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Exhaust manifold gaskets, yay or nay?

SweetWagon

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Quick query,

Currently in process of doing two engine conversions L36 > L67 v6's.

Something im not sure about is the exhaust manifold gaskets. The motor im using was from a wrecker's it didnt have any exhaust on it but there were gaskets stuck to the heads still, the other motor purchased from a forum member still had the stock manifolds on it with no gaskets. Holden also say there is no exhaust manifold gaskets for these motors (L36 & L67).

As both motors are getting pacemaker extractors, should i source some gaskets or just bolt them on directly?

Cheers
 

Burnout124

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if you are going to have extractors thay seal better but with origanal manafolds i would not bother
 

Darren_L

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some extractor/header manufacturers specify not to use gaskets.
That was the case with the Pacemakers I bought for my 304
I don't use gaskets, just a bit of high temp exhaust sealant and no leaks so far.
 

SweetWagon

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some extractor/header manufacturers specify not to use gaskets.
That was the case with the Pacemakers I bought for my 304
I don't use gaskets, just a bit of high temp exhaust sealant and no leaks so far.
Alright cheers might look into that
 

Brett_jjj

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The VSV6 gregorys workshop manual also says that no gaskets are used on the exhaust manifolds.Heres what it actually says :
" the manifold and cylinder head sealing surface must be in perfect condition as no gasket is used".
 
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