Hardened unleaded valve seats for 1.15" 1275 exhaust valves.
Require a recess of 1.2495"(31.737mm) diameter, plus or minus 0.0005" (0.013mm), and 0.250"(6.35m) deep at ambient temperature of 20C.
1.402" (35.6mm) dia x 3.57" long intake valve.
Our race valves are produced in EN214N steel and are stellite tipped and use the later narrow, single collet groove and current valve head shapes. They are plasma heat treated to eradicate wear ...
1.3" x 3.57" small collet intake valves, standard on Austin America, A-H Sprite, MG Midget and later A-Plus 1275cc Mini.
As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or wo...
Smal O ring that sits on the valve stem on all 850 and early 998 cylinder heads with large collet grooves.
This is the standard size valve with triple groove collets for A plus 1275cc
heads and 3.59 long. If you want the next size up use the TAM1059.
Mini Spares spacer kit re-designed in 2005 for correcting rocker alignment.
This kit has been produced to help rocker pad and valve stem alignment plus reducing friction. The standard springs can be replaced with this special kit of 3 spacer...
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...
Exhaust valve. 1.22" (31mm) x 3.52"
As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or worse yet, confuse the parts-guy when it is time to order new valves! Be aware that...
1.158" (29.4) dia exhaust valve for 12G940 casting.
Our race valves are produced in EN214N stainless steel and require Manganese/Silicon bronze alloy valve guides. They are stellite tipped and have the triple collet groove and c...
1.158" (29.4) diameter exhaust valve for 12G940 casting.
Our race valves are produced in EN214N and plasma heat treated to eradicate wear from unleaded petrol. They are stellite tipped and use the later narrow, single collet gro...
If you want performance then you know you have to get as much air into the cylinder as possible. The bigger the valves the more this is possible. The standard 1275 mini and Sprite motor has only 1.3" intake valves, the standard Cooper "S" has 1.41" i...
Made in EN214N steel and chrome plated for use with standard iron valve guides.
33.3mm (1.311") inlet valve easily noticable by there odd shape they are claimed to give better flow characteristics in standard or slightly modified engines.
That tell tale puff of blue smoke when you first start is an indicator of worn guides or seals. Valve guides should be replaced with every valve job.
Sold individually, these are the original quality Cooper S guides for use in any head espec...
Original type steel 'S' competition top caps for dual springs.
If you are upgrading from single springs or just want to replace those old worn top caps, these better grade material are the best answer. Eight required per head.
Inlet valve 1098cc with small cotter groove.29.2mm(1.15") and takes AEA311 spring.Sold singly 4 required per engine.
made in EN214N steel chrome plated for use with standard iron guides these valves are claimed to give better flow characteristics.31.75mm(1.250")exhaust oversize valve
If you drive A-Series cars long enough you will eventually have to replace the water pump bypass hose. These are the best quality available to fit without removing the cylinder head but these fluted rubber hoses have a bad reputation so if possible ...
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