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-   -   AFR heads and CMI's - Gaskets? (https://www.offshoreonly.com/forums/general-q/371031-afr-heads-cmis-gaskets.html)

TomZ 04-01-2021 07:00 PM

AFR heads and CMI's - Gaskets?
 
I ran a FelPro 1411 with my iron heads. Any reason not to with the AFR's?


Smitty275 04-02-2021 03:43 AM

I wouldn't even consider a composite type gasket between an iron block and an aluminum head. You'd be much better off spending the money for Cometic gaskets. Plus if it ever has to come apart again you can reuse the Cometics several times with a light spray of copper coat.

SB 04-02-2021 08:03 AM

Looks like the AFR’s re only 3$ more than the Felpro’s.
https://www.summitracing.com/search/...t-in/2-130-in?

TomZ 04-02-2021 08:47 AM

Probably an obvious answer. I had a big order being put together at Jegs and AFR’s gasket wasn’t available.

SB 04-02-2021 09:12 AM

A Possible issue with those felpro gaskets is port size. They are listed as much smaller than the afr’s. You do not want any gasket material overlapping into the exhaust port of the cylinder heads.

If they don’t, then run’m :)

SB 04-02-2021 09:13 AM


Originally Posted by Smitty275 (Post 4784086)
I wouldn't even consider a composite type gasket between an iron block and an aluminum head. You'd be much better off spending the money for Cometic gaskets. Plus if it ever has to come apart again you can reuse the Cometics several times with a light spray of copper coat.

He was asking about exhaust gaskets. :)

TomZ 04-02-2021 09:35 AM


Originally Posted by SB (Post 4784122)
A Possible issue with those felpro gaskets is port size. They are listed as much smaller than the afr’s. You do not want any gasket material overlapping into the exhaust port of the cylinder heads.

If they don’t, then run’m :)

I might have a single gasket up in the boat. I’ll need to look at it. Probably just easier to get the right gasket from AFR.

benjen 04-03-2021 08:34 AM

1412 are the big oval gaskets

fbc25el 04-03-2021 09:08 AM

1411 felpro works for me . AFR 315 heads & CMI E tops.

F-2 Speedy 04-03-2021 09:08 AM

Call Edie Young, he has a multi layer gasket is is reusable. I ran them on the Merc racing heads and the AFR

Rookie 04-03-2021 08:49 PM


Originally Posted by F-2 Speedy (Post 4784266)
Call Edie Young, he has a multi layer gasket is is reusable. I ran them on the Merc racing heads and the AFR

A multi layer exhaust gasket? Interesting

SFOcean 04-05-2021 01:00 AM

fel pro 1411 1.940 round ports

fel pro 1412 2.130 round ports

liquidlounge 04-05-2021 08:38 AM

I have had MLS exhaust gaskets for 7-8 years now and all is good. Oddly enough, I got them from NAPA because I was in a jam - just asked for their best and they were all metal MLS. I don't recall the brand but I do know that they were plenty big enough for the Stainless Marine manifolds that I had.

TomZ 04-06-2021 01:14 PM

Much appreciated guys!

ph1971 04-06-2021 04:57 PM

I am 3 yrs into a pair of Mr Gasket 5912’s between pro 1’s and etops. So far so good. The gaske t should be fit to the exhaust side, so in our case round. Now if I could only keep the header bolts tight. For ****s sake


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