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There's several "kits" and parts available. Most involve modification of small block valve covers. There's a member on the OBS/400 forum that has a beautiful '49 GMC tow rig dually with a 6.0 in it. He's got it done up like an old school early 60s small block, even down to custom valve cover decals. His username on there is OutlawDrifter.Has anyone ever made a 5.3l look like a 5.7? If so what parts did you use.