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. 60 thou oversize
Rover piston were stamped 21963 for high compression but 21962 seems to be stampe...
These rings are +20 oversize with 0.59" compression rings and 0.1181" oil ring fo 998cc
For the ultimate in 1275cc overbored engine performance, double heat treated pistons. You can't beat cubic inches for performance, and the A-Series block can be bored far bigger than the factory ever imagined. The standard bore is 70.6mm, the 1380 bo...
0.625"(1.59mm)compression ring and 1/8"(3.175mm) single one piece oil control ring.
Also available is a high grade ring set C-STN99-40 with 3 piece oil ringfor these pre 1979 type pistons
A must if you want to run a mechanical oil gauge and retain the oil warning switch. Screws straight into the block on all A series engines.
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 ...
NPR Ring set for 73.5mm Mega and Omega pistons with 1.2mm thick rings and 3 piece oil rings-also for new range of EVO pistons C-STN101
Genuine Mini Spares Klinger timing chain gasket for any BMC A series engine with 10 gasket holes, fitted until the introduction of the A plus type which had a bulge in its side where the tensioner was fitted which had 11 holes.
The klinger m...
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...
This kit includes a new oil galery plug with an adjustable knob and a washer which is used as a spring seat in the plug against the relief spring. This makes a playform for the adjuster bolt to adjust the engine oil pressure. Winding the knob in incr...
Absolutely prevents the engine from rocking! These should NEVER be used on a street car BUT it could also be said that every serious race car should have them. Our newest design includes captive nuts for ease of installation.
sold ...
Nitrided, forged 86mm stroke, 1.625" "S" big end journal for non-S 1275/1300 block with stronger keyway for timing gears fitted.
Forged EN40B steel nitrided Race cranks are considered the ultimate in specification, even over the "billet" typ...
Woodruff key for the end of the crankshaft to locate the lower timing chain gear and WKN505 is for the camshaft key to hold the larger timing gear.
Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...
RING SET FOR 1275 +.020 4-RING PISTON. RING THICKNESS .0625" and 0.1562" oil ring..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 usual...
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
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" oil ring 0.125 as per original 998 pre A plus and 1098cc versions inc morris minor and sprite range.
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