Camaro, S, T Series (Pickup, Blazer), OHV, 12 Valves, FI, Naturally Aspirated, Gas, LB8 Engine, Cast Iron Block & Heads

Colorado, DOHC, 16 Valves, FI, Naturally Aspirated, Gas, LK5 Eng. w/ VVT #12179012 | Head Cast #: 4059 | Block

Malibu, DOHC, 16 Valves, FI, Naturally Aspirated, Gas, LCV, Cali NU6 With SMOG, Dual V.V.T. | VIN: A

Malibu, DOHC, 16 Valves, FI, Naturally Aspirated, Gas, LCV, Fed NT7 or Cali NU5, No SMOG Dual V.V.T. | VIN:

Impala, Malibu, DOHC, 16 Valves, FI, Naturally Aspirated, Gas, LKW, Cali NU6 With SMOG, Dual V.V.T. | VIN: L

Impala, Malibu, DOHC, 16 Valves, FI, Naturally Aspirated, Gas, LKW, Cal NU6 with SMOG, Dual V.V.T. | VIN: L

Monza, OHV, 8 Valves, Carb, Naturally Aspirated, Gas, No SMOG, Thermostat Open to Front | Head Cast #: 552, 702

Citation, OHV, 8 Valves, Carb, Naturally Aspirated, Gas, SMOG Holes in Head Over Each Exhaust, Thermostat Open in Back of