S65 4.5L Stroked and Bored Supercharger/Turbocharger Engine

Part Number: CB165-6001 Category:


The CarBahn Autoworks S65 4.5L stroked and bored engine is built features high performance over-sized forged 92.5mm pistons, billet 83mm stroke crankshaft, and high-strength forged Carrillo connecting rods with CarBahn-Clevite racing rod bearings.

To facilitate more boost, the engine has been re-engineered to be a forced induction engine with lower compression, more crown height to dissipate heat, thicker rings, and stronger connecting rods. The kit can be purchased in 3 compression ratios: 10:0-1, 10.5-1, and 11:0-1.

Additional Information

This complete rebuild that increases power and improves durability with Clevite-CarBahn racing rod bearings, CarBahn Autoworks valve springs, an MLS (Multi-Layer Steel) head gasket, a valve job with new hydraulic lifters, plus timing chains, timing chain guides, timing chain tensioners and all associated seals and gaskets.


Steve Dinan has been building high performance and racing engines for BMW s since 1977, winning 12 racing championships including 3 prototype championships and two 24 Hours of Daytona. The same engine shop that builds the racing engines also builds the street car engines; these talented engineers, machinists, and builders have built hundreds of engines from OEM street rebuilds to full-blown racing engines.

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