A true Cooper S engine has 10 studs and one specially designed bolt. The ARP version of the stud is a 12 point design that matches the head stud kits (which come in either 9 or 11 stud.) Best of all, the ARP bolt cost less than the standard item!
The screw that locks the cable on the ADU9102 genuine heater valve bolted to the cylinder head.
Correct latest spec head nut.Beware many sell an inferior nut.
Fitted to A Plus on, the built in flange of this latest specification multi point nut helps to spread the load and improve clamping force.
They may be used on any A-...
5/16 unc 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 ([link]51K885...
Goes on both ends of the rocker shaft to keep tension on the #1 & #8 rockers.
The 8 port head is taller than standard A series heads so these MGB short head studs are used on the front--4 3/8" long 3/8" UNC stud with unf end for head nut. These studs are also used for rod change gearbox differential housings.
[link}53...
Manifold stud for all A series injection engines and some late carburettor cars which is 45mm long-6mm longer than 53K487.carburettor engines usually retained the 53K487 shorter screw for the outside 2 holes.
Sold singly,6 per c...
The newest development in the A-series engine is the use of these nuts with swedged-on washers. The washer will not separate from the nut, so you won't lose it. Yet the nut rotates independently while you tighten it. What a great idea.
This A type block 3/8" unc
stud to retain the cylinder head is 11/16"(17.3mm) longer than the standard 4" type with 1.5" of thread to hold brackets for other ancillaries such as coil. Usually fitted only at the heater tap end of the cylinde...
This set is for cars with sandwich plates fitted under the thermostat elbow, mainly cars from 1990 on. These stainless steel bolts have multi point thick flanged heads. Quantity required one kit per car.
EN24 Nickel Chrome moly steel studs, Competition head stud kit (11 studs, nuts & washers.) 4 long and 7 short.
This special kit was developed to replace the increasingly inconsistent standard items. The studs are manufactured in selected hi-...
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.
This is ...
Competition head (spring) washers, set of 10.
Original ST spring type washer especially required when using original 6-sided head nut.
Circip, this tiny hairpin clips over the early valve spring collets 2A11EVO. Although Leyland said they were not required any longer on a bulletin around 1970 most people regard them as an extra safety part as the collets always looked a...
Heater valve studs fitted to the cylinder head. 1/4"unf 1.1250" long.
On late A plus engines the factory changed over to bolts rather than a stud on thermostats with a sandwich plate underneath them, all are interchangable as the cylinder head threaded hole was standard. 5/16"unc 2.5"long(2 & 9/16" to be exact (63.5mm)...
Standard A-series cylinder head retaining nut. For the later flanged nut see part number CAM4545.
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