Fai autoparts the professional choice our motor racing manufacturing background together with forty years experience of supplying engine professionals and distributors in over fifty countries worldwide has enabled them to produce a true all makes range for european japanese korean cars light vans brand fai auto parts part gasket cylinder head reference hg1066 technical specification engine code tu5jp4 nfx bore mm 78 5 notches holes number 0 thickness mm 1 4 thicknes