Chevrolet Corvair Engine - Engine Serial Number Codes

Engine Serial Number Codes

The following codes (last two digits of engine serial number) identify the year, size, power, and transmission of the engine

• YC 6 cyl with M/T, 1962-64
• YH 6 cyl with M/T, 1962
• YL 6 cyl with M/T A/C, 1962-64
• YM 6 cyl with A/C HPE, 1962-63
• YM 6 cyl with T/C 4 sp Tr, 1964
• YN 6 cyl with M/T HPE, 1962-64
• YR 6 cyl with T/C 4 sp fr, 1962
• Z 6 cyl with A/T, 1960-64
• ZB 6 cyl with A/T, 1962
• ZD 6 cyl with A/T A/C, 1962-64
• ZF 6 cyl with A/T HPE, 1962-64
• ZG 6 cyl with A/T, A/C, HPE, 1962-64
• ZH 6 cyl with A/T, 1962-64
• ZJ 6 cyl with A/T, A/C, 1962
• Y 6 cyl with M/T HPE, 1962-63
• RL 6-164 with T/C, 1966
• RM 6-164 with M/T, SHPE, 1965-67
• RN 6-164 with SHPE, P/G, 1965-67
• RQ 6-164 with SHPE, AIR, 1966-67
• RR 6-164 with A/C, 1966
• RS 6-164 with M/T, AIR, 1965-68
• RS 6-164 with AIR, 1966
• RU 6-164 with M/T, HPE, AIR, 1965-68
• RV 6-164 with P/G, AIR, 1965-68
• RW 6-164 with HPE, AIR, P/G, 1966-68
• RX 6-164 with P/G, HPE, AIR, 1965-67
• RY 6-164 with A/C, SHPE, 1966-67
• RZ 6-164 with SHPE, A/C, 1966-67
• RA 6-164 with M/T and A/T, 1965-67
• RB 6-164, 1965-66
• RD 6-164 with HPE, 1965-67
• RE 6-164 with A/C, 1965-68
• RF 6-164 with HPE, A/C, 1965-68
• RG 6-164 with P/G, 1965-67
• RH 6-164 with P/G, HPE, 1965-67
• RJ 6-164 with P/G, A/C, 1965-68
• RK 6-164 with P/G, HPE, A/C, 1965-68
• QO 6-164 with P/G, AIR, A/C, 1967
• QP 6-164 with HPE, P/G, AIR, A/C, 1967
• QQ 6-164 with SPHE,AIR, A/C, 1967
• QR 6-164 with SPHE, AIR, A/C, P/G, 1967
• QS 6-164 with HPE, AIR, A/C, 1967

Terms

• A/C: Air conditioned
• A.I.R.: Air Injection Reactor
• A/T:Automatic transmission
• HPE: High performance engine
• P/G: Powerglide
• SHPE: Special Hi Perf. Engine
• T/C: Turbocharged