BMW M235i F22/F87 326hp N55B30 2013-2016

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BMW M235i F22/F87 326hp N55B30 2013-2016

BMW M235i F22/F87 326hp N55B30 2013-2016

BMW M235i F22/F87 326hp N55B30 2013-2016 

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BMW M235i F22/F87 326hp N55B30 2013-2016

The N55B30 six cylinder of the BMW M235i F22/F87 is covered here across every family of internal parts.

Forged connecting rods come from ZRP and MANLEY, forged pistons from JE, MANLEY, WÖSSNER and DIAMOND in 84 to 85mm bore, compression ratios of 9.0:1 to 10.5:1 and a 22mm gudgeon pin. Tri-metal bearings from ACL RACE and KING RACING are listed for both the big ends and the main journals. The head takes SUPERTECH and FERREA performance valves, SUPERTECH, FERREA and CATCAMS springs, stem seals and collets. The ATHENA and COMETIC head gasket and the DINAN air filter are specific to the N55B30.