This longblock is for GM Based Small V8 applications including Mercruiser, Volvo Penta, Crusader, Indmar, Marine Power, etc. There are various changes that were made on the 5.7L engine throughout the years. Select the following link that will assist you in choosing the correct longblock for you application. Technical Tips. This engine comes complete with all associated tin-ware (oil pan, valve covers, timing cover), they do not include the flywheel, balancer or water pump. These engines can easily be identified by the (8) bolts used to fasten the intake manifold to the cylinder heads.

NOTE: There is no provision for mechanical fuel pump, and therefore an electrical fuel pump must be used if retrofitting a pre-1996 style engine. This pump kit is available for $225 and includes the pump, mounting bracket, wiring harness, and instructions.

NOTE: It should be noted that the Vortec 5.7L longblocks are supplied WITHOUT a crank position sensor in the front timing chain cover. Therefore you must remove your existing crank position sensor and re-install it in the timing chain cover of the new longblock, otherwise the engine will leak oil out of this open hole. If your old engine did not utilize a crank pisition sensor you must purchase one to plug this hole as it requires this special o-ring type seal.