Non flex-fuel 3.0 into flex-fuel Ranger

[pianoman99]

I have a 99 Flex-Fuel Ranger with a seized engine (from a CMP gear failure). I bought a 2007 non-Flux-Fuel Taurus 3.0L Vulcan. As I have already learned from the forums, I will be changing the head gaskets to a RWD type and I will be using all of my accessories including intake manifolds and injectors.

My question: I understand that the non-Flex-Fuel heads are different from the Flex-Fuel ones. I would really like to use the Taurus heads because the engine has only 14K miles on it. Should I bite the bullet and get my original heads rebuilt or can I use the Taurus heads? I never have or plan to use E85.

 

[kawasakiman27]

Just keep the non flex heads and don't use e85 ever again. My 99 flex has 2001 non flex heads and works fine.

 

[JP02XLT]

The 07 heads will work fine, I did that on my 02, Mine are even ported & polished heavily. They will be fine. As for running e-85, it should not hurt anything either as you have the ECU to control spark & fuel.

JP02XLT

 

[pianoman99]

Thanks! I will be using the new Taurus heads.

 

[evanesce69]

The flex fuel heads would be worth the rebuild. They have a smaller chamber which increases the compression a bit, which is necessary for the use of E85. If you ever plan on using E85 in the future, spend the $$$ on the FFV heads.

If you decide not to rebuild the heads, maybe you and I can make a deal.....



Rob