharp angled notch cut into the piston crown. Low compression pistons have a round cut in their crown. Pistons with both are probably special (eg. '70 W-31 pistons).

Rods

Code   Year(s)     CID/Block Code      Notes
GM     1973        455/Fa
XC     1972        455/F               442