The GM 3800 Series II, a 3.8L V6, is famed for its unmatched durability and simple pushrod design. Found in Buicks, Pontiacs, and Chevrolets, it features a cast-iron block and heads, producing around ...

5. General Motors 3800 Series II V6 (L36) Used in: Buick LeSabre, Pontiac Bonneville, Chevrolet Impala The GM 3800 V6 is one of the most dependable gas engines ever built. With iron block construction ...