Quote:
Originally Posted by gearheadgarage
Nothing like throwing away good parts! Actually, it could be worse- I blew the top of a piston on cyl #5, and wasted the cylinder/sleeve on both #3 & #5. Resulted in a few cracks in the block too!
Looks like the heads survived virtually unscathed. Ordering up an iron 6.0 block, boring it and running a Callies crank & rods kit likely with Wiseco pistons. This time we'll use a dished,, forged piston in order to accomodate the SuperCharger. I'm amazed how nice all of the bearings and the rest of the bottom end looked- might've lasted forever w/o boost. Guess the block wasn't good to 600 hp+.  |
Ouch... pretty safe to say now it was probably detonation. Were any of the other top rings pinched?
Probably leaned out and rattled on your high speed / high load blast. Make sure you don't have a fuel system deficiency before you toast a new engine!
Look on the bright side, at least parts didn't vacate the confines of the block and dump oil all over the road and under your back tires at 140-something.
Jason, one thing you might want to consider is to give Kurt Urban a call. He can mod the blocks for piston oil squirters which helps out with piston temps and thus detonation resistance-- a good thing especially on pump gas forced induction. Kurt did all the machine work & stuff on my LS2 including adding the piston squirters. I went the extra mile and did thermal coating on the pistons in addition to the squirters.