I installed this on my 91 the whole kit I got to tell you if you do it yourself and its a daily driver plan to drive something else for a while. Maybe the LT1 is easier but the L98 was a ----- ! You will need a stall oh and have fun pulling tranny out to install the stall to the whole exhaust system has to come out ,torque arm bolt directly to tailshaft and rearend had to remove this to.In my opinion if your were thinking about a new exhaust system buy it before you pull tranny out. Oh the real kicker with the cam change was the one peace oil pan gasket you cannot get the front timing cover back on this could be different on LT1 though. After getting it running though man I tell ya this cam pulls hard on top end just has a hint of a rough idle perfect sleeper cam.I also have big mouth intake , runners 52mm throtle body adj. fuel regulator motorsports 30lbs injectors oh and Ed Wright custom chip tuneing needed for 30lbs injectors .Was it worth it

well lets just say it was very hard work I was very Frusterted but in the end Ijust like to look in thre rearview mirror and see the two black stripes from the ole 275/40/17.