If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand (New AE Brand), circlip type.
If you want to go faster, keeping that 948cc block, Big bore is the best answer; boring to over 1000cc will yield a very noticable improvement! The stock bore size on a 948 is 2.4775, our big bore piston set allows a 2.582" bore.
For the small bore (998cc) owner: If you are trying for max horsepower with great longevity, these 4-ring dished pistons could be the best answer. Compression range of 9:1 with a total displacement of 998cc will make you and your motor feel great!
Classic Austin Mini Cooper 998 +40 Dished Piston With Rings EachClassic Austin Mini Cooper 998 +40 Dished Piston With Rings EachClassic Austin Mini Cooper 998 +40 Dished Piston With Rings EachClassic Austin Mini Cooper 998 +40 Dished Piston With Rings Each
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
Looking to purchase these for my 59 Bugeye. A couple of questions:
- What size is the required bore for these pistons?
- Can I retain the stock 948 connecting rods?
- Are there any other modifications required to run with these?
- Are there any suggested modifications?
Answer:
Going from the 948 to the 998 +.020" should be fine. The 948cc piston is 2.4775", the 998cc pistons are 2.5420" and 998cc +.020 =2.562". The rods are the same, the pin height for both pistons is the same (1.342").
The change represents taking a 948 block and boring it +.0845" over (from standard).
We would suggest getting larger valves in the head to take advantage of the larger displacement. If you could find a 12G206 or 12G295 head - those have larger intake valves - or just go to the large intake valves in your head. That plus more of a street camshaft and maybe a header and exhaust and you'd be good to go.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. AE brand, circlip type.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand (New AE Brand), circlip type.
We offer many pistons options for the Classic Mini as built from 1959 t 2000. Standard bore. Various designs and size pistons options for 998cc, 1275cc & 1380cc engines. High or low compression options includes rings and pins.
The following chart shows the SAE recommended Automotive compression ring end gaps. These recommendations are followed for the majority of the ring line unless a certain application requires deviation from the chart.
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