badazz99ss

iTrader: (16)

Hey wussup guys im about ready to start my turbo build. I was tossing around the stock 5.3 motor or using my forged 347 that needs rebuilt. The block has 1 headbolt hole that is helicoiled. Will this be safe to boost or should I grab another 5.7 block to put the rotating assembly in? Will be shooting for around 900rwhp

DEFYANT

LS1/6 block is not thay great for boost to begin with. Slam that Rotating Assemble in the LM7 block.

Inspector12

iTrader: (29)

Nothing wrong with a helicoiled head bolt. Usually they are stronger than the threaded block itself.

LT1RAY

iTrader: (21)

Time Sert makes a nice head bolt repair kit for LS blocks if you wanted to redo it.

badazz99ss

iTrader: (16)

Hmm I didnt know that. just didnt want to lift a head.

Ferocity02

iTrader: (60)

It will probably be fine, but I would use studs to reduce the stress on the helicoil.

badazz99ss

iTrader: (16)

I just might have to look into that. Thanks man

Blown06

iTrader: (32)

Why would you wanna redo it?

Like said above, helicoil can be stronger than a regular thread anyway.

LilJayV10

iTrader: (39)

itsslow98

iTrader: (18)

I agree with you lol, but i also believe the aluminum LS1 block isnt the best choice for 1,000+ crank hp like the OP is aiming for.

badazz99ss

iTrader: (16)

Tjanks guys. Well now u got me thinking with the aluminum block at 1, 000 hp mark. Hmm I think im going to let er eat and see what it does. Build thread coming soon. Thanks fellas

Inspector12

iTrader: (29)

I've never used anything but aluminum blocks and been making over 1K at the wheels for a LONG time on all different size motors. And next they will be telling you that you can't do it with out a 6 bolt block etc... But Ive never owned one of those either. GL! Pick your parts well and you will be fine.

itsslow98

iTrader: (18)

We all have our opinions and like I said the ls1 block will work, but is it really the best option when your gonna put that klind of money and power into it? Iron blocks are a lot more stable then aluminum its proven.

Dont get me wrong I just built an aluminum block for my cobra instead of going with another stock iron block like it came with. I took the 70lbs of weight savings over the stability of the iron block because i wont be pushing it quite that hard.

badazz99ss

iTrader: (16)

I would put the rotating assembly in the iron 5.3 but being it would have to be bored out to a 347 what would be the point being the walls wouldnt be thick any longer.

DEFYANT

Shove your facepalm up your ***. For what the OP is aiming for the LS1/6 block would be an issue.

I was reading over Fireballs thread yesterday, and one of the post was that Shawn from VA. Speed saying that he stripped out a head bolt thread in the RHS block, and that he was going to Helicoil it. Apparently it worked LOL.

Krom

why not open up all the holes for 1/2" studs, and kill 2 birds with one stone?