Forced Induction - AFR225 head gasket question.....




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ninetres
06-07-2007, 03:01 PM
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.


Tiago
06-07-2007, 03:05 PM
I ran GM MLS gaskets for the 6L blocks with 4.0 bore, I had a 346 motor. It worked.

E Wagz
06-07-2007, 03:16 PM
I ran the GM LS7 gaskets,on my 402/6.0L with the AFR 225's.


JMBLOWNWS6
06-07-2007, 03:42 PM
I ordered the new Felpro MLS. :)

ninetres
06-07-2007, 03:45 PM
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 :eek2:

JMBLOWNWS6
06-07-2007, 03:58 PM
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 :eek2:

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. :devil:

http://www.cometic.com/phuzion.aspx

ROCNDAV
06-07-2007, 04:01 PM
I went with the big bore cometics on my build too.

speedracer5532
06-07-2007, 04:25 PM
.040 Cometics with 4.160 bore, got them from AFR.

ninetres
06-07-2007, 05:13 PM
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. :devil:

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

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

So confused.

ABeasst
06-07-2007, 05:23 PM
I run GM MLS.

DanZ28
06-07-2007, 05:24 PM
So they don't work?

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

So confused.

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

Dan

JMBLOWNWS6
06-07-2007, 05:35 PM
I went with felpro because that what Kurt reconmended! :)

Tiago
06-07-2007, 06:53 PM
felpro release the 6 bolt gasket yet?

mr2guru
06-07-2007, 06:55 PM
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.

speedracer5532
06-07-2007, 07:12 PM
SCE Titan ICS are JUNK!

Navy David SS
06-07-2007, 09:11 PM
Large bore .040 Cometics.

David

helicoil
06-07-2007, 10:41 PM
felpro release the 6 bolt gasket yet?

Yes, they have. I can get the part number next Tuesday when I go back to work.

stevieturbo
06-08-2007, 09:02 AM
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.

speedracer5532
06-08-2007, 01:50 PM
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.

Tiago
06-08-2007, 04:24 PM
Yes, they have. I can get the part number next Tuesday when I go back to work.


cool, let me know :)

mr2guru
06-11-2007, 10:05 PM
Yes it is based on personal experience. I have yet to see a set that didn't leak coolant.

I've used them on several motors so far and they have been flawless. :confused:

Much better than the cometics I've used. Most of those did leak.

Although, I've always coated mine with VHT copper spray sealant.

speedracer5532
06-11-2007, 11:37 PM
I've used them on several motors so far and they have been flawless. :confused:

Much better than the cometics I've used. Most of those did leak.

Although, I've always coated mine with VHT copper spray sealant.Weird, I have never had a problem with cometics and my buddy did spray his Titan ICS gaskets with copper spray and they leaked coolant real bad.