Seventy468
New member
Was just wondering, I have never had my hands on any blocks.. is there a difference between the lb7,lly,lbz,lmm blocks? I know those engines have other changes, but didnt know if the blocks really changed much.
So as of right now the best duramax engine combo is LBZ short block with Lb7 pistons.. that seem right? How about heads? I am just curious.. I am not trying anything secret. lol I couldnt afford it anyway! I just like knowing that stuff and hopefully will be able to get my hands on it one day. For now.. all I can afford are my BBC's!