Originally posted by warmonger:
Originally posted by PuckPuck:
Ok I just came back from my brother in-law's mold making shop

My piston has a dome center, so all measurements are not from the dome but from the top of the outer rim... we layed the piston upside down on 2 machined blocks on a flat marble work surface... pulled out some funky guage that sits flat on the table and zeroed it on top of one of the machined blocks... because he's a mold maker he measured everything 3 times to ensure accuracy...

top of first ring .158
top of second ring .368
top of oil ring .606
top of piston pin hole .769
piston pin diameter .828 (using telescoping guage)

do the math and i'm sure you can figure it all out



"Mold"?? Does he make Cheese, or penicillin perhaps?
Lol I'm just having fun.





I'm French Canadian... therefore I am allowed to mispell words, and have my own flavor of funky english grammar oh and i'm sure you figured out he's a MOULD maker

Now onto serious issues. I know how many of you praise the extra 1.2 points of compression, however now if money is tight and you can't afford a new set of pistons for your 99 block being converted to a 3L, you may want to think about running a lower compression by opening up the combustion chamber (only slightly more $$ in machine work). I have always felt that 11.2:1 is a decent jump on stock internals for an engine designed to run 10:1 or lower. Sure you'll lose a little HP for running the lower compression, but at least you won't have a 150lbs paperweight.

I'm still interested in knowing if we can say that all blown pistons were in the front bank... then the next question is WHY? Maybe the water pump has something to do with it, now i'm not sure but, that is the only big difference from front to rear.

2000 Cougar V6 MTX 2001 3.0L Swap w/ PnP Heads - It ran, it boomed, it RUNS AGAIN Nearly all suspension mods Big ass stereo ...and more... See Her Here