Darrenjsy Posted April 7, 2015 Report Share Posted April 7, 2015 Afternoon,all, Could anyone please recommend a company as far south as possible to convert a TR6 cylinder head to unleaded? One of many disadvantages of living on an Island (Jersey) Many thanks in advance. Darren Quote Link to post Share on other sites
barkerwilliams Posted April 8, 2015 Report Share Posted April 8, 2015 http://www.hthoward.co.uk/about-us/company-history/ Slough Did mine really nicely. A quality company. - I'm not connected to them. Alan Quote Link to post Share on other sites
Kevo_6 Posted April 8, 2015 Report Share Posted April 8, 2015 (edited) Afternoon,all, Could anyone please recommend a company as far south as possible to convert a TR6 cylinder head to unleaded? One of many disadvantages of living on an Island (Jersey) Many thanks in advance. Darren Hi Darren I used this company http://www.dandrjamesengineering.co.uk/as they are close to me in Poole, had the head skimmed lightly all new valves, guides and inserts done. The one thing is they ended up not being cheap, it cost me about £500 last year and they did not even paint it but at least I could take it there and pick it up. They are real old school engineering work shop, **** everywhere. No connection but everything worked out fine. Edited April 8, 2015 by Kevo_6 Quote Link to post Share on other sites
john.r.davies Posted April 8, 2015 Report Share Posted April 8, 2015 Just for comparison the TSSC offers an unleading service on your own head (as it were) They don't say who or where does it, but you could ask: https://shop.tssc.org.uk/category/engine?sort_bef_combine=title%20ASC&sort_order=ASC&sort_by=title&page=0%2C4 John Quote Link to post Share on other sites
elclem1 Posted April 8, 2015 Report Share Posted April 8, 2015 Mark Maynard - stroud Quote Link to post Share on other sites
lachouette Posted April 8, 2015 Report Share Posted April 8, 2015 Why bother? You have to drive long and hard in a TR6 (esp if you have overdrive) before valve seat recession sets in. Castrol Valvemaster should sort your worries. Quote Link to post Share on other sites
barkerwilliams Posted April 8, 2015 Report Share Posted April 8, 2015 (edited) Darren, Are you aware there are two methods of securing the valve seats and most suppliers only use one method? So decide what you want before settling on a supplier. Until a couple of years ago valve seats were oversize and frozen in liquid nitrogen to shrink them to fit the heated cylinder head recesses. Now some suppliers have the valve seats and recesses similar sizes and bond the valve seats into place. I don't know what's best but I had mine heated / frozen. Edited April 10, 2015 by barkerwilliams Quote Link to post Share on other sites
jamesStag Posted April 9, 2015 Report Share Posted April 9, 2015 Hi Darren, As others have suggested, do you really need to do this? If the head's not already off the car I'd leave well alone. As you live on Jersey, with relatively small distances and lower speed limits, as valve recession only significantly occurs at high revs / speeds (like on dual carriageways and motorways) then in my opinion I doubt this would be an issue for you. (by comparison, we've been running a Stag on unleaded since the mid 90's and around 15k miles in that time on the UK general roads, including motorways. no valve master and nothing has changed with the valve clearances... Not TR6 I realise but similar vintage) Sorry if this reply does not really help you if you already have the head off!! Cheers, J. Quote Link to post Share on other sites
whatmore179 Posted April 9, 2015 Report Share Posted April 9, 2015 I'll second Mark Maynard - Stroud, if your going to do it. Steve Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.