M20 2.5L Mahle Piston Set This is a stock replacement

This is a stock replacement for the M20B25 engine

Set of 12 OE BMW rocker arm eccentrics for M30 engines

Please choose early or late model depending on the year that your engine block was manufactured

Your core head and camshaft will be put through our inspection and testing processes and if they pass

that spring may allow the rocker to move in relation to the valve stem (sometimes enough to walk off the valve stem) which quickly results in a broken rocker arm

M20 2.5L Mahle Piston Set This is a stock replacementMahle 84. 5mm (oversize) piston set with 8. 8: 1 compression. This is a stock replacement for the M20B25 engine. Piston sets include piston rings, wrist pins, and wrist pin clips. These are the same pistons we use in house for our stock M20B25 engine builds and SpecE30 engine builds.