There should be no difference between the l18 and l20 i believe they are the same at 85mm. Unless the l18 had flat top pistons stock. Not sure. but either way a set of flat top pistons would be a good option.. don't know if they need a need the valve relief in the face or not.. There's a lot of guys here with the l20b motor so you'll get alot of good opinions with this post...
The dish in the L18 is supposed to be smaller than the L20B. You do not need a valve relief in the pistons.
Posted by Doctor510
on 20 February 2017 - 06:56 PM
Lol no guppy hands here. I was asking if one would pull the engine just to replace that freeze plug? Drove the truck around all day today and ran like a top, love driving it when its warm and sunny out.