i have a used solid cam/lifters,for a la engine, racer brown, www.4secondsflat.com stx-19m there are 2 cams under this part# here are the specs of both 527 lift with 1.5 rockers 562 with1.6 the diff is the duration at 050 257 for 1 and 262 @050 for the other stx-19m 75.00 shipped cam is missing key way, i needed it for another cam, thanks brian
