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Minisport
Current Category
Engine parts > Engine head parts & accessories





Mini tappet adjusting screw (single)

Mini tappet adjusting screw (single)

12A1215- TAPPET ADJUSTING SCREW - MINI

All the small bore (not 1275) use this adjusting screw, sold seperately.



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Mini rocker post spacer (1.30mm thick)

Mini rocker post spacer (1.30mm thick)

2A515- Mini rocker post spacer (1.30mm thick)

Spacers for under the rocker pedestals are used mainly by engine tuners to allow tappet adjustment to be made where cylinder head modifications have been carried out. 1.30mm/0.0512" thick. 



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Mini stainless steel head nut covers

Mini stainless steel head nut covers

SMB27- Mini stainless steel head nut covers

These are head nut covers that screw onto your protruding head stud when the nuts are fitted.



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Mini rocker stud short (inner) 2 req per head (SOLD SINGLE)

Mini rocker stud short (inner) 2 req per head (SOLD SINGLE)

CHS522- ROCKER STUD SHORT (inner) 

5/16unc stud with unf end for nut and is 2.75"long 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 (CHS522) per head. course thread cylinder head end and UNF for nut other end.



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Mini rocker stud long (outer) 2 req per head (SOLD SINGLE)

Mini rocker stud long (outer) 2 req per head (SOLD SINGLE)



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Mini rocker stud short+ long set (set of 4)

Mini rocker stud short+ long set (set of 4)

CHS522 + 51K885- SET OF 4 (2 long & 2 Short) rocker stud set

2 Inner and 2 outer rocker gear studs (bolts onto the head)



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Mini competition head washer set (10 in a set)

Mini competition head washer set (10 in a set)

C-AHT288- HEAD WASHER SET (10)

Competition head (spring) washers, set of 10.
Original ST spring type washer especially required when using original 6-sided head nut. Suits ALL size engines 850/1000/1100/1275/Cooper s



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Mini 'small bore' valve stem seal (o'ring type) set of 8

Mini 'small bore' valve stem seal (o'ring type) set of 8

2A879- Mini 'small bore' valve stem seal (o'ring type)- set of 8

Valve stem seal for many engines, this is the 'O ring' type as used on many small bore engines 



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Mini valve stem seals, set of 8

Mini valve stem seals, set of 8

Mini valve stem seals, full set ADU4905

These valve stem seals suit most mini's, they are the best on the market as they have a spring that holds them tight against the valve itself. They fit any head with the groved valve guides (have a grove at the top of the guide like the ones in our store 12G1963).

You get a set of 8 (4 inlet and 4 exhaust).



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Mini valve spring set suit 850-1000-1100cc

Mini valve spring set suit 850-1000-1100cc

AEA311(x8)- Mini Valve springs set of 8

Suit any small bore engine, weak valve springs can lead to valve bounce and massive power loss, we also would strongly suggest you install some new valve stem seals when doing these.



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Mini dual valve springs, FAST ROAD, 200LB

Mini dual valve springs, FAST ROAD, 200LB

C-AEA526- VALVE SPRINGS RISING RATE UP TO .495 LIFT FITS ALL (200lb)

Manufactured from super quality silicone wire imported from Switzerland, their resistance against fading and breaking is extremely high. They are also designed to take standard type top caps. They can be fitted directly to the head with no fear of spring crush.
200lb Dual springs for use up to 8000 rpm and .400 lift.



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Mini dual valve-springs, RACE TYPE, 280LB

Mini dual valve-springs, RACE TYPE, 280LB

C-AEA527

Valve-springs, Race-type 280LB

Modern high lift, short-duration camshafts have posed quite a few problems for the general public in recent years. Widely available performance valve springs were out-dated overnight, as it became necessary to reduce spring crush.
The standard fitted length of springs is 1.4" - 1.42"



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Mini manifold stud and long nut set

Mini manifold stud and long nut set

New manifold-studs and long brass-nuts

New studs and long nuts, to suit mini manifold thread, the long nuts tend to make it easier for you to get to them, so you can undo and retighten the nuts with relative ease..



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Mini manifold nut, short type (SOLD SINGLE)

Mini manifold nut, short type (SOLD SINGLE)

GFK3436- MANIFOLD NUT SHORT BRASS

 Stock brass manifold nut. You will probably want a mix of these and the longer 51K1177 to secure your intake/exhaust manifold. Sold separately (you will need to buy 6 of these for a complete set)



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Mini manifold stud, for all carby (SU) mini's

Mini manifold stud, for all carby (SU) mini's

53K487- MANIFOLD STUD ALL A SERIES UPTO SINGLE POINT INJECTION

Manifold stud for all A series engines up to injection which use LYR10028 which is 6mm longer at 45mm.



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