12/12/2022 0 Comments 4.3 vortec engine identification![]() ![]() No intake,flywheel or balancer on long block. flywheel, 6KR,start full circle rear seal, 7KR, start roller lifterġ985–1992, special service long block for engines with mechanical fuel pump. flywheel, 6KW,start full circle rear sealġ985–1987, 5KR, start 14 in. GM V6 262 cid (4.3L) with Mechanical Fuel Pump – Sterndrive Models (LH rotation) Modelġ985–1986, 5KW, start 14 in. **GM V6 229 cid (3.8L) – Sterndrive Model (LH rotation), flat lifters Model **GM 6 Cylinder 250 cid (4.1L) – Sterndrive Model (LH rotation), flat lifters Model The 350 cid V8 Mercruiser models 5.7L, 350 Mag Mpi, Black Scorpion Ski, etc. 7=General Motor’s model year in this case 1997, BUT this could also be 1987 or 1977. But, if anyone really understands anything from this, it had been well worth the period to form this write-up. The 3.8s are typically front side wheel commute, but many came supercharged. The 4.3 in throttlebody configuration is less difficult to enhance, but lower strength. Information you need from the engine code, example M01187MH. The 4.3, in vortec settings is difficult to improve. Order a GM/Chevy 4. ![]() Refer to the drawing below for the engine code location of your Engine. This 4.3L V6 OHV premium long block engine fits 1996 - 1998 applications for various GM and Chevy vehicles. If the serial number and/or model decals are missing, the Marine Engine code will help to determine the specific engine model/vintage. The model of Mercruiser Engine can be determined by looking at the last letters of the engine code which is stamped in all complete Marine Longblocks by General Motors at the time of assembly. ![]()
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