Guys i desparately need a set of flat tops in 73mm. Does anybody know of someone making these, or where I can go to have these made up. Am struggling to get the right comp ratio for what I need.
I cant machine down a set of hypatecs enough unless I take heaps off the block as the crank is de-stroked, so I need flat tops.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

So you can't skim the head enough either? I had two mm shaved off my head and it still had enough meat to use.

Can you get a longer rod and just run the normal pistons, longer rods would suit the revvy nature of a de stroked motor, last time I asked Argo would do custom length rods but finding the right pistons would be a cheaper option I suppose.

Despite popular (incorrect) belief, Omega still make them and in a variety of crown heights just for a delima such as yours.

There is also JP Engineering in Adelaide, however while good, they are not a competion piston.

Look too at Honda Jazz and Mazda Capella pistons.

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Thanks will try Omega. i cant skim the head any more. Head is very well worked and down to 18cc chamber.
G.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car

How about the Mazda Pistons that I use ? I have some new and some second if you want to have a look at them. From original form the only mod needed to fit these to the rod is a little honing of the gudgeon pin hole. Great Jap piston. They are slightly shorter in deck height though and I always used these in 84mm strokers. All depends on the block decking too. Available in 73, 73.5, 74, and 74.5 mm.

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DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"

They may be something I can use. Any idea of height pinion to crown??, and the top ring land thickness, in case I need to machine them. I am running a short stroke 80mm and currently the block isnt far off standard deck height. The Hypatec's are perfect fit and height if only they were flat-tops. I appreciate your assistance. G.

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1970 Cooper S ex-Bathurst & ATCC
1964 Austin Cooper S ex-Group C race car
1967 Morris Cooper S ex-Group B
1962 Mini Speed sports sedan
1968-71 ex-Peter Manton Shell car