I've got an old Bell Auto catalog with just one page on Crower Cams and it lists a 62T in the Oval Racing section as being for flat track 283 to 327 engines. No info on the B suffix tho. Someone with a proper Crower catalog may chime in. My catalog is 1966 before 307's and 350's were born. Things will have changed since then. swifty
Pull up their web site. Everything is listed by part number. Great folks to work with when I was buying the cam & kit for the Fiat.
The 62TB is now under the part number 00904.Small Block Chevy cam. 288 intake 298 exhaust duration .444 intake lift 467 exhaust. The 62TB was used for a period of time as a short track cam as Swifty stated. The part number was changed to 00904 when they brought the cam back into production in 85. The TB was later given the name Torque Beast. Power is from 1800 to 5500. Sorry I don't have a working knowledge of Engle cams though.