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JMM Valve Springs + Retainers 

 

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 Post subject: JMM Valve Springs + Retainers
Posted: Tue Mar 31, 2009 7:35 pm 
Getting Side Ways
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Heyhey

Has anyone had any experiences with JMM Valve springs, ive heard good things about them, ie there better then crow.

Anyway wanted to know if JMM retainers are necessary to?

Can I use stock retainers?

 

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 Post subject: Re: JMM Valve Springs + Retainers
Posted: Tue Mar 31, 2009 10:46 pm 
Getting Side Ways
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VIC, Australia

I was going to use JMM springs on an EF head but was told the Ford retainers won't fit. You need the matching retainers. The stock EF springs were tested and found to be stiffer than the JMM springs. Hence, I didn't bother fitting them.

The cylinder head reconditioner I use (Hoppers Express) said they were actually Crow springs which are imported from the US. Not sure if he's correct or not.

 

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 Post subject: Re: JMM Valve Springs + Retainers
Posted: Wed Apr 01, 2009 10:55 am 
NSW Cruise Moderator
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yeah the JMM springs are definatly a crow item, Jays RPD sourced the same spring and did em without the JMM markups.

 

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