i would advise that because the pins in the main caps can be a pain. Also the plugs for the oil pump housing can be a bitch to press in . If you dont have a tourqe wrench to put main bolts back in then you cant do it. Also you have to drill and tap one hole to put a bolt in. Before your order a kit call jj he may can just do it the way he does alot cheaper man . I gave him my sleeved block to have it checked by his machine shop as a favor because i gave him another block that he needed and he went ahead and welded all my holes up for me so it saved me 150 dollars from buying the kit. Of course i would have installed it my self but now i dont have to worry about it i saved 150 dollars thanks jj i realy appreciate . Thing is guys i didnt even ask him to do it . he just did it to show his appreciation for me giving him a clean h22 to block that he needed now thats a good guy . One that that doesnt expect something for nothing and goes out of there way return a favor to show you how much they appreciate something i wish everybody was like that . Hell i give people shit all the time then when i need something they charge full price it realy gets on my nerves.