Yes it is not sure who recomended it but I wouldn't take their advice

 

Dusting off an old post.

With the extra compressed thickness over a stock LS1 gasket, did anyone using these have to go to a longer pushrod?

 

I just ordered a set of LS9 head gaskets from SDPC. They don't have them listed on their website, but I called and asked for them specifically and they added it to my order.

From what I have read (will confirm soon) is that it has a 4.100" bore diameter and is a 7 layer head gasket.

 

They are the same thickness, it just uses thinner layers to end up at the same. I believe it is .053"
I have used these on a few F.I. builds. and they are a cheap alternative to o-ringing or 6 bolt, for cars with GM heads and less then 750 hp. Beyond that, a Virginia Speed double o-ring and aftermarket heads are what I recommend.

 

Anyone have a reason why I shouldnt run this on a 3.905 bore? I already need to use 4.000 gaskets for the 317.

 

From what I've read, they will work fine for any bore under 4.100".

 

I use these on a 5.7 block with 243 heads with no problems

 

Mine Just Showed Up Today! Ready To See What I can throw at them!! My Bore is Std. 6.0L - 4.0" I was told by several places they will work great!

 

Mine Just Showed Up Today! My Bore is Std. 6.0L - 4.000", I am ready to see how much I can throw at them!

 

Do you really have your remote mounted turbo's in the bed? How does the intercooler get proper airflow?

 

Son, that aint no photoshop work there! Lol! They are in the bed and they make 18psi at the snap of the throttle! Just ask the little 5.3 that couldnt handle it!! The intercooler was for looks mostly! But after a hard 0-100mph pull the pipe is 20 degrees cooler at the outlet than the inlet with an infered temp gun, and my IAT Stayed Low!

 

I am running the LS9 gaskets on my 317 headed 5.3 with great results so far! The price is right, and they work great! It was pushing water last year with the stock head bolts and graphite head gaskets. ARP studs and LS9s = fixed

 

Pickup trucks form a vortex right where you have the IC. Probably works better there than up in the grill.
http://www.youtube.com/watch?v=VP-AG...eature=related

 

i will also run these on a 4.8/5.3 3.78 bore block
how much psi are u pumping thru your 5.3? what size turbo?

 

About 14 psi thru a B/W S472