Identifying Pistons

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GraemeC
1275 Cooper S
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Identifying Pistons

Post by GraemeC »

Just whipped the head off an engine I'm about to rebuild and don't recognise the pistons. They are marked ID3 P05 and STD, the bores seem to measure 73.5mm.

Anyone know what they are? Need to buy some rings!
surf-blue-850
850 Super
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Re: Identifying Pistons

Post by surf-blue-850 »

Would say they're AE 20659KR pistons at standard size, the rings you'll need are R39390

It's a 1380 btw
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smithyrc30
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Re: Identifying Pistons

Post by smithyrc30 »

surf-blue-850 wrote:.....It's a 1380 btw
Only if it is fitted with a standard 1275 crank... :geek: :D
surf-blue-850
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Re: Identifying Pistons

Post by surf-blue-850 »

Yes of course :D making an assumption :oops:
GraemeC
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Re: Identifying Pistons

Post by GraemeC »

Yes, should've updated this. Having got them out of the block they are AE/powermax with 7cc dish
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