yes, that company on E bay must be a vendor for Brian Crower Inc.. They are not listed on BC website yet and the tech i talked to said that these are made and machined here in the USA. I also asked if the metal or forging were from overseas and machined here. He said no, that all was done here. on his site he shows Parts for GM LS motors and import engines also.
See This
Brian Crower, Inc. was created to fill the need for high quality, high performance, late model internal engine components, in stock, at very affordable prices. Stroker kits for all popular Sport Compact applications and camshafts and valve train to match. Complete packages designed to work together to deliver more horsepower and torque as well as greater reliability. Brian Crower, Inc. employs state-of-the-art CNC grinding machines to insure exacting tolerances. Small diameter camshaft grinding wheels on certain BC cam part numbers like Honda B and K Series, Nissan SR20 and Mitsubishi 4G63 deliver added valve action for greater cylinder fill rates. All BC crankshafts and connecting rods are made from the highest quality 4340 steel alloy, CNC machined and finished to the tightest industry specifications. Premium grade 6AL4V titanium retainers, 100% RC checked for hardness, and super clean chrome silicone spring wire for the highest rpm range possible. Every product line is tested on precision measuring instruments for accuracy, imperfections and metallurgy. Dyno tested and tuned for optimum results. Brian Crower grew up at Crower Cams & Equipment Company, where he headed up the Crower Sport Compact division since its inception. With Crower Cams heavily focused on the V8 market, Brian saw an opportunity to truly support the needs of the Sport Compact community. With the support of his family, Brian Crower Inc. was formed to deliver the highest quality internal engine components for a variety of popular engine platforms.