Head gasket
Head gasket I am doing H/C and wanted to know what head gasket you guys recommend?
It's a stock 346 LS1. I will be doing either PRC 5.3 2.5's or AFR 205's and an MS4.
I see alot of people using Cometic .040's. Are these good and where would I purchase them? Or would just the stock GM gaskets work well?
Thanks!
It's a stock 346 LS1. I will be doing either PRC 5.3 2.5's or AFR 205's and an MS4.
I see alot of people using Cometic .040's. Are these good and where would I purchase them? Or would just the stock GM gaskets work well?
Thanks!
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Joined: Jan 2008
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From: Michigan
I went patriot stage 2's and was told to go 4100ths gasket to bump up the compression in theory now other then that the GM gasket is a verry good gasket and can be reused I have a set of GM ls6/ls1 head gaskets right here if you want them they will work on your car thier still in the package they were just a little thicker then what gunner advised. PM me if you want them I just havent sent them back to thunder yet.
TECH Fanatic
Joined: Feb 2004
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From: Lexington, KY
I am running the .040 cometics and I went with this thickness specifically to get my compression and quench where I wanted it. It's best (imo) to go with a thickness that is the best match for your combo.
I went patriot stage 2's and was told to go 4100ths gasket to bump up the compression in theory now other then that the GM gasket is a verry good gasket and can be reused I have a set of GM ls6/ls1 head gaskets right here if you want them they will work on your car thier still in the package they were just a little thicker then what gunner advised. PM me if you want them I just havent sent them back to thunder yet.
What's the thickness?
Thanks
11 Second Club
Joined: Jun 2005
Posts: 1,537
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From: Was New Orleans, but swam to Baton Rouge
Well it depends on the power you are making and the cylinder pressures. The MLS gaskets tend to hold up a lot better to intense pressure versus a graphite gasket. Then you have the whole gasket thickness to help you get the CR you desire.
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And I plan on making in the neighborhood of 450rwhp N/A and around 550+ on the spray... what would you recommend
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The stock MLS are .053 and will hold up to the power levels you describe. As Sigforty stated, they are a good gasket for the money and are readily available.
11 Second Club
Joined: Jun 2005
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From: Was New Orleans, but swam to Baton Rouge
Just an FYI, the MS4 will not clear with the PRC Stage 2.5 5.3L heads without flycutting the pistons. You would have plenty of clearance with the MS3 however. Or the stage 1 heads would clear as well.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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POWERBOND - ASP - AND MORE!
Magic words.......Usuable Power!!!!!!!
Just an FYI, the MS4 will not clear with the PRC Stage 2.5 5.3L heads without flycutting the pistons. You would have plenty of clearance with the MS3 however. Or the stage 1 heads would clear as well.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
Just an FYI, the MS4 will not clear with the PRC Stage 2.5 5.3L heads without flycutting the pistons. You would have plenty of clearance with the MS3 however. Or the stage 1 heads would clear as well.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
We've got numerous options for you that will not only have PtoV clearance, but will make gobs of usable power too! Give us a call or shoot me a PM if I can help!
*EDIT* We also offer the GM graphite and MLS gaskets as well as a full line of Cometic MLS head gaskets. We'll help you select a gasket with the correct thickness to optimize the quench on the motor which helps ward off detonation issues.
No sir, the MLS gaskets work just fine!
__________________
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!
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!
OLD THREAD. We've got all the gaskets in stock. Call us if we can get you a set sent out 
__________________
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!
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!
