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Af470

Started by Yoda , Jun 28 2012 04:18 PM

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4 replies to this topic

#1 Yoda

Camshaft & Stage Two Head

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Location: Dartford, Kent
Local Club: Medway mini club

Posted 28 June 2012 - 04:18 PM

Hi my son has just finished replacing his valve stem seals after rushing through a turbo setup on his car and filling the neighbourhood with blue smoke :proud:

, come to put it back together and the only head gasket we have handy is a Payen AF470, does this sound like a reasonable one? as ive always opted for BK450?

Many thanks,
Colin

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#2 minidaves

Up Into Fourth

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Location: kent
Local Club: mine

Posted 28 June 2012 - 05:24 PM

af470 if its black ok if its cooper i would say no

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#3 Sam Walters

Up Into Fourth

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Posted 28 June 2012 - 08:13 PM

The AF470 and BK450 are the same baring a small ring around the oil supply for the rocker shaft. Thus arugably the 470 is slightly better then the 450.

Ive never had a problem with either the BK450 or the AF470 at 120hp+ in n/a form.

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#4 Wil_h

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3,244 posts

Posted 28 June 2012 - 09:11 PM

As above AF470 is fine, identical to BK450 other than oil hole.

I use an AF460 on my 998 turbo with ouver 180bhp and it seems ok, My preference would be the BK450, but these are no good on alloy heads.