collin23

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

Bryan @ Speed Inc.

iTrader: (19)

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.

collin23

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

GMmexican

iTrader: (7)

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

ls1290

iTrader: (20)

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