Engine Classification
Chevrolet V8 engines are classified as either Small V8 or Mark IV. The 396", 402", 427" and 454" engines are classified as the Mark IV engines, all others are classified as Small V8 engines.
1968 Models
| 396" | ED, EF, EG, EK, EL, ET, EU, IA, IG, IU, MQ, MR, MT, MW, MX, MY. |
| 427" | ID, IH, IJ, IL, IM, 10, IQ, IR, IT, IU. |
1969 Models
| 396" | JA, JB, JC, JD, JE, JF, JG, HG, Jl. JJ, JK, JL, JM, JN, JO, JP, JQ, JR, JT, JU, JV, KA, KB, KC, KD, KE, KF, KG, KH, Kl. |
| 427" | LA, LB, LC, LD, LE, LF, LG, LH(LI, LJ, LK, LL, LM, LN, LO, LP, LQ, LR, LS, LT, LU, LV, LW, LX, LY, LZ, MA, MB, MC, MD. |
1970 Models
| 396" (402") | CJF, CJI, CTW, CTX, CTZ, CJL, CJH, CKO, CKP, CKQ, CKT, CKU, CTY. |
| 400" (402") | CKR, CKS, CTW, CTX, CTY, CKO. |
| 454" | CGV, CGS, CRN, CRQ, CRT, CGT, CGU, CGW, CZU, CRI, CRR, CRS, CRV, CZL, CZN. |
1971 Models
| 402" | CLB, CLL, CLP, CLA, CLR, CLS, CLC, CLD. |
| 454" | CPA, CPD, CPG, CPH, CPJ, CPO, CPX, CPK, CPL, CPP, CPR. |
1972 Models
| 402" | CLB, CLA, CLK, CLJ, CLL, CLR, CLS. |
| 454" | CPG, CPD, CPA, CPZ, CPY, CPH, CPJ, CSR, CSS. |
1973 Models
| 454" | CWA, CWB, CWC, CWD, CWJ, CWK, CWL, CWM, CWR |