all the 289 heads are the same, hipo or not. only difference is the hipo heads have screw in studs and machined spring pockets otherwise valves,chambers,ports ,etc are the same.

i have a set of 1970 351w heads that will bolt on. 60 cc chambers,1.84 intake valves,1.54 exhaust. i'm wanting $120 for them and i'll include the special shouldered washers so you can use your headbolts.