For the ultimate in 1275cc overbored engine performance, double heat treated pistons. You can't beat cubic inches for performance, and the A-Series block can be bored far bigger than the factory ever imagined. The standard bore is 70.6mm, the 1380 bo...

We have teamed up with Bill Richards Racing to produce a new range of built up short engines ready to drop in. These engines are as fast and as powerful as you can get, whilst still keeping the on road driveability and a reasonable MPG figure.
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We have teamed up with Bill Richards Racing to produce a new range of built up short engines ready to drop in. These engines are as fast and as powerful as you can get, whilst still keeping the on road driveability and a reasonable MPG figure.
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Single piston ring for 73.5mm Mega and Omega pistons with 1.2mm thick rings and 3 piece oil rings-also for new range of EVO pistons C-STN101

for old 73.5 pistons with 1.5mm top ring try using our C-STN97.

998cc flat top 3 ring circlip type piston set as fitted to early A plus to replace 4 ring set type. Gave 10.3 to1 CR and is a good alternative to use on any 998 with circlip type pistons. Replaced 4 ring(3 ring and scraper) P20754 from Hepolite 1980...

60 thou oversize low drag slipper type pistons for modern day compression ratios and unleaded fuel.

Typically installation will result in a minimum 8.8:1 compression ratio but on some Metro versions it was higher.

Current pistons ...

ringset for powermax 20659 piston with groove sizes 1.5mm and 4.00mm for one piece oil ring -ring measurements are slightly under this --the tapered ring with the ridge fits second groove down-

Timing cover front plate and tensioner plate bolt and washer kit. Comes with all parts to fit the cover except for the counter sunk screws if fitting a duplex kit (our duplex kits all come with these).

Main bearings plus 60 oversize, 1275 2" mains. 60 thou oversize. Heavy duty steel backed bearing for durability and long life. The bearings to use if you want it to last. The only bearings to use on a fast road motor.



Sintered copp...

Mini Spares best quality complete gasket and seal kit for engine block and gearbox,for all common engine types and sizes.



Also comes complete with Mini Spares Evolution clutch oil seal 13H2934MS, differential oil seals...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
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Special superb extra strong timing chain with very limited stretch using modern day materials and technology to keep your timing correct and will fit any A series engine using a single row chain.

This chain saves all the time and effort requ...

Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...

Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...