PISTON SET 998 HC CIRCLIP TYPE +20 OVERSIZE
ADU3490-20

£152.00 exc vat

£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...

£152.00 exc vat

£182.40 inc vat

In stockIn stock

Recommended usage 1 x ADU3490-20 to fit one mini.

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Circlip type pin and 4 ring type (3 rings and a scraper)998cc mini--last single piston.

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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 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...

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...

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.

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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...

20 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...

3 compression ring @ 0.625" and single one piece oil ring 0.125 as per original 998 pre A plus and 1098cc versions inc morris minor and sprite range. Also available is a high grade ring set c-STN99-20 with 3 piece oil ring

3 OF 0.625 COMPRESSION RINGS AND .1575 OIL CONTROL RING.

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

3 OF 0.625 COMPRESSION RINGS AND .1575 OIL CONTROL RING.for P20773 pistons

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...

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

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