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Message: <blockquote data-quote="INW-Iron-Steel" data-source="post: 27059" data-attributes="member: 11733">Not buying shit parts is SO hard! It sucks, but that usually just means forking over more money... But, as far as camshafts, stick to ones that are OE quality or better. For instance, Cam Motion has multiple options for cam cores. Of course the better quality 8620 core is more expensive than the 5150 core. Here is some info about cam cores directly from them.[URL unfurl="true"]https://cammotion.com/ls-camshaft-cores#:~:text=Our%208620%20camshafts%20are%20a,of%20the%20the%208620%20alloy[/URL]This is tough, it is easy to make a great driver a horrible daily with too much camshaft. Additionally, more lift will be harder on the valvetrain, and the valvetrain will not live as long. This would be a huge factor in a daily driver for me. I would be inclined to go what I call the "OE Plus" route here. It really depends on how involved you want to get. If oil pressure was not an issue and mileage is under 200K, I might be inclined to leave the bottom end alone. Clean the oil pick-up and do the O-ring. Obviously some new lifters. 243/799 heads would be a nice simple upgrade with "LS6" style springs. Paired with a "low-lift" aftermarket cam would make for a reliable combination. Now, these "low-lift" "small" aftermarket cams are still miles ahead of the anemic camshafts GM installed from the factory. If you're wanting to go full rebuild, grab some 4.8 pistons. Pairing the flat top pistons with 799 heads would yield an iron block L33. Oh, and trailblazer tq converter paired with the mild cam.On the Silverado, have you considered LS3 style rectangle port heads? These would be even better with boost, and I think all you would need is the correct Gen 4 truck intake. You could also use the LSA supercharger if you want. As far as camshaft, BTR truck norris cam. While somewhat small, it just seems to flat out work. Solid low speed torque and power under the curve. In all honesty, any cam can be a boost cam. If it makes decent power NA, it will make decent power with boost. (If you haven't watched Richard Holdener's videos on youtube, he is a wealth of knowledge on LS stuff.)Edit: I assumed the 1500HD is a 6.0. The LS3 heads WILL NOT work on the smaller bore 4.8/5.3/5.7 blocks.[MEDIA=youtube]R42y-LKwQsY[/MEDIA]</blockquote>