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double valve springs

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Old 06-02-2008, 09:18 AM
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boost mad
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Default double valve springs

do u have to get the head machined in anyway to fit double springs for BD 14 cams?


thanx in advance
Old 06-02-2008, 03:17 PM
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KSA-Cossie
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Thought tony @ turbosystems told you m8 ?
Old 06-02-2008, 07:16 PM
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boost mad
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He did indeedy, but i like to get lots of opinions.

I still want to no wethere or not double springs exist where the head doesnt have to be modified as im sure it was someone on here that told me that

Old 06-02-2008, 07:36 PM
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Yeah suppose you're right m8 more advice the better.
Old 06-02-2008, 10:07 PM
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Miller 3
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im sure some one was selling some where you don't have to machine the head but this was the first time i have heard about them
Old 07-02-2008, 05:02 PM
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Craig J
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Spoke to Kent Cams about this last week and they assured me as long as you use the correct retainers which they supply then you don't need to machine the head.
The chap who I spoke to was Andy on 01303 248666. Might be worth a phone call to double check.
Would also be worth knowing about any issues people have had with these in the past?
Old 08-02-2008, 12:21 PM
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Old 08-02-2008, 01:09 PM
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CossieRich
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You dont need double valve springs for a BD14 cam
Old 08-02-2008, 01:23 PM
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Craig J
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Originally Posted by CossieRich
You dont need double valve springs for a BD14 cam
Kent Cams were very honest and told me that they were not absolutely necessary, but for an extra piece of mind and better valve control I think I'm gonna do it anyway. All I can say is that there was clear evidence of valve contact on the top of 2 of my pistons which could have been caused by various other reasons, but I would rather be safe.

By the way, I do not have any association with KC and have not used their products to date except their BD14 cams which were already fitted to my engine.
Old 08-02-2008, 01:29 PM
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Craig J

Have you got valve cut outs machine dinto your pistons?
Old 08-02-2008, 01:35 PM
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Originally Posted by CossieRich
Craig J

Have you got valve cut outs machine dinto your pistons?
Yep.... but obviously not big enough!
Old 08-02-2008, 02:03 PM
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boost mad
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Originally Posted by CossieRich
You dont need double valve springs for a BD14 cam

I have been told this already. But interested to know anyway !
Old 08-02-2008, 02:33 PM
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Originally Posted by Craig J
Originally Posted by CossieRich
Craig J

Have you got valve cut outs machine dinto your pistons?
Yep.... but obviously not big enough!
How big is big?
Old 10-02-2008, 01:37 PM
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col cos1
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ive just bought double valve springs off wes on here he got them from martin reyland and dont need any machine work

+i run bd14s with no valve cut outs and have no valve crash issues
Old 10-02-2008, 09:41 PM
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i have piper double valve springs fitted and i did not need to machine the head, i also used piper retainers.
Old 12-02-2008, 05:44 PM
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Niall.b
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i got a set from reyland & no machining is required
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