LS1 to larger sleeve

**cccullins** · 07-16-2009, 01:08 PM

Can a LS1 block 3.90 bore be machined to except larger sleeve. I would like to get to as close to LS7 bore as I can.

**Hi-Po** · 07-16-2009, 02:03 PM

Sure it can. But why would you spend all that money on machine work when a LQ block or similar would be new... and cheaper?

**SHovV** · 07-16-2009, 02:21 PM

yeah it can. mine was bored to and stroked to 427 by MTI houston. but for the money just get an aftermarket block

**Hi-Po** · 07-16-2009, 02:51 PM

Originally Posted by SHovV

yeah it can. mine was bored to and stroked to 427 by MTI houston. but for the money just get an aftermarket block

Im dying to know what the machine work cost.

**cccullins** · 07-16-2009, 03:13 PM

What did the machine work cost u?

**cccullins** · 07-16-2009, 03:15 PM

What is a LQ block is it alum?

**Hi-Po** · 07-16-2009, 03:49 PM

Originally Posted by cccullins

What is a LQ block is it alum?

No, Iron. Its a 4" bore, and with sonic testing can be bored past .030 . The LQ series came in trucks and escalades. Your better off calling a company that specializes in this kind of thing. You need to go over some options and true plans for the car. If you plan on running a N20 at all, that might change your mind, a good engine builder will be able to tell you this.

**cccullins** · 07-16-2009, 05:01 PM

I'm not looking to go iron yet, if I did it would be a wasted of money to buy anything other then a LSX. I to trying to utilize3 what I got what machining is require other than boring shouldering and surfacing the block?

Originally Posted by Hi-Po

No, Iron. Its a 4" bore, and with sonic testing can be bored past .030 . The LQ series came in trucks and escalades. Your better off calling a company that specializes in this kind of thing. You need to go over some options and true plans for the car. If you plan on running a N20 at all, that might change your mind, a good engine builder will be able to tell you this.

**Hi-Po** · 07-16-2009, 05:08 PM

Originally Posted by cccullins

I'm not looking to go iron yet, if I did it would be a wasted of money to buy anything other then a LSX. I to trying to utilize3 what I got what machining is require other than boring shouldering and surfacing the block?

The LQ is a Ls series really. Its still in the family if thats what your wondering. Why not iron? Other then the obvious weight penality.

You can RESLEEVE your block. I see it being done at work all the time. But its in Diesels

Thats pretty much what your looking at, a complete re-sleeve. Big money. Im not a machinist so I cant not run down the process, but I do know its alot of work at xx.xx dollars per hour.

**SHovV** · 07-16-2009, 06:58 PM

yeah, to get big inches out of a ls1/6 it a total bore out and re-sleeve.

and idk what it cost to have all the work done.i know it wasn't sheep. the car was built around '02 from what jason,david & josh have told me ( previous owner/employees ). im the 4th owner, i knew the 2nd & 3rd owners but haven't been able to track down the original owner...