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B18 to B20 Conversion?? 120-130

posted by  undrtw on  Mon Apr 4 07:47 CST 2005
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last visit: Sat Apr 3 17:37 CST 2010
[RELATED]

My b18 was overbored to 2 liter by the PO.

The wrist pin retaining clip seems to have popped loose and the pin was digging into the block. I think the block is good for a core or an anchor now. Not much meat left in those walls.

The PO did the work so i don't know the numbers but i bet the machine shop will charge a nice chunk to do the overbore. They have to take it out quite a bit.

As previously mentioned, you'd have to do something about the head and compression. Mine has a shaved b20f head with the injector ports plugged and dual SUs.

Saturday I picked up a b20 shortblock with 102k on the odometer for $50 +$15 core. Still has the crosshatch. I'm going to replace gaskets and seals and see how she works out until i have the money to do a full rebuild or swap in a b230ft.

I had to get the flywheel as well, the b18's and early b20's have a 6-bolt pattern on the end of the crank. Later model b20's have an 8-bolt.

I would leave it a b18 and rebuild as necessary or just find yourself a b20 as a starting point.

curtis m. white
http://thirdchoice.com






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