I have a spankin new dual friction for 88-91 preludes. I had an 89 lude but sold it, so this must go---it might work on other b-series i'm not sure--comes w/everything. Retails for 500, letting go for 325 or highest offer. I also have for a b20a5 a full headset(gaskets, seals,etc) piston rings, rod and main bearings(federal mogul) and everything else to rebuild this engine, everything is brand new in boxes-also have receipts.