£70.32 exc vat
£84.38 inc vat
In stock
For performance see steel ring set with 3 piece oil ring as favoured by engine buildersC1818.020
Rover piston were stamped 21963 for high compression but 21962 seems to be stamped on some Metros pistons or overseas cars from customers claims.
Rover piston high compression 21963 and AE replacement was 21253 and the latest number for AE Nural is 87-524100---Does this get confusing?
So lets clear it up; the easy way to identify the piston and corrrect rings are as follows-they are made from the same piston slug with same dish but the high compression version is easily identified by the lower oil ring being 3mm wide and the top ring gap to the crown is 10mm deep.
The low compression version has 4mm oil ring and a shorter length top ring gap of about 7mm to the crown/top. The gudgeon pin is moved on production to give the higher compression ratio and lowering the rings giving a larger top ring land for strength. Rings for 3mm lower oil ring type are R41570.
if you have 4mm oil ring use R35960-20
£70.32 exc vat
£84.38 inc vat
In stockRecommended usage 1 x R41570-20 to fit one mini.
steeel ring set with 3 piece oil rings as preferred by engine builders for P21253 pistons
Steel ring set,for 4 ring pistons. 3 compression rings @ 0.0625" oil rings 0.125 as per original 998 pre A plus and 1098cc versions inc morris minor and sprite range.
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 (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 9.73cr when the piston i...
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. std ring size
For performance see steel ring set with 3 piece oil ring as favoured by engine builders[link]C1...
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...
RING SET FOR 1275 STD. 4-RING PISTON. RING THICKNESS .0625 and 0.1562" oil rings.For later piston 19320 with 2 rings and an oil ring with the same ring sizes- keep the third ring as your second ring which should be of an oil scraper type, and usually...
3 compression ring @ 0.625" oil ring 0.125 as per original 998 pre A plus and 1098cc versions inc morris minor and sprite range.
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]...
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...
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).
You should replace the camshaft bearings every time the block goes to the machine shop. These bearings fit all late model 1275cc blocks (the ones without tappet covers on the back) It's almost too simple and thus often overlooked during a rebuild. Ca...
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?
...
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?
...
Race quality heavy duty double row performance endless timing chain. It is the best chain available and used by top engine builders, also fits MGB/Midget. This chain is for duplex gears that is used by racers as a limited stretch heavy duty version m...
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...
These shouldered hexagonal con rod nuts are made by ARP in the USA and considered the best available FITS 1300 con rods plus MGB late 18V engine numbers with 11-32" bolts.Sold singly and 8 required per engine.
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