View Poll Results: Which head gskt should I use ??
Fel-Pro 17048
44
27.85%
Cometic
101
63.92%
Other brand ??
13
8.23%
Voters: 158. You may not vote on this poll
Head gaskets--Fel-Pro or Cometic
#21
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Re: Head gaskets--Fel-Pro or Cometic
I've been using the 17048s for five years now on SC 502s running about 5# of boost. Never had a problem. If something works for you, don't mess with it!
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Steve Gresham
'03 Donzi 33ZX
Steve Gresham
'03 Donzi 33ZX
#22
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Re: Head gaskets--Fel-Pro or Cometic
Originally Posted by KAAMA
I have heard that the Cometic gaskets are re-usable----anyone know if that is true or not or just a rumor/tale?
hours on it prior.
I called Cometic and got there approval first.
Blown 10 lbs boost. Going Strong!
Gerry
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Re: Head gaskets--Fel-Pro or Cometic
Originally Posted by KAAMA
I have heard that the Cometic gaskets are re-usable----anyone know if that is true or not or just a rumor/tale?
#25
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Re: Head gaskets--Fel-Pro or Cometic
Originally Posted by KAAMA
I have heard that the Cometic gaskets are re-usable----anyone know if that is true or not or just a rumor/tale?
I think the biggest issue on reusing it is to make sure none of the coating is coming off, If it is you will see shiny spots on the dark colored surface. This usually happens between the cyl on the thinnest part. If you see this don't reuse them. These gaskets are put on dry and the surface needs to be flat and have a smooth RA number like Strip said.
#26
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Re: Head gaskets--Fel-Pro or Cometic
Cometic will tell you they are re-usuable. They have a minimum thickness dimension, when they are not compressed. They will have you measure the gasket thickness between cylinders and if it is more than "x" they claim you should be ok. The minimums vary with gaskets I believe. I was going to try it and decided to anti up for new ones. Just too darn much work pulling things back apart! Give them a call.
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Re: Head gaskets--Fel-Pro or Cometic
been running my for over a year after using them for the second time no leaks exclent leak down #s and no water in the oil and this is on a 540 with 7 lbs. boost 8.6 comp. timing at 30 no problems
#29
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Re: Head gaskets--Fel-Pro or Cometic
Just pulled down my 540 blower motor a few weeks ago,felpro's still looked new after 2 years,130 hours as much as 12lbs boost but normally 9lbs,Smitty
I wish the Cloyes hex adjust true rollertiming chain,j/e blower pistons and comp magnum hyd roller lifter's still looked as good (they are all either marginal or junk!
I wish the Cloyes hex adjust true rollertiming chain,j/e blower pistons and comp magnum hyd roller lifter's still looked as good (they are all either marginal or junk!
#30
Re: Head gaskets--Fel-Pro or Cometic
Heres some more info I found
502 hp 500 head gasket 17048 is the same as the 1045 with a bore of 4.550
The 17049 if for a 4.630
Both of theses are for a gen 5 and 6
The intake gasket on a 502 carbed gen 5 -17341 is the same as a 1274 that has the upper bolt holes.
The 17342 intake gasket is for the efi gen 5 and 6 it the same as a 1275 with out the bolt holes
The top end rebuilt kit [head set] is
17249 gen 5 that comes with a 1274 intake that will not work on a 500hp carbed because of the dart intake .
the 17281 is a gen 5 efi set
the 17207 in the gen 6 set like on my 500 efi .
Hope this helps?
Rob
502 hp 500 head gasket 17048 is the same as the 1045 with a bore of 4.550
The 17049 if for a 4.630
Both of theses are for a gen 5 and 6
The intake gasket on a 502 carbed gen 5 -17341 is the same as a 1274 that has the upper bolt holes.
The 17342 intake gasket is for the efi gen 5 and 6 it the same as a 1275 with out the bolt holes
The top end rebuilt kit [head set] is
17249 gen 5 that comes with a 1274 intake that will not work on a 500hp carbed because of the dart intake .
the 17281 is a gen 5 efi set
the 17207 in the gen 6 set like on my 500 efi .
Hope this helps?
Rob
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.