Looking to see either hp #s or et. On stock crank and rods. I start, my car made 560 rwhp on stock crank and stock rods with arp bolts. Can this stuff live at 600 + rwhp for a while or is it a bomb ?
IMO I think your playing with fire. Keep in mind these are 30 year old parts..... Some might get away with 600hp and another get away with 450hp. There is no way of knowing how fatigued your rotating assembly is. It does sound good to say I ran xxx with stock stuff until it gives up the ghost and destroys everything inside the motor. For piece of mind, these forged rotating assemblies now a days are pretty affordable, especially if you hurt your current build and have to start from scratch. Another option you have is to sell your current shortblock while its still running well and buy a forged shortblock in the for sale section for half the cost to do it yourself. They are always floating around.
I am going to agree with ttypewhite on this one....While I am not one to preach the virtues of all the safety equipment and what not that most of us should be running, myself included here, These days there is really no reason not to at least have a good rotating assembly.
When you can make 10.50 power all it takes is to rattle it good one time and some damage is going to happen..even if you don't see it immediately. The stock pistons hold up very well failing is usually cumulative stress over a period of time, then a good whack and she opens up.
Have not seen a lot in the way of rod failures but the stock crank is another thing. The stock block can take an amazing amount of power provided you have one that has not seen any hard detonation let alone repeated hits with the jackhammer.......The billet mains are nice but I cracked a block with the stock caps so they do not mean as much as some would think. How many sets of head gaskets has this block crank rods and pistons eaten is the question I would want an answer too If i was looking to make big power with a stock set up.
With that said I would be looking to build a good rotator assembly and a girdle if looking to go much faster than 10.90's on a regular basis, If you know for fact the engine had an easy life I could push that a bit.
You are going to spend the money one day anyways so why push it? Just to say you did maybe?
And I also have firsthand experience with what happens when pushing stock block junk too far, we were really pushing things further than we knew we should in my sons 5.0 mustang, it was making 520ish rwhp and it let go right after the 3-4 gear change at the track, The bad part was the way it blew it locked the clutch together so picture driving over your own oil and coolant with the rear wheels locked up at 90..........only by some dumbass luck and a little driving skill he did not lose the car or get hurt. We knew better but...... anyway the car stopped 3 inches from the wall when all was said and done.
Sometimes you should minimize the risks, Just something to think about.
