Classed as the 29mm exhaust valve for 12G940 or A plus 1275cc heads this uses the single groove collets 88G459. Actually 29.3(1.154") Sold singly.

160lbs on the nose at 400" for standard Cooper S or twin spring set ups. See C-AEA526 and C-AEA527 for later developed springs. These are ok for all standard uses but are improved and uprated over all original factory fitted...

That tell tale puff of blue smoke when you first start is an indicator of worn guides or seals. Valve guides should be replaced with every valve job.

Sold individually, these are the original quality Cooper S guides for use in any head espec...

1.3" x 3.57" small collet intake valves, standard on Austin America, A-H Sprite, MG Midget and later A-Plus 1275cc Mini.

As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or wo...

There is nothing special about these A Plus single valve springs. The valves were a longer fitted length but fitted the later 998 and all 1275 versions. They are an excellent replacement for any single spring 1275, Austin America, 1300, etc. sold sin...

29.3mm exhaust valve in EN21 steel. As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or worse yet, confuse the parts-guy when it is time to order new valves! Be aware that if the head ...

35.6mm inlet valve in EN52 steel.As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused or worse yet confuse the parts-guy when it is time to order new valves. Be aware that if the head has b...

New colour, PB104 bronze guides.Although Silicon bronze valve guides were used for their extremely good wear values, they were very hard and not user friendly when fitting. These valve guides are recommended when using all EN21 4N stainless steel val...

As an engine wears, the clearance between the valve stem and guide increases; as this gets beyond tolerances the car will tend to smoke under deceleration (when you take your foot off the throttle). Good valve stem seals will allow for greater wear b...

Adjustable cam gear set with non stretch chain. Cam gear weighs 674g

Even a stock camshaft needs to be timed correctly. If you want to get the maximum benefit from a "hot" cam it is doubly important that the cam timing be correct. This adju...