5/16unc stud 2.800"long with unf end 0.754"thread for nut. Using new hardware makes any job more pleasant. If you're servicing your cylinder head you should examine the rocker studs for signs of stretching or stripped threads. Two long (51K885) and two short 51K1473) per head.About (1-2 threads) longer than the A Plus equivalent CHS522. Recommended torque...
22-Kit cache culbuteurs aluminium AUSTIN MINI
No reason for an oil leak here. For the price, they should be replaced every time the rocker cover is off. If you require an upgraded neoprene type for modified engines or longevity see 12A1358MS.
Bouchon acier ( finition mat ) de cache culbuteurs MGA MGB MIDGET
Weslake patents metal rocker cover plate where they were protecting their head chamber design such as the 12G295 998cc cylinder (AEG163 cooperS)head but they appeared on earlier models such as the 997cc cooper and of course S versions