would like to get together a list of composition gaskets with their characteristics and if possible have it archived. for the most part all the different MLS and copper offerings are pretty well identified through the vendors but the composition stuff seems a little more mysterious. feel free to add or correct information, a lot of info is from summit. i "thought" the mopar performance gaskets used to be the 1009 and the detroit but looking at the construction they have no wire and the 1009 does. prices posted are summit list without possible discounts.

fel pro....

8519PT1-basic stock permatorque, no wire, eyebrows, iirc around .041-.044 compressed. good sized bore, will fit bores with large chamfers, good gasket for mild builds. $18 each

17059- this is the marine head gasket, 4.5 bore, no wire, .039 compressed, 10.3cc (stainless construction?) $49 each

1009-race gasket with wire, .039 compressed, 4.41 bore, 9.9cc, often will not work on >4.375 bore. $42 each

1039-race gasket with wire, .051 compressed, 4.59 bore, 13.7cc, clear pretty much any bore or chamber. believe will fit wedge or hemi. $62 each

1095-no wire, steel core laminate, pro stock for the TS head, .051 compressed, 4.62 bore, 15cc $80 each

1105-race gasket with wire, .051 compressed, 4.59 bore, 13.7cc wedge only. $74 each.

mopar performance....

P4349559- race gasket no wire, .040 compressed 4.38 bore, 9.8cc. i thought this was the 1009 but it isn't as it has no wire. $60 pair

P4529455- race, no wire, eyebrows, .038 compressed, 4.42 bore, 9.55cc. $74 pair

victor reinz 3464SG (nitroseal)-performance, .045 compressed, 4.43 bore, 11.1cc. they also have MLS offerings in their performance catalog probably made by another manufacture

victor reinz 3464VC, listed as VR2000 construction. good luck finding any more about this one

detroit gasket(corteco?)-55655HG race, no wire, eyebrows, .038 compressed, 4.42 bore, 9.55cc same as P4529455

ROL HG31130HT- race, eyebrows?, .045 compressed, 4.505 bore, 11.8cc

edelbrock 7325-.038 compressed, 4.45 bore, 9.969cc. $62pair

Great post, With all of our different needs here at moparts, this is what we need . mike

I just got the 1105 Fel Pros for $64.00 @ Summit Pro Shop.. Best deal..
I prefer these.



Chris..

Quote:

---

Great post, With all of our different needs here at moparts, this is what we need . mike

---

This is the old package. I have no idea if Mopar Performance is still using the same gasket with this part number.

EDIT: And this is what the MP catalog in 2000 said:

P4529455: B/RB - Up to 4.380" bore

great Jim thanks. at this point i'm going to assume that is still the same piece and edit my post. i also add the eyebrow aspect to the gaskets i know have them.

i'm now looking into this more that gasket might be a corteco

The last MP head gasket that I bought about a year ago, was the Felpo 1009. The biggest problem that I see with those gaskets is the that the fire ring actually stuck out into the cyl bore on a .060" over 440. I tried to use a used 1009 with the honing plate to hone my new .030" over 440, but the hone hit the fire ring on it also.
Brian

Great thread, I'd like to add that I checked out the Edelbrock 7325 the other day and it looks just like the orange gasket 440Jim posted but it's white. It has the same little dots all over it. It is a steel core laminate which is suppose to handle decent compression, 12 to 1 or a little higher. Supposedly made by ROL.

.038 thick, 4.450 bore, $62 a pair.

Here they are................

Brian, that's the reason for this post. to try to hammer out what will and will not work for different applications. for instance afaik the 8519PT1 will make it on just about any bore that a gasket of it's quality might be used on but it won't hold high CR. probably safe for most (no nitrous) applications up to 11:1ish. bore and chamber overhang is a constant problem. you can solve that by using gaskets like the 1105 but it's a real cc hog and may open up the quench distance more than you want.

Just got a pair of the eddy ones yesterday...Pro Shop price...53.00...

also guys i'm not saying any of this is written in stone, this is a work in progress and i'll edit it as we go.

i don't know to be honest. i'd like to get others opinions on this but i'm thinking anything over 12.5:1 starts pushing the limits of composition gaskets especially ones without wire in them. not that it can't and hasn't been done (often) just that the reliability starts to go down. questions like these are the reason for the post. imho the 1039-1105 are thicker than needs be but maybe this is a manufacturing requirement althought the 1009 isn't that thick but won't fit many bore sizes.

yea jim for the most part i'm figuring builds at that level are going to be using MLS or copper and these all seem to be pretty well defined. as you said you can usually get some reuse out of them so the actual cost goes down.

Quote:

---

I would gain a half a point compression going with something like that Edelbrock 7325 but I dont know how it would hold up to 13:1 compression..

Any other options?

---

The 7325 is a stell core laminate, which is suppose to be better than a regular composition gasket. I think you'd be ok honestly. The guy at Summit told me they've been using the steel core laminate gaskets on everything, even turbo cars.

Nice list!

Quick correction though:

The ROL HG31130HT are .045 compressed thickness.

OK thanks, i edited the list and hunted down the bore and volume as well