IO-390 from a IO-360A1B6
 

Hello, long time lurker wanting to build an RV-14.

I was just wondering if anyone has built a IO-390 using an IO-360A1B6 as a core?

At nearly $40k for a IO-390, I'm wondering if I can get the costs down to something reasonable. Even if the cylinders are $4k a piece, I still would be around $21k-$25k for a total engine.

Try calling Barrett. They may be the best resource for a possible conversion.
http://www.bpaengines.com/

IO-390
 

I bought an IO-390 through Van for well less than 40K. Lycoming offers a discount at Sun-n-Fun and OSH then an additional discount if you buy the prop at the same time. I can't remember the exact price, but it was less than an IO-360.

Yep. They invented the 390 by doing as you describe...580 cylinders on a 360 core.

Welcome to VAF!
 

Mac, welcome aboard the good ship VAF:D

governor location
 

Mac,

You may find this previous post informative.

http://www.vansairforce.com/communit...highlight=a1b6

Thanks guys.

I guess the propeller governor being in the wrong location would be a no go! I will contact barrett and see what they say.

I'm just joking here, but I think it would almost be less expensive to buy some machining equipment and build my own engine. :)

Lycoming builds IO -390 variants with the governor in both acc case and the front locations.

The factory Lyc comes with roller lifters and cam to match.

gov
 

I'm running an angle valve IO-360 C1E6 with gov in front on RV6.
Bob