Generation IV Internal Engine - iron block vs aluminum ls2

ok so i am wanting to build a 600hp forced induction ls2. i was going to buy a motor from a wrecked car (im swaping it into a c10). i have heard that the iron blocks are stonger than the aluminum block, but what are the iron block internals like. will stock crank go 600 hp? i guess what are the major differences in the two motors and what would i have to do to the iron block to make it boost worthy?

im asking this because i can get iron block 6.0's cheaper

are you buying an entire longblock, or just a shortblock?

internals are similar between the two. stock cranks have seen well over 600hp without issue.

stock shortblocks will be decently reliable between 500-550rwhp - i wouldn't push it too much further than that and expect it to last.

i was planning on buying the whole long block and using everything except get forged pistons and rods.

how do the heads and intake and all that stuff compare

I plan on going with an aluminum ls2 also with spray, as long as the motor is built properly and you have all the supporting mods....im sure u can get close to 600rwhp

i was planning on buying the whole long block and using everything except get forged pistons and rods.

how do the heads and intake and all that stuff compare

With different rods and pistons, you will most likely have to rebalance the crank. A built shortlbock will most likely be cheaper than disassembling the longblock, rebalancing the rotating assembly, and assembling the shortblock in both time and money.

Keith