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V8 Engine Code Location

Code for 260", 350" (Exc. O-mega), and 455" V8 engines are identified by a code tape installed directly above engine unit number stamped on engine oil fill tube. Omega 350" V8 engines are identified by a code stamped on a machines face on engine block on left side below first two spark plugs. The 400" V8 is identified by code letters on front of engine block below right cylinder head.

Fig 1: V8 ENGINE CODE LOCATION
G09354790Courtesy of GENERAL MOTORS COMPANY
Engine Code Displ. & Carb.
FP, FR, (Fed) 231" V6 2-Bbl.
FS, (Calif) 231" V6 2-Bbl.
CJU, CJT, (Fed) 250" 6 Cyl. 1-Bbl.
GIL, (Calif) 250" 6 Cyl. 1-Bbl.
TE, TJ, TP, TT, (Calif) 260" V8 2-Bbl.
QK, QA, QD, QN, QE, QB, QC, QJ, QP, (Fed) 260" V8 2-Bbl.
RS, RT, (Fed) 350" V8 2-Bbl.
RW, RX, TL, TO, TY, TW, TU, TX, (Calif) 350" V8 4-Bbl.
QL, QD, RW, RX, QU, QX, (Fed) 350" V8 4-Bbl.
YH, (Fed) 400" V8 2-Bbl.
YM, YT, YL, (Fed) 400" V8 4-Bbl.
VB, VC, VE, VD, VP, (Calif) 455" V8 4-Bbl.
UB, UC, UE, UD, UP, (Fed) 455" V8 4-Bbl.