Piston ID

[rb77413]

Well I had some trouble with my 383 that requires a rebuild. Good and bad. I pulled the heads (Going on another project) and the pistons had L2315 on them. They are .030 over, flat tops. Are these forged? I seen forged listed as L2315F. I was told they were forged when I got the engine. Also what CR will they give. They were under a set of 906's with no milling. I am guessing a 9:1 CR? The pistons have a small plug thing in the middle. I dont have a pic yet. Anyone else runngi these? When it gets back together it is getting sprayed, so I want to make sure these are forged while the engine is apart. ONe more thing, what about decarbonizing them? carb cleaner and a rag? Any quicker ways. Thanks

[ehostler]

Those that can, build an engine for the power that they want. Those that can't, spray...

Come on, at 9:1, you can bolt on an ATI ProCharger for under $3,000 and make much more power than nitrous. That power is also easier on the engine and has less risk of causeing a catastrophic failure.

[hedgehog]

Those are forged pistons. They are around 9:1 depending on exact head cc's and piston deck height. If your rebuilding the engine, have the machinist tape off the ring belt and glass bead the piston tops.

[perfmachst]

hello, remember the old addage' MEN make horsepower, babies need bottles!!!!!!!!!! and bottles break parts, period!!!!

[rb77413]

ok ok sorry about the nitrous suggestion. Was only going to go that route since it is easiest, however, my main idea was to get a set of Eddy's being aluminum and all then bolt up a pair of Garrett T40B's But thinking of it, 9:1 should be low enough with forced induction. The 383 I believe spun a main bearing, no noise just really hard to turn over. Engine has less than 4K miles on it. I do believe i caused this also. (will post details after I tear into the bottom end.) Ok since those are forged. (I thought so just wanted a second opinion) and I wont need to "lower" the CR using aluminum heads (aluminum drop CR approx 1 point right?) I am going to turn up the heat on this rebuild. Thanks again

[bbeckwith]

found this link for you regarding your 2315 trw pistons. scroll down to the 383 pistons.

http://www.flatlanderracing.com/trwchry.html

good luck

[rb77413]

Cool Thanks. At 8.9:1 (.030) over, forced induction is looking mighty feasible. . ehostler, doyou have any experience with ATI? Again thanks guys. I do have pics, but not digital, gotta go get them developed first.

[ehostler]

I have no experience with them, yet. After some research, I have found that they make a superior product and stand behind it. The ATI website is www.procharger.com and you can buy the setups from www.thesuperchargerstore.com