4.190" headgasket okay with a 4.155" bore? - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV Internal Engine
Log In 
Search


Generation IV Internal Engine
2005-2014 LS2 | LS3 | LS7 | L92 | LS9
Sponsored by
ERL Performance


4.190" headgasket okay with a 4.155" bore?

Reply
 
Thread Tools Search this Thread
Old 05-29-2012, 07:05 PM   #1
10 Second Club
 
Snyper's Avatar
 
Trader Rating: 27
Join Date: Nov 2006
Location: Connecticut
Posts: 1,906
Send a message via AIM to Snyper
Default 4.190" headgasket okay with a 4.155" bore?

I am about to put my engine back together once I get the bearings and gaskets. My initial setup had 4.165" head gaskets on my 4.155" bore block (434ci) and I was told that ill be receiving 4.190" head gaskets this time around. Will I run into any issues running head gaskets this size? The engine will see some nitrous.(150-250 shot)
__________________
2004 Nissan 350z LS2/PT88--10.84@138 9psi/pump
434ci NA/Nitrous 548whp NA so far...
Snyper is offline   Reply With Quote
Old 05-29-2012, 07:19 PM   #2
LS1Tech Sponsor
 
AES Racing's Avatar
 
Trader Rating: 6
Join Date: Feb 2010
Location: Elk Grove Village IL
Posts: 900
Default

4.190" gasket bore will be fine.
__________________
AES Racing Engines
email: aesracing@sbcglobal.net
phone: 847-956-1244
Tour our shop (click here)
AES Racing is online now   Reply With Quote
Old 06-09-2012, 08:19 AM   #3
10 Second Club
 
LT1Formula007's Avatar
 
Trader Rating: 66
Join Date: Mar 2007
Location: Indianapolis, IN
Posts: 1,378
Send a message via AIM to LT1Formula007
Default

Correct! They will be fine!
__________________
PROJECT "UNLEASHED" LSx > *

RIP DAD.... I LOVE YOU!!!
99 TA - ERL "DRY SLEEVE" LS3 447 CI STROKER/RPM Level 6 4L60E/MWC Fab 9 & 8.50 Cage d:-)~
99 TA - LS1 l MS4 l FAST 92/N.W. 92 l Hooker LT's & TSP TD's l RPM LVL 5 l VIG 3200 Converter l 3.42's l MWC SUSPENSION l K&N FIPK l ETC.
LT1Formula007 is offline   Reply With Quote
Old 06-11-2012, 09:52 AM   #4
LS1Tech Platinum Sponsor
 
Sales2@Texas-speed's Avatar
 
Trader Rating: 5
Join Date: Jan 2008
Location: Texas!
Posts: 4,919
Default

Yea, no problem. Keep in mind most OEM GM gaskets run a good bit larger than the bore size they are being run on.
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Sales2@Texas-speed is offline   Reply With Quote
Old 06-11-2012, 10:32 PM   #5
TECH Resident
 
CAMSTER's Avatar
 
Trader Rating: 10
Join Date: Mar 2011
Location: Miami gardens FL 33055
Posts: 851
Default Fine?

Yes is fine ...
__________________
640 RWHP N/A through an auto
CAMSTER is online now   Reply With Quote
Old 06-12-2012, 03:27 PM   #6
On The Tree
 
Pumba's Avatar
 
Trader Rating: 0
Join Date: Dec 2004
Location: Northville, Michigan
Posts: 123
Default

Quote:
Originally Posted by Snyper View Post
I am about to put my engine back together once I get the bearings and gaskets. My initial setup had 4.165" head gaskets on my 4.155" bore block (434ci) and I was told that ill be receiving 4.190" head gaskets this time around. Will I run into any issues running head gaskets this size? The engine will see some nitrous.(150-250 shot)

Ask your engine builder what the compressed thickness of your new gasket is compared to your old gasket. This can effect your compression ratio.

Also, where is your piston deck when the engine is cold? Is it above the block, equal to the block, or below the block?

-
Pumba is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cometic LS7 Big bore Head gaskets NIB Rat Raceway Parts Classifieds 0 02-10-2015 02:02 PM
441ci 4.190" bore/4" stroke: what safe RPM with solid roller? gnx7 Generation IV Internal Engine 82 09-17-2014 05:50 PM
Cometic 4.190 .051 head gaskets NIB Gray86hatch Parts Classifieds 8 06-12-2014 04:34 AM
HELP! Need cometic 4.155" bore wet sleeve gasket! DAPSUPRSLO Generation III Internal Engine 2 01-10-2007 03:28 PM
Is a 4.125" Stroke Crank to BIG? adams2003 Generation IV Internal Engine 16 02-14-2006 10:48 PM


Tags
350, 4155, 4165, block, bore, bored, difficult, engine, forced, gasket, head, induction, ls, ls1tech, pontiac, size


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 12:59 PM.


Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details