Sorry for "jacking" the forum but I have a similar question for anyone who knows. I want to rebuild my 2.4 and I'm thinking a 30 over bore should suffice. I have a rebuilt N42 head that has also been resurfaced for clearance (least amount possible). I'll be using my 470/280 stage 2 cam and the triple 40DCOE's and ceramic coated header and Mallory Unilite w/ MSD 6A and promaster coil, So my questions are these......... Is it cheaper to go with a 20, 30, 40 or 50 over bore? Flat tops are probably the better style for a standard rebuild (not looking for serious power or CR) so should I go with Forged or Cast pistons? Milled? Are they comparitble with my existing rods or should I buy new? Also, which-ever is better, should I ballance them beyond stock specs. I'll obviously ballance the crank and likely have everything polished. Is "Knife edging" the crank even possible or needed? I will ballance and lighten the flywheel. but I don't want it so light that it effects daily drivability. 10lbs is too light, standard is 24lbs? do you think 16lbs is a good round number? I hear alot about NOT going with the Centerforce 1 or 2, what is the best clutch pack to go with for the build I have in mind. ANy info is greatly appreciated, I'm not looking for all out HP, the car will still be a daily driver, Fuel milage is still a consideration, and I'd like it to last as long as the original did. A Conservative build is what I have in mind, extra HP is obviously in the works but Hi numbers aren't necessary. All this will be on a "Daves" Budget. (under $1000) Are used piston and new rings even an option? Sorry again for jacking the forum but I really need some basic answers. Thanks in advance, Dave.