PISTON SET 998 FLAT TOP CIRCLIP TYPE +40 OVERSIZE
ADU3490-40

(¥152) £152.00 exc vat

(¥182) £182.40 inc vat

In stockIn stock
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...

(¥152) £152.00 exc vat

(¥182) £182.40 inc vat

In stockIn stock

Recommended usage 1 x ADU3490-40 to fit one mini.

People also bought products

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...

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...

998cc flat top 3 ring circlip type piston set as fitted to early A plus to replace 4 ring set type. Gave 10.3 to 1 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 198...

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...

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...

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...

3 OF 0.625 COMPRESSION RINGS AND .1575 OIL CONTROL RING.AT PLUS 40 OVERSIZE FOR P20773 pistons

These rings are +20 oversize with 0.59" compression rings and 0.1181" oil ring fo 998cc

These Piston rings are +40 oversize with 0.59" compression rings and 0.1181" oil ring fo 998cc

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...

Crankshaft washers for crankshaft at 3 thou oversize on each one

sold as a set of four for 998 and 1100cc.

Replace with new camshaft,it's almost too easy to overlook during a rebuild. Camshaft bearings are pressed into the block and thus are usually done by a machine shop. You would not rebuild an engine without replacing the rod bearings, so why not the ...

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).