You already have me worried. I am not trying to sell you a thing here either. But, I have a very good idea, where you are thinking about getting this short block and heads from. And, all I can say is, cheap is cheap. Under $4000 for a 582 short block, and under $2k for the heads. I know where it is, and all I can say is, keep your fingers crossed, and I will wish you luck. Don't believe me, go to the scammers section, on this sight and take a peak.
You will get a finished hone block, washed and stuffed with cam bearings, and called race prepped. You will get a generic balance job, that was done to a "universal bob weight". Meaning, they weighed a set of rods, similiar pistons, rings and bearings, at some time in the past, and, thats the bob weight they use for EVERY one they do like that. How can you precision balance a rotating assembly, when none of the parts have ever been un-boxed? Every piston still wrapped up, bearings never opened, rings never opened, every rod still in its un opened platic bag, etc. Then, some 20 year old kid, who gets a bonus for getting them together faster hammers the thing together, not one clearance is checked or verified, and presto, you have a "Race engine". The heads, are pulled out of the box, dusted off, the valves stuffed in, a spring shim put under the springs, and wing bang boom, your "race prepped" heads are ready to bolt on!! Some work, many don't. I know of a few guys who have fallen victim to the cheapest race engine shop in the world, and they are amongst the slowest guys at the track. One guy even refers to his 565 he got there, that was supposedely over 940hp, as the worlds slowest 565. In a 2800 lbs, trick 65 chevy 2, that was done by a local chassis shop that build killer cars, that went in the 7's when they had, it now barely goes 9.30's, on the bottle!!. It should run 8.60-70's or faster, on the motor, with that power.
As apposed to how I do it, and how it should be done. Block gets deburred, I re-tq the mains, and check main housing bore sizes, many times, I add arp studs, and re-dust the mains on the line hone, depending on application. The block gets BHJ block trued and re-cut decks for a smooth Ra finish, to use cometic or other mls gaskets. And set deck heights. Dart does a good job, and they are within .005, but, I want them at .0001. Thats 1 tenth. The cylinders are usualy bored and then tq plate honed with a plataeu type honing procedure, that Dart recomends. We do it exactly like they say to. Multiple grit stones, to get the Ra and Rz values correct. Then whatever rotating parts are used, every compnenet is weighed, and adjusted as necessary, then, the bob weight is done up, and the crank is balanced to less than .5 grams. Not even going to get into the assembly procedures, or the head prep. But, thats the correct way to do it. Obviously I charge more, and I won;t sell as many, but guess what, I don;t deal with tons of headaches from un-happy customers, and I don;t have numerous court litigations pending.
Frank
Advanced Performance
www.get-ap.com