what do i need to make my 13b to a 20b
 

im sure there is a way to keep my old engine and just add an intermediate side housing, and a rotor housing and a rotor, but what are exactly the parts do i need to complete this? or is it more cost effective to just buy a used 20b? well, any help i can get is good cuz my engine is hitting 100k miles soon, and im trying to explore my options......... thanks everyone:D

More cost effective to just buy a 20B.

Yeah, a $500 front center housing, a $700 eccentric shaft, another rotor housing, $1,500 worth of parts to rebuild everything, several thousand dollars worth of raw materials and fabraication to build an oil pan, oil sump system, exhaust...



-Ted

Not to mention the dowel pinning is different on the 20B's. Just buy a used 20B and have it rebuilt. You'll have to build it anyway no matter how you go at it so just buy a used one and build it.

Good Luck,
STEPHEN

Wow, you're talking a lot of money to convert a 13B to 20B. I've seen 20B clips going for $6k - go for one of those!