STUD HS4/HIF CARB + some 12G103 HOUSING (5/16")

Universal stud made for fitting the HS4/HIF carb to the manifold (except HS6 with alloy spacer on cast one piece manifold which requires CHS2515 (5.8mm longer)) and it also fits the cylinder head to take the thermostat housing. Note that HS2 carbs require larger CHS2613/4 studs, 5/16" unc with unf thread for nut.