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wolfgraj · 04-12-2008, 06:27 PM

I recently bought a cougar with a blown motor (oil starvation) and a slew of body damage(both bumpers are shot). I was looking at doing the 3.0 conversion but have a few questions. I understand the three alternatives but have some specific questions about each.

The hybrid seemed like a perfect solution for me but I'm not sure about the conditions of my 2.5 heads, the cost of cracking the engine open (gaskets, machine work ect) is quite high and compromising the reliability with 11:1 CR doesn't sound fun.

What I am looking at now is the '98-'99 Taurus full 3.0L swap. With this configuration I wouldn't have to port match because these motors already have the split port design (right?). But I still have a few questions....

I have to use the 2.5 valve covers, timing cover, UIM, LIM, and all the accessories (PS pump, AC, alternator) correct?

Does that mean that the IMRC will stay completely functional?

So the swap of one of these motors into a '99 cougar entails
-rewiring 3.0 knock sensor to 2.5 harness
-trimming for alt bracket
-trimming crank for MTX
-electric water pump

Some input would go a long way. Just to make sure I am on the right track and not forgetting something really important.

04-12-2008, 06:27 PM	#1 (permalink)
wolfgraj NECO Member Join Date: Apr 2008 Posts: 10	2.5 to 3.0 questions I recently bought a cougar with a blown motor (oil starvation) and a slew of body damage(both bumpers are shot). I was looking at doing the 3.0 conversion but have a few questions. I understand the three alternatives but have some specific questions about each. The hybrid seemed like a perfect solution for me but I'm not sure about the conditions of my 2.5 heads, the cost of cracking the engine open (gaskets, machine work ect) is quite high and compromising the reliability with 11:1 CR doesn't sound fun. What I am looking at now is the '98-'99 Taurus full 3.0L swap. With this configuration I wouldn't have to port match because these motors already have the split port design (right?). But I still have a few questions.... I have to use the 2.5 valve covers, timing cover, UIM, LIM, and all the accessories (PS pump, AC, alternator) correct? Does that mean that the IMRC will stay completely functional? So the swap of one of these motors into a '99 cougar entails -rewiring 3.0 knock sensor to 2.5 harness -trimming for alt bracket -trimming crank for MTX -electric water pump Some input would go a long way. Just to make sure I am on the right track and not forgetting something really important.