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S54 3.4L Race Engine Rebuild

$24,999.00$32,998.00

The CARBAHN Autoworks S54 3.4L race engine rebuild is balanced and blueprinted; it features a 93mm stroker crankshaft, CP centered-pin low-friction forged pistons, Carrillo forged connecting rods, and a racing Multi-Layer Steel (MLS) head gasket. Compression is raised to 12.5:1, and the increase in bore and stroke enlarges displacement to 3393cc.

The engine has racing camshafts with very high lift and duration, DLC-coated followers, and racing valve springs with titanium retainers. Billet aluminum collets are utilized to control rocker arm movement at high RPM.

Our S54 is much more durable than most 3.4L liter S54s because the low profile 2-ring piston enables us to make the rod longer. This increased rod length reduces side load on the piston, and the reduced side load as well as the dry sump system dramatically increase power and durability.

Note: This engine requires a dry sump system.

*Note – Core charge may apply. Contact us for details.

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Description

Steve Dinan has been building high performance and racing engines for BMW’s since 1977, winning 11 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.

 

The CARBAHN Autoworks S54 3.4L race engine rebuild is balanced and blueprinted; it features a 93mm stroker crankshaft, CP centered-pin low-friction forged pistons, Carrillo forged connecting rods, and a racing Multi-Layer Steel (MLS) head gasket. Compression is raised to 12.5:1, and the increase in bore and stroke enlarges displacement to 3393cc.

The engine has racing camshafts with very high lift and duration, DLC-coated followers, and racing valve springs with titanium retainers. Billet aluminum collets are utilized to control rocker arm movement at high RPM.

Our S54 is much more durable than most 3.4L liter S54s because the low profile 2-ring piston enables us to make the rod longer. This increased rod length reduces side load on the piston, and the reduced side load as well as the dry sump system dramatically increase power and durability.

Refer to the graphs below for the power results without catalytic converters on 100 octane race gas and using J607 (the typical aftermarket correction).

 

Note: This engine requires a dry sump system such as the CARBAHN Autoworks Dailey Engineering dry sump shown in photos. Dry sump kit sold separately. Wet sump engine shown in photo is for display purposes only.

 

S54 3.4L Dry Sump with race cams:

RPMTRQHP
3500214.1142.7
4000267.8204.0
4500296.5254.0
5000312.2297.2
5500313.1327.9
5900315.8354.8
6000314.2358.9
6500312.7387.0
7000310.0413.2
7500308.5440.5
8000294.7448.9
8200288.5450.4

No cats, 100 octane unleaded, J607

 

Additional information

Engine Options

Engine Rebuild, Add S54 Dry Sump Kit [+7,999]

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David Kim - High Performance Specialist     (650) 495-0421 Contact David Kim