LS1TECH - Camaro and Firebird Forum Discussion
LS1-LS2-LS3-LS6-LS7 PERFORMANCE
Generation IV Internal Engine
How much can you mill L92's before Intake alignment issues?

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

How much can you mill L92's before Intake alignment issues?

Reply Subscribe

Search this Thread

Old

Nov 23, 2012 | 12:15 PM

#1

Thread Starter

9 Second Club

iTrader: (10)

Joined: Jul 2009

Posts: 1,087

Likes: 1

Default

How much can you mill L92's before Intake alignment issues?

Just wondering

Old

Nov 23, 2012 | 12:28 PM

#2

TECH Senior Member

iTrader: (9)

Joined: Mar 2006

Posts: 8,425

Likes: 2

From: Indianapolis

Default

I wouldnt mill ls3 heads past .045 period

Old

Nov 23, 2012 | 12:44 PM

#3

Launching!

iTrader: (2)

Joined: Jun 2008

Posts: 288

Likes: 1

Default

0.045 is the answer and yes, Milling them beyond 0.045 is not recommended. Hurts the flow in the chamber. Also with such a large intake valve, it's hard to throw duration at a cam without flycutting.

Old

Nov 23, 2012 | 02:34 PM

#4

TECH Addict

iTrader: (83)

Joined: Sep 2009

Posts: 2,388

Likes: 4

From: Battle Creek Mi

Default

My heads are cut .020 and the block is .025

ls7 gasket both the vic jr and mast intake fit fine

Tim

Old

Nov 23, 2012 | 08:46 PM

#5

TECH Enthusiast

Joined: Nov 2006

Posts: 743

Likes: 4

From: melbourne (Aus)

Default

100thou, no porting, stock manifold (L76 manifold) still fit and lined up. made big hp with factory ls2 cam and e85. 11.3 in 3700 lb car at 122mph. fly-cut pistons, but actually could get away with it.

Old

Nov 28, 2012 | 07:38 PM

#6

Sales4@Texas-Speed

LS1TECH & Trucks Sponsor

iTrader: (4)

Joined: Jan 2007

Posts: 1,768

Likes: 9

Default

If the short block is stock then piston to valve clearance would be more of a worry then the intake lining up. Keep in mind excessive milling can hurt flow.

Old

Nov 29, 2012 | 12:38 PM

#7

blackonblacksls

TECH Enthusiast

iTrader: (1)

Joined: Sep 2007

Posts: 508

Likes: 1

Default

Angle milling? I took 20cc off my chambers and still line up with stock style intakes.

Trending Topics

Help Identifying this engine option on 2002 Z28

20

468
1996 Jeep XJ LM7 Swap

31

936
Oil getting into cylinders

8

263
Monster S Twin - Pilot Bearing or an Orlite Pilot Bushing

5

149
No brake immediately after psi boost. Not check valve or booster

6

218

Old

Nov 29, 2012 | 05:49 PM

#8

TECH Junkie

iTrader: (2)

Joined: Mar 2005

Posts: 3,416

Likes: 2

From: Northern VA

Default

FWIW: Mine were milled .030 originally and Richard did a couple thou cleanup pass when he ran the Stage 3 program through them. The block was also cleaned up a few thou when the Darton liners went in.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

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

Reply Subscribe

53, alignment, angle, heads, intake, l92, ligning, ls2, ls3, mast, mill, milling

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 02:32 AM.