This topic can be somewhat confusing, especially with the amount of details accessible and the interpretation of it. The primary pieces of details you’ll decode are the Engine Code and Partial VIN. GM also changed the crank flange stickout place on the LS1 and Vortec Generation III V8 blocks. When these blocks are made use of in a conversion, the torque converter or clutch components will want to be adjusted. Besides the choice in the design and style of physique kits there is also a option of the material applied in making them. LT1, LT4, ZZ4, LS1, and Vortec blocks all use angle port heads which are not compatible with most of our header systems. With Hyundai Elantra physique kits can modify the appears of the vehicle and make it appear customized.