Originally posted by exigent:
I dunno guys... listen to Terry... if the '01 3.0L heads fit... well? Why would anyone not use them? This eliminates and "questions" about the plugs and welds. It also drops the compresion! Sounds like the best of both worlds!!!!! The ONLY way i could see useing svt heads on a 3.0L at this time is if you plan to build a N/A car and have a good welding contact... oh... and of course only if you happen to have a set laying around or on your present block.....
Mostly because of cost, if you can even find one to buy. As long as the cold weld area is properly prepped and at an acceptable thickness, it will be fine. There is no pressure on the two oil returns and the passage tappers as it goes down the block leaving very little chance of separation. The one oil pressure feed that needs to be filled can be tapped and plugged with a factory style allen head plug, with a little cold weld on the threads to prevent it from backing out.
If you want a mild boosted 3 liter, you can still do it by using the pre'01 heads by swapping an electric water pump. Buying an older block and the electric water pump will be cheaper in most instances than buying a '01 complete assembly. Not only will it be cheaper, but you'd get the added performance of removing the water pump AND the added reliability of such a unit over the factory troublesome piece.
