plk21e Posted June 15, 2011 Share Posted June 15, 2011 hi are there any benefits in replacing standard mk3 head with one from a mk4 with double valve springs or can the mk3 head be converted to double valve springs Link to comment Share on other sites More sharing options...
Clive Posted June 15, 2011 Share Posted June 15, 2011 No advantage in double valve springs (until silly rpm) Now, the early mkIV head has larger valves and the same CR as teh mk3 (if my memory isn't playing tricks) so that is worth having. And the double valve springs can be fitted if you really wanted, but there are some genuine jag springs that work well and cost about 10p each (genuine jag too, no repro stuff) Link to comment Share on other sites More sharing options...
Paul Garvey Posted June 16, 2011 Share Posted June 16, 2011 Credit to Gareth Thomas: EBC4871 Valve Spring (was EAC5875) £0.20 each + VAT Paul Link to comment Share on other sites More sharing options...
plk21e Posted June 17, 2011 Author Share Posted June 17, 2011 thanks for the replies,just i had a chance of a mk4 head from a breaker.These jag springs do you get these from a jag dealer? thanks again Link to comment Share on other sites More sharing options...
Paul Garvey Posted June 17, 2011 Share Posted June 17, 2011 Quote from: www.jaguarclassicparts.com/html/JCPHomePage.htmlcheers Link to comment Share on other sites More sharing options...
James Posted June 17, 2011 Share Posted June 17, 2011 I get mine from here: http://www.jagspares.co.uk/Manners/company.asp Link to comment Share on other sites More sharing options...
plk21e Posted June 17, 2011 Author Share Posted June 17, 2011 thanks alot can see them now at 24p :) :) Link to comment Share on other sites More sharing options...
sparky_spit Posted June 17, 2011 Share Posted June 17, 2011 And it's the best £1.92 you will ever spend on your car. I splashed out £5.76, which should last me to my grave (if they don't go rusty before I do). Link to comment Share on other sites More sharing options...
MarkB Posted June 17, 2011 Share Posted June 17, 2011 Hi can these springs be used on Vitesse/Gt6 engines.Cheersmark Link to comment Share on other sites More sharing options...
James Posted June 17, 2011 Share Posted June 17, 2011 Yes they can be used on 6 cyl engines too.I bought 35 of them earlier — I wonder if they are wondering why people are ordering odd numbers of them :) Link to comment Share on other sites More sharing options...
plk21e Posted June 17, 2011 Author Share Posted June 17, 2011 i have ordered mine but had to get 10, the postage was more than the springs but still worth it Link to comment Share on other sites More sharing options...
thescrapman Posted June 17, 2011 Share Posted June 17, 2011 I was going to say, get some mates together and buy in bulk as teh postage is way more than the springs otherwise.I purchased 40 a few months ago, enough for 3 6-pots and a couple to go sproing across the workshop.CheersColin Link to comment Share on other sites More sharing options...
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