These are new heavily plated show quality upper and lower alternator brackets to fit small block Chevy 267 , 283 , 302 , 305 , 307 , 327 , 350 , and 400 engines from 69 up, however they will work with any long water pump application. Great item to dress up your engine compartment and mount your alternator with style. Also this is designed for the top bracket to bolt to the water outlet housing (thermostat originally on 1969 – 1975 Chevys). Checkout our other auctions for solid or high tech models or that bolt to the intake manifold.(shorter)model