I've never used one of the Summit rebuild kits, but I wouldn't be afraid of them after looking at this one on Summit's site
. Summit's stuff is made by some of the major aftermarket companies. Looking at the Summit 350 rebuild kit, the oil pump number is very similar to the number for a Melling SBC pump, so I would say it's made by Melling. The gasket kit # is G2600. 2600 is the number for a Fel Pro 350 gasket kit, so probably Fel Pro gaskets.. The rings have "139" in the part #, and 139 is the Hastings number for 350 rings. The installation instruction sheet for the pistons reads the same as the installation sheet for Silvolite pistons, and the form # is UEM-001 (U
ngine & M
achine is the maker of Silvolite and KB hypereutectic pistons and Icon forged pisrons), the same as the Silvolite instruction sheet, so I figure either Silvolite or KB pistons. A big plus is the listing for the pistons shows them to have the standard 350 compression height of 1.56" instead of 1.54" like the rebuilder pistons, so you won't loose compression, and get a big quench, from the shorter pistons.