Sounds like a targetmaster engine from the 80's-90's. Dealer over the counter engine. Before they called them crate engines. Close to 300 go, but not quite. They had no front stamping.or could be a block that got milled, and painted blue. If it was milled, should see broach marks.
1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302. Hugger orange with white stripes. White standard interior. Restoration complete May 2018
Last edited by X-77 keith; Nov 30th, 18 at 06:16 AM.