Double Valve Springs

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reychris

Double Valve Springs

#1 Post by reychris »

Hi all,

About to start recommisioning a rally spec sprint engine and one of the things to replace are the valve springs as it hasn't turned over in many a year.
Currently it has a Piper BP300 cam and double valve springs.
Can anyone tell me where I can get new double springs from?, have tried Piper, Kent, Rimmers etc but with no luck.

Thanks
Chris
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Ron1966
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Re: Double Valve Springs

#2 Post by Ron1966 »

If they are serviceable Chris I would leave well alone because they are probably better quality than some of the rubbish about now.
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Mad Mart
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Re: Double Valve Springs

#3 Post by Mad Mart »

Try Ken Clarke Motorsport.

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soe8m
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Re: Double Valve Springs

#4 Post by soe8m »

I would not use them again. Too much strain on the chain and tensioner and very not needed in a sprint.

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Ron1966
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Re: Double Valve Springs

#5 Post by Ron1966 »

Lots of good advice and knowledge on this site Chris from people who have first hand experience of uprated Sprints like Jeroen and Mart. Anyway welcome to the forum.
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bodgerben

Re: Double Valve Springs

#6 Post by bodgerben »

Burton's - if you really need doubles look at their Sierra Cosworth range - they fit.

Rally engine - good quality singles may be your best bet (again, size up a set from Burton's and check for coil gap at full lift).

Or phone/email Ken Clarke or Rob MacGregor (SprintSpeed) and find what they use.

Singles are fine for 7.5k
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reychris

Re: Double Valve Springs

#7 Post by reychris »

Many thanks for the info, will try those leads.
Didn't know that Sierra cosworth springs fit, what did we do before forums were invented!?
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Carledo
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Re: Double Valve Springs

#8 Post by Carledo »

reychris wrote:Many thanks for the info, will try those leads.
Didn't know that Sierra cosworth springs fit, what did we do before forums were invented!?
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Re: Double Valve Springs

#9 Post by lazeruspete »

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DF

Re: Double Valve Springs

#10 Post by DF »

Unless your reving the nuts off the engine singles will be fine
If you can find some lighter valves even better ,
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