Mine was bored +.030", but otherwise completely stock. The motor produced roughly 450 HP NA, and I also hit it with a 150 shot for almost 4 years, and went through probably 100+ bottle refills.
One day I went out to check the oil. I pulled the dipstick out, and heard the lower dipstick tube fall into the pan. Of course the dipstick couldn't be used after that because it would hit the crank. I pulled the motor and found my windage tray broke out three of the four mounting holes completely. The lower dipstick tube was broken off the bracket, and the bracket was broken at the main cap where it mounts. When I went to clean the pan, I found a dowel pin. I looked at the mains, and sure enough, #3 dowel was missing. I wondered at the time why the dowel pin would fall into the pan. I inspected it closely and found a crack about 1" starting at the dowel pin hole. I reinserted the dowel, slapped the motor together, and reinstalled it in the car.
That was almost 2 years before that pic was taken when I finally removed the engine due to lower end noises (bad bearings). For those two years, I continued to beat the crap out of the motor with the cracked block, nitrous and all (600 HP) and it never completely died before I pulled it.
I definitely wouldn't recommend a 500557 block for anything over 400 HP.
Z Code, Two wrongs don't make a right. I already did the math for you. A 400 +.060" is not even a 412, although you can call it that if you round off. What it definitily is NOT is a 413! Just go ahead and finish that 417, 409, or 314! Which one do you prefer? That seems to be how you decide what to call it, personal preference. LOL
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01-09-2007, 08:31 AM
Hybrid Mode
