Early Windsor Heads On EFI Engines
G'Day all, I have a couple of questions regaeding early, i.e 1960's, Windsor cylinder heads. I currently own a 1998 XHII XR8 ute which has the awful E7 heads on it. We currently have a quite a few sets of 289 and early 302 Windsor heads laying around and I was going to build up a set of these early heads, get the exhaust vale seats done for unleaded, get them ported by a machine shop in Melbourne's south east that we know and buy some roller rockers for them. These early cylinder heads have the same sized valves as the GT-40p's but the one main advantage I can see is that the early heads have smaller sized combustion chambers. My ute currently has 9.0:1 compression ratio, with early 302 heads it would come up to about 9.8/9.9:1. With 289 heads it would go up to about 10.25:1. Now my question, will these early heads bolt up to my EFI engine????? I always run Mobil 98 octane fuel in my ute so if they bolt up I think it might be a good way to grt rid of the horrible E7's as well as giving the old ute a bit more get up and go. Anybodys opinion and thoughts on this matter are more than welcome and I look foward to hearing your responses.
Thanks for your time.