PISTON SINGLE 998cc FLAT TOP +20 HIGH SILICON
P20950-20

£35.44 exc vat

£42.53 inc vat

Out of stockOut of stock
Owing to non-availability of other good quality 998cc pistons, these Mini Spares Evolution design pistons from a renowned high-performance piston manufacturer are flat top with drilled oil drain-back holes rather than slots behind the rings for maxim...

£35.44 exc vat

£42.53 inc vat

Out of stockOut of stock

Block Components & Pistons - Qty 1

Alternative products

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

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...

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Owing to non-availability of other good quality 998cc pistons, these Mini Spares Evolution design pistons from a renowned high-performance piston manufacturer are flat top with drilled oil drain-back holes rather than slots behind the rings for maxim...

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

Rod bearings, 850-1275 1 5/8" journals. Heavy duty steel backed bearing for durability and long life. Vandervell, once the only bearings to use on a competition motor they are now made by Mahle. ACL is now commonly used in race engines.

Mahle was Vandervell bearings 1.064" 27.05mm wide mains for the late 850cc plus all 997/998/1100cc at 10 thou oversize. Early 850 mains were VP592 and 1.185" 30.10mm wide.

Mahle was Vandervell bearings 1.064" 27.05mm wide mains for the late 850cc plus all 997/998/1100cc at standard size. Early 850 mains were VP592 and 1.185" 30.10mm wide..Quantity required-1 set.

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 ...

There are 3 of these bolts fitted -1.75"long 5/16"UNF bolt ALTERNATIVE DAM7758.

Also used as longer bolt for water pump.

Also for the 21A1091 heavy duty tie rods on front suspension.

Set of 8, original leyland ST product but now made for us to our specification. Critical to the life and performance of the camshaft is the use of high quality cam followers. Remember, they operate in a finite hole and thus the dimensional tolerances...

Main bearings for the crankshaft as preferred by performance engine builders 30 thou oversize pre 1985

Sintered copper lead, lead plated,steel backed

Nominal Composition

Copper 74%

Lead 24%

Tin ...

ACL Main bearings for the crankshaft as preferred by performance engine builders 10 thou oversize pre 1985



Sintered copper lead, lead plated,steel backed

Nominal Composition

Copper 74%

Lead 24%

Converted into a non melting type grease.Favoured by proffessionals for camshaft,lobes and lifter,and any valvetrain to stop scuffing on start up. Also useful for oil pumps to stop drain back on start up

Probably the most used jointing compound used by mini owners for nearly every gasket except the cylinder head. Some late minis used a silicone jointing compound instead of gaskets on the differential, see GAC8000.

Standard size crankshaft washers as a set of four, fits 998 and 1100cc.

Lightened cam gear duplex timing gear and chain set. Not recommended for race/rally applications. approx 69-70g 9% lighter

General: Camshaft Drive Systems


For highly tuned engines always use steel duplex as cast is nowhere as st...

Genuine Mini Spares Original black timing cover oil seal for all A series until the introduction of a new type of lip seal introduced in 1991 mainly for injection engines, when they changed to LUF10006--albeit many owners fit this not kn...

ACL Main bearings for the crankshaft as preferred by performance engine builders plus 20 thou oversize pre 1985

Sintered copper lead, lead plated,steel backed

Nominal Composition

Copper 74%

Lead 24%

A plus bearings have a centre locating indent whereas the earlier blocks had the locating area on the side- These are A plus 10 thou oversize.

Fitted from about 1984 on

VP suffix bearings are made by Mahle with lead indium content f...

Standard weight, 44.00grams, follower with oil drain hole. Always check for wear and replace whenever a new camshaft is fitted. These are manufactured by the supplier to AE Hepolite the original engine components manufacturer and should be coated wit...

Original short pin drive oil pump for all Pre A Plus minis with 850/998/1100cc engines except autos and others with star drive or the later slot drive pumps as found on A Plus blocks.

MD266 in A plus form with cam followers.valve springs and initial set up oil.



For timing disc, order separately as C-AJP337



As of July 2007 Kent cams have no supply of old camshafts for reprofiling a...