Mark99GT

Yeah, keep what you got, why spend money you don't need to. I wouldnt worry about any block at that power level.

andy98gt

Awesome thanks alot and my other idea with what i have is porting and polishing and a valve job on my heads they are PI heads with only 25k on them. Is that a good idea to?

Mark99GT

Yeah, thats a good idea if you have the money (cams aretoo). But get the porting done from a reputable shop. Remeber those heads are heavy, it might be cheaper in the long run to just buy new, ported heads(sell your old), you can get new, fully assembled ready-to-rock (minus cams)patriot stage II heads for 1250. Instead of paying labor and 2x shipping charges, keep that in mind. Also, if you're getting head work, look into a stroker kit for a couple hundred more. You might want to spend the extra cash on it, but only if youre definitely getting the head work. Someone here has a stroker, can't remember his name though...

oxfordgt

Rebuild. I had it bored .020 over line honed and assembeled for $600 and bought the parts for $1500.

2002GTAUTOVERT

i have seen 2 cracked blocks. but they werent from having too much power in the motor

lizzyfan

Upwards of 1000hp

NoRdO

The GT block?, I thought the teksid block was the one that could handel a ton of power?

2002GTAUTOVERT

they can both handle alot of power.. the teksid more.. i dunno about 1,000 for the stock 4.6 id say 6-700hp 1000hp for the teksid. but if youre at that amount of power, youre probably already going to have a built block or need one.

Mark99GT

They both do. The teksid is more fly cause it weighs less, wont rust out, and can be sleeved for a big bore.