well to put it into perspective... i bought my shortblock for 2600. re-using the PI heads but having them gone through, new cams, valvesprings, gaskets, etc etc i'm over 6k into my new motor.. thats reusing everything from the intake, valve covers, timing cover, blah blah blah.. you are going to need 4v heads, cams, chains, tensioners, timing cover, gaskets, intake, brackets, coils, headers, wiring harness, tune, throttle cables, throttle body, power adder... dude the list keeps going and going. and thats not counting the transmission. to do a 4v swap, the easiest and cheapest way to do it is to buy a complete motor out of an 04 cobra that already has everything complete with the blower and transmission.. 6k is a steal for what you're getting out of it.