£48.00 exc vat
£57.60 inc vat
In stock
Typically installation will result in a minimum 8.8:1 compression ratio but on some pre 1984 Metro versions it was higher.
Current pistons differ from the 60s originals, improved with a "low drag" slipper skirt design and a shorter lighter wrist pin.
Wrist pin height is 1.4689", crown has 8cc dish, and they have two 1.5mm compression rings and a 4mm oil ring.
From the top ring to crown these measure about 7mm and the high compession P21253 piston have 10mm gap from top ring groove to crown.
Ringset is R35960-20.
Now Nural stamped 87-521707-00
Sold singly,4 per engine required
AE Hepolite is now owned by Federal Mogul and trademarked "Nural".
£48.00 exc vat
£57.60 inc vat
In stockRecommended usage 4 x P21251-20 to fit one mini.
Low drag 1275 piston standard size 2.780 plus 20 thou oversize(Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990.
The best performance 1275 pistons are C-STN100 range which have 9.7...
Mini Spares Evolution Lightweight Performance Piston-single piston and rings.
Press fit only. Same design as C-STN103 but different manufacturer
The ultimate in lightweight die cast pistons, available in +.020, +.040 & +.060 sizes,...
These Swiftune die cast performance pistons are part of their new Heritage range and are manufactured by global leading German F1 piston manufacturer Mahle. These pistons have been developed using their 50 plus years of experience.
Glyn Swif...
Steel ring set with 3 piece oil rings as preferred by engine builders for P21253 pistons.
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 1980o...
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 ...
Standard Size with 0.59" compression rings and 0.1181" oil ring for 998cc
4mm oil ring. These rings fit the current replacement pistons from AE Hepolite range 21250 and 21251 low drag slipper type with 8.1 cc dish and only piston 21251 is now available 8.8CR.
Rover piston TAM2048 stamped 21962 with ring sizes 1.50...
Low drag 1275 piston standard size 2.780 plus 20 thou oversize(Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990.
The best performance 1275 pistons are C-STN100 range which have 9.7...
Rover piston TAM2048 stamped 21962 with ring sizes 1.501mm and oil ring 4mm but some pistons have been stamped 21963.
-Does this get confusing?
So lets clear it up; the easy way to identify the piston and corrrect rings are as follo...
Available at the moment but they sporadically become unavailable. Mini Spares have also had a batch of plus 60s specially commissioned to us for Grass trackers and racers. sold individually with rings and pin complete.
Ringsets are availabl...
998cc dished circlip type piston with 4 rings answer. Compression range of 8.3 to 9:1 depending on block and head but for best performance use later 3 ring flat top piston ADU3490-00. Sold singly,4 per engine required
Low drag 1275 piston standard size 2.780 plus 60 thou oversize (Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990. The engine then becomes 1328cc
The best performance 1275 pistons a...
3mm OIL RING with compression ring size .0591" (1.5mm)and one piece oil ring .1181" (3mm)on p21253 pistons giving 9.7cr on 1275cc. 40 thou oversize
For performance see steel ring set with 3 piece oil ring as favoured by engine builders[link]...
This piston for 1098cc engines was designed with 4 rings. The top three compression rings are .0625" thick and the bottom oil ring is .1575" thick. Pin height in this piston design is 2.2855", this results in a compression of 8.5:1 in most standard ...
Low drag 1275 piston standard size 2.780 plus 40 thou oversize(Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990.Engine then becomes 1310cc
Current pistons differ from the 60s origi...
40 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 pre 1984 Metro versions it was higher.
Current...
AE Hepolite +20 Engine set of rings for C-AJJ3378/20 C-AJJ3382-60 Mega and Omega pistons when rings are 0.0470"(1.2mm) and 0.1575" 4mm oil rings.
For latest spec race quality NPR rings see C-STN102-20
These are suitable for press fit gudgeon pin late type 998 con rods.
sold individually with rings and pin complete
Ringsets are available as R43240-20
Original equipment quality for factory built engines giving longer life expectancy on road cars under variable conditions of oil and use. These are the 1275cc mains as fitted to A Plus engines with the locating tab in the middle rather than to the ou...
AC Dodd Road Torque cam, great for low end power. Please see picture for full cam specs.
Road torque, this cam for strong low & mid range lugging, Touring, Smooth idle, excellent emmisions
ACD - RT
Power...
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