I picked up a engine today for the block and as I tore it down found that it had a crane blazer 288-2h cam in it that appears to be in good shape.I dont plan on useing it but wondering some specs on it checked with cranes website they appear to nolonger offer any single bolt cams.It appears to be a old grind and im guessing hyd.

Contact Crane direct.Chase Knight of Crane is a member here,maybe PM him, his handle is CKnight.

This is a hydraulic lifter camshaft, having an advertised duration of 288 degrees intake, and 300 degrees exhaust. Cam lobe lift is .300" intake, .310" exhaust. This results in gross valve lift figures of .450" intake, and .465" exhaust, with the standard 1.5:1 ratio rocker arms. The duration at .050" tappet lift is 218 degrees intake, 230 degrees exhaust. Lobe separation is 114 degrees. Cam timing at .050" is: intake opens 0 degrees BTDC, intake closes 38 degrees ABDC, exhaust opens 54 degrees BBDC, exhaust closes 4 degrees ATDC. This grind can still be custom ordered, but on a three-bolt core. Regards, Chase

That answers all my questions thanks for the response.