Quote Originally Posted by tango
Before any one here starts to port out a set of stock Chevy heads . Make sure you have a lot of extra time ! I have 7 Hours on one SB head and it's around 80% done . The heads that I am porting are the 305ci #601 55-58cc . I always hear how good they are when full ported . And how much power they make on the round and round 355 Claimer engines . Well good thing I have more time then money . I would say don't buy these 305 heads thinking you will port them easy and make Lots of power . When I am done they will work good . And this set of heads has screw in studs guide plates and S/S valves . Also a set of Z-28 LT-1 springs with HD retainers and Locks . Them old Fuelly heads never needed this much grinding
The only 2 real reasons to port out a set stock heads is one if you going to be running with rules that specify "stock" heads. Two, if for some reason you just have to have your stock heads. There are so many better heads that you can get for a real decent price. Heck you can even find alum. heads real cheap.