http://www.bighealey.co.uk/category/catalogues/austin-healey/engines/3000-top-end The taxonomy view with a depth of 0. en http://www.bighealey.co.uk/content/aluminium-cylinder-heads-6-cyl <p>Having had 12 months development prior to their launch 5 years ago, these brand new cylinder heads are from our own drawings, patterns and castings, and are completely computer machined to our specifications. The development process has seen them, crack tested and inspected at every stage. We have run them on our dynamometer to remove all faults. Finally, we have sawn them in half to get right inside the casting, ports, oil and water galleries. During production every head is pressure tested and fitted with precision ground, replaceable, lead-free valve seats of the latest material, where applicable they are complemented by our top quality valves, guides, springs and top caps, these are complete and ready to fit with new rocker and manifold studs. FIA Approved.</p> <p><a href="http://www.bighealey.co.uk/content/aluminium-cylinder-heads-6-cyl">read more</a></p> 3000 Top End Fri, 19 Dec 2008 16:16:33 +0000 admin 15027 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/valves-0 <p>All our valves are made from one-piece forgings in 214N stainless steel with stellite tips and plasma nitrided stems for increased life. Suitable for both leaded and unleaded fuel. These are made to the lightest design using standard size stems and collets.</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12921 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/colisbro-bronze-valve-guides-0 <p>These are essential in all racing engines and engines converted to lead-free fuel. They are specially manufactured for us to the same standards as used by F1.</p> <p>Prices stated are per item.</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12922 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/competition-valve-spring-set-0 <p>These give increased seat and nose pressure. </p> <p>ENG525HD - Double springs to suit std &amp; fast road cams<br /> CENG525 - Single springs to suit higher performance cams</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12923 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/lightweight-valve-top-caps-0 <p>These are manufactured from either top quality aircraft aluminium and are hard anodised red or high grade steel and heat-treated.</p> <p>Prices stated are per item.</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12924 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/valve-stem-oil-seals-0 <p>These are top hat type oil seals which fit around<br /> the top of the valve guide.<br /> These will only fit with our competition single valve springs.</p> <p>Price stated is per item.</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12925 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/valve-collets-0 <p>Due to the non-availability of good quality collets we have had these made to the highest tolerances from EN24T steel and heat-treated. Also direct replacement for the standard.</p> 3000 Top End Mon, 18 Feb 2008 12:36:31 +0000 admin 12926 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/valve-spring-shims <p>We have had these made specifically so that the race engines and badly worn road engines can have all the valve springs shimmed to the correct length. We have two sizes of bore diameter available to suit valve guides with or without circlips.</p> 3000 Top End Mon, 18 Feb 2008 12:36:32 +0000 admin 12928 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/heavy-duty-cylinder-head-studs <p>These are manufactured from the highest grade steel and heat-treated in order to have a greater resistance to stretching and therefore helps reduce head gasket problems. The waisted design gives a greater clamp load as the gasket compresses.</p> <p>Price stated is per item</p> 3000 Top End Mon, 18 Feb 2008 12:36:30 +0000 admin 12914 at http://www.bighealey.co.uk http://www.bighealey.co.uk/content/heavy-duty-cylinder-head-washers-0 <p>A must when using an aluminium head, although also recommended for iron heads as well. </p> <p>Price stated is per item</p> 3000 Top End Mon, 18 Feb 2008 12:36:30 +0000 admin 12915 at http://www.bighealey.co.uk