Vortec head questions
I have a set of low milage vortec heads that i planed on using for a mild build up. I was looking at the chamber side and am wondering if having the machine shop do a "chamber sweep" cut to unshroud the valves alittle would be an easy/ cheap way to improve flow, since they will already be in there doing a valve job. Also do you think using exhaust valves with the undercut or necked down stem area is worth the 80$ price / gain in performance. I've been told vortec heads flow alittle weak on the exhaust side.
My goal is a 450hp 400sbc using pump gas, and of course, a tight budget. Are these heads capable?