Methanol pistons

[jay760]

Just had a pair of pistons come with their barrels so definitely from an xs, standard xs piston by the side for comparison, but not the same way around, they are for 533 rods, made by Mahle pistons in Germany, 80mm bore, no lip around the edge but are tapered on an angle and when mated to the head will just about completely fill it,

anybody have any ideas what compression these might be, I'm guessing they would have to be run on methanol, or some serious octane booster,

 

[yamaman]

No idea Jay, could they need the barrels raised? Thick base and head gaskets, stroker? Shitloads : 1 lol

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