M20 stroker set up for sale. None of it was run together, the spacer and bolt are both brand new and the crank and rods are in good shape.
It is made up of an M52 crank w/ correct S52 crank bolt and 130mm “e” rods, and a crank spacer from member der affe. The cost of the stroker is $400+shipping anywhere in North America. It will net a displacement of 2.8L and compression ratio of:
-9.4:1 if you use the BMW head gasket
-9.8:1 with BMW gasket and deck the block 0.5mm


Just to clarify, I got a question on the pistons you use for this kit. You can use stock M20b25 pistons. They will put you 0.5mm short of the top of the block. The M52 crank is 42mm per side - 4.5 mm longer than a b25 stroke - and the b27 rods are 5mm shorter than the b25.
It is made up of an M52 crank w/ correct S52 crank bolt and 130mm “e” rods, and a crank spacer from member der affe. The cost of the stroker is $400+shipping anywhere in North America. It will net a displacement of 2.8L and compression ratio of:
-9.4:1 if you use the BMW head gasket
-9.8:1 with BMW gasket and deck the block 0.5mm


Just to clarify, I got a question on the pistons you use for this kit. You can use stock M20b25 pistons. They will put you 0.5mm short of the top of the block. The M52 crank is 42mm per side - 4.5 mm longer than a b25 stroke - and the b27 rods are 5mm shorter than the b25.
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