Zturd

iTrader: (12)

I'm putting together a 408ci motor and most likely going to use some nitrous on it. The bore size is 4.040. I want a .40 thick gasket. Several people are saying just use MLS gaskets but I dont see where to get them and the proper sizing? Some said to get the 4.130 size will be fine but not seeing them for my 6.0L iron block at the thickness i need. So any help of what gasket and where to get it and if you know pricing all the better.
The piston is in the hole .006, milling the 70cc head down to 66cc's and a .40 gasket with flattop pistons -2cc, should achieve 11.8:1 compression.
I may use nitrous down the road up to a 150shot tops.

__________________
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Beau@SDPC

iTrader: (14)

We have them available in a 4.085 bore in .040 thick or can get them in a fairly tight 4.060 bore .040 thick. These are cometic. Price is 145.90 + shipping for the set!

Thanks

1QuickT-A

iTrader: (12)

You can use the cometics which are damn good gaskets (what I use) or you can use the l92 gaskets and 6.0L gaskets that are cheaper. Just depends on you and what you want to spend.

Zturd

iTrader: (12)

John@Scoggin what size is the L92 gaskets? Do you have those? I'd like to go with purchasing from you since you replied if you could clarify this for me.

NemeSS

iTrader: (127)

l92 are around 4.1 bore
.053 compressed iirc, not sure about ls9

Zturd

iTrader: (12)

Well crap that answers that I'll have to contact John@Scoggin for the cometics he mentions then. Thanks for the replies. Keep'm coming just incase someone knows of something good,bad or ugly about certain gaskets. Thanks again

Bruce

Nitroused383

iTrader: (10)

Here is a good chart.

Beau@SDPC

iTrader: (14)

FYI, we have cometic gaskets available in a wide array of bore sizes and thickness NOT shown on the cometic site.

All GM gaskets are .051 thickness per their spec. the L92 is right at 4.100. The others are listed, but like i said, we can get alot more than what is on that sheet.

Thanks
John