The least expensive part of a supercharged engine is the shortblock! All the money is what you put on top of it, If your engine runs good, Id leave it in the car and enjoy it while it still drives, You will be happy in the long run, Id build another short block and have everything ready, then do the switch and you have a good selling engine or short block if you use your heads, Go with a quality piston I would not use a heavy speed pro or trw they are quite weak the oil ring groove is slotted from side to side for the oil return, and they really dont like alot of cyl psi, For economy if thats where your at SRP has quite a good selection of off shelf piston as well as Probe keep static around 9.0 to 9.25 with aluminum heads on a centrifugal type supercharger, Youll need to figure your compression height to figure it out, Also a good thing to do is on the bottom of the cyl bore take a cartridge roll and run a slight radius on it This will help the oil from not being scraped off the piston, and fresh machine work from not cutting the skirts, Also go with a gapless second ring, Standard low friction rings rotate in the cylinder and if the gaps get about .250 alighn You will get a cutting torch effect and thats not good, Good luck on the project Jeff
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