skodajag Posted October 29, 2018 Report Share Posted October 29, 2018 I have an aluminium cylinder head for the 4 cylinder TR engine, bought years ago, but never fitted. I'm now considering doing so. I'm wondering though what the experience has been with these heads; they've been around now for quite a while, although I don't know how widespread their use has been. Specifically, I'd like to know if they have proved to be as reliable as the original cast iron ones? And are there any particular considerations when fitting them? Quote Link to post Share on other sites
ianc Posted October 29, 2018 Report Share Posted October 29, 2018 (edited) When the Spares Development Fund (SDF) produced a report towards the end of 2017, I stated: TR4A Cylinder Heads 511695 Sales of TR4A Cylinder Heads (511695) from Moss reached 637 by the end of 2017. Approximately two alloy heads have been sold for every one in cast iron. As far as I am aware, the number of problems reported has been very small indeed, but I'm sure that Jeff marks (at Moss) would give a very honest answer. Make sure that you follow the written guidance about fitting to the letter. Ian Cornish Edited October 29, 2018 by ianc Additional info. Quote Link to post Share on other sites
skodajag Posted October 30, 2018 Author Report Share Posted October 30, 2018 Thanks Ian regards, Jonathan (Dollimore) Quote Link to post Share on other sites
Fireman049 Posted October 30, 2018 Report Share Posted October 30, 2018 Don't forget that it is essential to use anti-freeze in the cooling water to protect all alloy parts especially the cylinder head. Tom. Quote Link to post Share on other sites
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