3.905 on ls1 block?

Reply Subscribe

Thread Tools

Search this Thread

Apr 8, 2012 | 11:13 PM

christiandoy

Thread Starter

On The Tree

iTrader: (1)

Joined: Apr 2012

Posts: 102

Likes: 0

From: Brampton, ON

3.905 on ls1 block?

Hey everyone is it safe to bore out my block to fit 3.905 wiseco pistons?
anyone done this before?
Please let me know asap

Apr 9, 2012 | 02:06 AM

bww3588

12 Second Club

iTrader: (49)

Joined: Sep 2005

Posts: 8,139

Likes: 10

From: Chillicothe/Lima, Ohio

Yes. That is about safe max limit on ls1's.

Apr 9, 2012 | 05:22 AM

mark21742

TECH Addict

Joined: Sep 2009

Posts: 2,481

Likes: 5

From: PA/MD

Yup you can do it, but I'd still get the block sonic tested since that is max bore

Apr 9, 2012 | 07:06 AM

bww3588

12 Second Club

iTrader: (49)

Joined: Sep 2005

Posts: 8,139

Likes: 10

From: Chillicothe/Lima, Ohio

^^^this. If you haven't already bought pistons, I would go with a 3.903 piston to leave some meat in the cylinders.

Apr 9, 2012 | 07:25 AM

christiandoy

Thread Starter

On The Tree

iTrader: (1)

Joined: Apr 2012

Posts: 102

Likes: 0

From: Brampton, ON

There's a guy on here selling me the pistons complete with the rotating assembly so I kind of have no choice.
Thanks guys

Apr 9, 2012 | 08:03 AM

mark21742

TECH Addict

Joined: Sep 2009

Posts: 2,481

Likes: 5

From: PA/MD

Now if you get the assembly and can find a cheap iron 5.3 block to bore out end drop it in, then you could still take the 5.3 block farther later.

Plus if you stick with your ls1 block make sure the shop that bores your cylinders out has a torque plate.