AFR225 head gasket question..... - LS1TECH

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AFR225 head gasket question.....

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Old 06-07-2007, 03:01 PM   #1
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Default AFR225 head gasket question.....

I have a 364ci and am going to switch to the 225AFRs with the 72cc chamber. Tony at AFR said to run a gasket with at least a 4.125" bore to properly match the heads.

What gaskets are you guys running with the 225s and similar cylinder bore as mine? Thanks in advance guys.
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Old 06-07-2007, 03:05 PM   #2
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I ran GM MLS gaskets for the 6L blocks with 4.0 bore, I had a 346 motor. It worked.
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Old 06-07-2007, 03:16 PM   #3
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I ran the GM LS7 gaskets,on my 402/6.0L with the AFR 225's.
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Old 06-07-2007, 03:42 PM   #4
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I ordered the new Felpro MLS.
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Old 06-07-2007, 03:45 PM   #5
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Quote:
Originally Posted by JMBLOWNWS6
I ordered the new Felpro MLS.
Are those the ones that are supposed to have some fancy ring in them that seal under all conditions or something???? Anyone know what I'm talking about????? I've just heard rumors. I've also heard rumors about some gaskets that are like ~$250 a set
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Old 06-07-2007, 03:58 PM   #6
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Quote:
Originally Posted by ninetres
Are those the ones that are supposed to have some fancy ring in them that seal under all conditions or something???? Anyone know what I'm talking about????? I've just heard rumors. I've also heard rumors about some gaskets that are like ~$250 a set
No those are the Cometics. And W2W pushed them to about 23 psi and they pushed out. They also require silicone to seal. I was going to order these but I spent the extra money on L19 head studs.

http://www.cometic.com/phuzion.aspx
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Old 06-07-2007, 04:01 PM   #7
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I went with the big bore cometics on my build too.
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Old 06-07-2007, 04:25 PM   #8
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.040 Cometics with 4.160 bore, got them from AFR.
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Old 06-07-2007, 05:13 PM   #9
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Quote:
Originally Posted by JMBLOWNWS6
No those are the Cometics. And W2W pushed them to about 23 psi and they pushed out. They also require silicone to seal. I was going to order these but I spent the extra money on L19 head studs.

http://www.cometic.com/phuzion.aspx
So they don't work?

What the **** head gasket should I run, lol????????

So confused.
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Old 06-07-2007, 05:23 PM   #10
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I run GM MLS.
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Old 06-07-2007, 05:24 PM   #11
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Quote:
Originally Posted by ninetres
So they don't work?

What the **** head gasket should I run, lol????????

So confused.
Seems the LS7 gaskets are working fine (4.125). I think Tony from AFR recomended them...

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Old 06-07-2007, 05:35 PM   #12
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I went with felpro because that what Kurt reconmended!
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Old 06-07-2007, 06:53 PM   #13
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felpro release the 6 bolt gasket yet?
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Old 06-07-2007, 06:55 PM   #14
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SCE titans ICS...

AFRs are 4.080 on the chamber IIRC so you'd need at least a .020 greater gasket as those need .010 backspacing from the flamefront.
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Old 06-07-2007, 07:12 PM   #15
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SCE Titan ICS are JUNK!
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Old 06-07-2007, 09:11 PM   #16
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Large bore .040 Cometics.

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Old 06-07-2007, 10:41 PM   #17
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Default 6-bolt gasket

Quote:
Originally Posted by Tiago
felpro release the 6 bolt gasket yet?
Yes, they have. I can get the part number next Tuesday when I go back to work.
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Old 06-08-2007, 09:02 AM   #18
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Quote:
Originally Posted by speedracer5532
SCE Titan ICS are JUNK!
is this based on personal experience ?

Ive bought a set, but havent needed to use them yet.

Im on stock GM MLS at the min, have been for over a year with no problems.
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Old 06-08-2007, 01:50 PM   #19
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Quote:
Originally Posted by stevieturbo
is this based on personal experience ?

Ive bought a set, but havent needed to use them yet.

Im on stock GM MLS at the min, have been for over a year with no problems.
Yes it is based on personal experience. I have yet to see a set that didn't leak coolant.
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Old 06-08-2007, 04:24 PM   #20
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Quote:
Originally Posted by helicoil
Yes, they have. I can get the part number next Tuesday when I go back to work.

cool, let me know
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