LS1TECH - Camaro and Firebird Forum Discussion
LS1-LS2-LS3-LS6-LS7 PERFORMANCE
Generation IV Internal Engine
Is it safe to go .030 bore on a LS2?

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Is it safe to go .030 bore on a LS2?

Reply Subscribe

Search this Thread

Old

Nov 17, 2006 | 12:14 PM

#1

Thread Starter

TECH Regular

iTrader: (10)

Joined: Jan 2004

Posts: 440

Likes: 0

From: Green Bay, WI

Default

Is it safe to go .030 bore on a LS2?

Yes or no, I see that the recomended max bore appears to be .020 on some websites. If I do go .030 and something were to happen with the block and it would need to be honed, would I be screwed and be forced to either buy a new block or a new set of sleeves? What cubic inch would an LS2 be with a 4.1'' stroke and .020 bore be?

Old

Nov 17, 2006 | 05:15 PM

#2

TECH Veteran

iTrader: (21)

Joined: Apr 2003

Posts: 4,049

Likes: 3

From: Shreveport, LA

Default

You wouldn't be the first person to go 4.030" on a LS2 block. There are a few floating around. However, if you did need a rebuild, I'd say you'd be SOL on a bore/hone for reringing. The 4.020"/4.100" combo would net you 416 cubes. I highly doubt 2 cubes will make that much diffrence, and you'll have a extra .010" if you ever need it.

Old

Nov 17, 2006 | 05:58 PM

#3

LS1TECH & Trucks Sponsor

iTrader: (4)

Joined: Feb 2006

Posts: 216

Likes: 0

From: Lubbock, TX

Default

I know there are people going .030" over but GM recommend a max of .020"

Old

Nov 17, 2006 | 09:36 PM

#4

FormerVendor

iTrader: (7)

Joined: Jan 2002

Posts: 1,940

Likes: 0

From: Toronto, Canada

Default

I am never a fan of taking a brand new block out to its limits for the reasons Beast96z mentioned.

Old

Nov 18, 2006 | 03:12 AM

#5

BIG BAD BLACKSS

TECH Resident

iTrader: (4)

Joined: Sep 2005

Posts: 982

Likes: 1

From: Chicago

Default

What about a 6.0 iron block. I know people are taking them to .030 to make 370s. Is that thier max?

Old

Nov 18, 2006 | 08:29 AM

#6

FormerVendor

iTrader: (7)

Joined: Jan 2002

Posts: 1,940

Likes: 0

From: Toronto, Canada

Default

I have built many 4.060 truck blocks with no problems

Old

Nov 18, 2006 | 03:46 PM

#7

00 black ram air

On The Tree

iTrader: (15)

Joined: Mar 2004

Posts: 166

Likes: 0

Default

If you do it I have a set of pistons and rings for you depending on what your doing with it

https://ls1tech.com/forums/lsx-parts-sale/603399-diamond-pistons-diamond-pro-select-rings.html

Trending Topics

FI Tech engine management system.......anyone use it?

37

565
Starting issues

20

539
60-130 Dragy runs?

33

777
Stuffed my 12.5â€ rims and 335 tires on the back of my WS6.

9

239
Epic SRK B/S thread of 2019

12.7k

560.6k

Old

Nov 18, 2006 | 09:58 PM

#8

TECH Addict

iTrader: (69)

Joined: Oct 2002

Posts: 2,755

Likes: 2

From: Baxter,KY.

Default

I have a .030"over LS2 and runs great,with 4.100"stroke ,6.125 rods = 418cid.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Reply Subscribe

030, 2002, 30, 4020, block, bore, cylinder, engine, go, ls2, rings, safe, sleeve, stock

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 05:55 PM.