I picked this up at a swapmeet. the tag says "235 chevy" but it doesn't look like the one in my '57 motor. Anybody recognize it ? Thanks

[IMG]http://img.photobucket.com/albums/v371/lilbill2180/100_3214_zpsp4biervn.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v371/lilbill2180/100_3217_zpsjqvlsevh.jpg[/IMG]