Head gasket question
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Nevs
sixtynineford
6 posters
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Head gasket question
I am reassembling my 521 and trying to decide head gaskets, I have flat top pistons (only .001 in hole), Dove heads worked. I had headgasket issues (headgasket was blown between h20 jacket and lifter gallery) is why tore down this winter suspect problem caused by detonation from running junk gas. I was running the ford felpro gaskets but am looking for mls this round as I am gonna be spraying 200plus n20 at some point this season. All the mls gaskets I can find show 4.600 or so bore, I guess question I am asking is if that will work on my 4.390 bore motor without causing weird quench problems or such? Or should I run copper or ???
sixtynineford- Posts : 48
Join date : 2009-09-16
Location : Carney OK
Re: Head gasket question
Lem sells the Cometics, I'd give him a call. He can answer all your questions.
Nevs- BBF CONTRIBUTOR
- Posts : 2724
Join date : 2009-02-07
Age : 70
Location : NW Iowa(Odebolt)
Re: Head gasket question
Call Lem Evans! he can fix you up with what you need!
'65 T-BOLT- Posts : 1464
Join date : 2009-08-28
Age : 53
Location : Hagerstown,Maryland
Re: Head gasket question
We have the .040"-.045"-.051" in stock . If you desire a smaller bore gasket that can be done .
Re: Head gasket question
What would cause the gasket to blow out from the water jacket to the lifter valley?
That would be my biggest question on this deal.
dkp
That would be my biggest question on this deal.
dkp
bosshoss- BBF CONTRIBUTOR
- Posts : 499
Join date : 2009-08-10
Re: Head gasket question
I suspect detonation blew between combustion chamer and water jacket and then water jacket to lifter valley because I have straitedge check both block and head and look good, I also wasnt running enough octane rating for compression. And looks like I will be calling lem because I really just need some to know what diameter headgasket is needed with 4.390 bore and dove steel heads.bosshoss wrote:What would cause the gasket to blow out from the water jacket to the lifter valley?
That would be my biggest question on this deal.
dkp
sixtynineford- Posts : 48
Join date : 2009-09-16
Location : Carney OK
Re: Head gasket question
x2 on the cosmetics, plus spray on some of that copper sealer for and even better result.Nevs wrote:Lem sells the Cometics, I'd give him a call. He can answer all your questions.
bb429power- Posts : 3129
Join date : 2010-02-13
Age : 30
Location : Michigan
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