Need a head gasket, can you recommend?
27-10-2008, 12:26 PM
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Need a head gasket, can you recommend?
On the way back from the roling road my head gasket went! Can anyone recomend me 1 that's going to last more than 250 miles!!! I'm running 18psi and it made 197 bhp.
27-10-2008, 12:34 PM
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27-10-2008, 12:58 PM
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Go for Gen Ford or Cometic, I had a Payen one which had a faulty fire ring and lasted less than half a mile!
You must have a smooth block/head for the Cometic one though.
You must have a smooth block/head for the Cometic one though.
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27-10-2008, 05:43 PM
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very easy to do mate but make sure you follow the torque sequence in the haynes manual and makes sure you send the head somewhere to be checked and skimmed before re-sitting otherwise your efforts may be wasted 
27-10-2008, 05:58 PM
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Cheers mate. I'll get the head skimmed anyway as a matter of course. I've also just found a receipt for a cometic head gasket, I thought these were supposed to be the muts nuts?
29-10-2008, 08:37 AM
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Go for competition headbolts my friend, i use these in all my engines i build, they do not stretch like the standard Ford jobbies! They are slighlty longer also which increses thread engagement.
29-10-2008, 08:45 AM
#19
You make it sound like they stretch but they are not supposed to!! LOL. I've used ARP's in mine and have since gone back to £10 Payen bolts. They need to stretch, because the head and block are made from different materials!! 
It's just something abou the CVH, years of experience have proved to me that the standard gasket and bolts are the only thing to use up to 350bhp.
It's just something abou the CVH, years of experience have proved to me that the standard gasket and bolts are the only thing to use up to 350bhp.
29-10-2008, 10:40 AM
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You make it sound like they stretch but they are not supposed to!! LOL. I've used ARP's in mine and have since gone back to £10 Payen bolts. They need to stretch, because the head and block are made from different materials!!
It's just something abou the CVH, years of experience have proved to me that the standard gasket and bolts are the only thing to use up to 350bhp.
It's just something abou the CVH, years of experience have proved to me that the standard gasket and bolts are the only thing to use up to 350bhp.
31-10-2008, 06:34 PM
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From years of building RST engines, i find that the std bolts are prone to snapping due to there thinner shank. This is exagerated even more if the water leaks into the bolt area causing premature corrosion.
I understand that there are two different materials here, cast iron and aluminium, but the cossie is the same setup and that doesnt use stretchbolts, it uses bolts with a greater tensile strength that are less prone to stretch.
I understand that there are two different materials here, cast iron and aluminium, but the cossie is the same setup and that doesnt use stretchbolts, it uses bolts with a greater tensile strength that are less prone to stretch.
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