Trailblazer, Trailblazer EXT, DOHC, 24 Valves, FI, Naturally Aspirated, Gas, Exhaust VVT (Variable Valve Timing) #12580314, ‘LL8’ Engine | Head

Trailblazer, DOHC, 24 Valves, FI, Naturally Aspirated, Gas, V.V.T.# 12589782, Rod Inside Diameter .925″ | Head Cast #: 9960S |

Bel Air, Biscayne, Blazer (Full-Size), Brookwood, C, K Series Trucks, Camaro, Caprice, Chevelle, Chevy II, El Camino, G Series Vans,

Impala, Malibu, Monte Carlo, Uplander, OHV, 12 Valves, FI, Naturally Aspirated, Gas, 8mm Timing Cover Mount, w/ VVT, No AFM,

Uplander, OHV, 12 Valves, FI, Naturally Aspirated, Flex & Gas, LGD, LZ9 Engine | Head Cast #: 12590746, 12624610 |

Impala, OHV, 12 Valves, FI, Naturally Aspirated, Flex, LGD | VIN: M

Monte Carlo, OHV, 12 Valves, Carb, Turbo, Gas, 14 Bolt Oil Pan, No Valley Pan Gskt Included, 1/2″ Oil Return

Camaro, Caprice, El Camino, Impala, Malibu, Monte Carlo, Monza, OHV, 12 Valves, Carb, Naturally Aspirated, Gas, With Timing Cover, Oil