Please check the size of your bolt from your engine before ordering as there are some variations between Black Top, Silver Top and ST170 engines.9mm x 37.5mm bolts which is part no (Z044).
8mm x 44mm long.
Good insurance against rod failure.
Ideal for road and race engines.
9mm x 37.5mm bolts also available (Z044)
Zetec Black Top High Lift Cams - BP285 - Ultimate Road (ZFOC20-BP285)
BDA/BDG/BGT - Camshaft - PH4 - Race (Pair) (BDAPH4B)
ARP - Zetec Black Top Main Stud Kit (Z094) 
