Classic Mini Valve Guide Set (8) Manganese Bronze Type
New colour, specially heat treated manganese 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. We therefore introduced Manganese bronze guides which have good cutting properties and good wear characteristics and are original equipment on Porsche and Mercedes. We use the manganese bronze guides and have them specially heat treated for performance use. These valve guides are recommended when using all EN21 4N stainless steel valves. Exhaust valve guides should be opened up 1/2 thou more for valve.
Part number for reference: C-AJJ4037
£36.95 (£30.79 ex.VAT)
Out of stock