BMW Z4 20i G29 163/197hp B48B20B 2018-

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BMW Z4 20i G29 163/197hp B48B20B 2018-

BMW Z4 20i G29 163/197hp B48B20B 2018-

BMW Z4 20i G29 163/197hp B48B20B 2018- 

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BMW Z4 20i G29 163/197hp B48B20B 2018-

The Z4 20i G29 runs the B48B20B, BMW's modular 2.0 16V turbo four-cylinder, rated at 163 and 197hp in this roadster.

The rotating assembly is the core of this page: forged JE PISTONS, WÖSSNER and SUPERTECH pistons from 82 to 83mm bore, 9.5:1 to 11:1, with a 22mm gudgeon pin and a 33.2mm compression height; forged 4340 steel ZRP and BOOSTLINE connecting rods supplied with ARP2000, L19 or CA625+ bolts; tri-metal ACL RACE big end bearings in standard size, HX extra clearance, +0.025 and +0.25mm.

SUPERTECH covers the cylinder head: standard size valves, springs with retainers, valve stem seals and 5 and 6mm collets.