PARTEE RACING
BMW S65 ENGINE BUILDS

The BMW S65 engine, renowned for its high-revving V8 performance in the E9x M3 series, combines exceptional power with race-inspired engineering. At Partee Racing, we specialize in comprehensive S65 engine rebuilds, addressing the platform’s known reliability issues while enhancing performance. Our rebuilt S65 BMW engines feature upgraded rod bearings, meticulously balanced rotating assemblies, and precision machined engine blocks to ensure longevity far beyond factory specifications. Whether you’re seeking a stock replacement S65 engine for sale or a built S65 engine capable of handling increased power demands, our crate engine options deliver exceptional value.

OUR ENGINES

BMW S65 “Better Than Stock” Longblock - Budget Version

Engineered Excellence, Street-Smart Value

This rebuild delivers impressive street performance while improving reliability for daily driving. Perfect for enthusiasts seeking premium street performance at a budget-friendly price. With key improvements to the factory long block, it delivers a smoother, faster, and higher-revving experience that pushes the S65 beyond its stock limitations.

  • Upgraded Mahle 4032 pistons to minimize engine noise and oil consumption
  • Upgraded Connecting Rods
  • All one-time use stretch bolts, tensioners, guides, chains, gaskets, and other consumables are replaced with authentic BMW parts
  • Delivers 10-15 WHP gain over stock engine

BMW S65 “Better Than Stock” Longblock - High End Version

Race-Ready Performance

Engineered for performance minded drivers, the High End version of our S65 features increased compression and reinforced internals to maximize durability under extreme track conditions.

  • Upgraded internals includes JE 2618 alloy pistons, Carrillo rods, and race-tested BMW S62 rings.
  • Re-exposed Alusil Cylinder Walls to enhance engine durability and performance
  • All one-time use stretch bolts, tensioners, guides, chains, gaskets, and other consumables are replaced with authentic BMW parts
  • Tuned for 400+ WHP

BMW S65 4.6L Stroker Longblock

Maximum Displacement, Ultimate Power

Following the successful formula of our S85 stroker, we increased the displacement of the S65 and coupled it with more aggressive camshafts.

  • Includes all of the upgrades of High End version
  • Displacement increased to 4.6L
  • Ported heads, upgraded valve train, and Schrick 292 duration camshafts
  • Arrow Billet 82.7mm crankshaft
  • Tuned for 400+ WHP

FREQUENTLY ASKED QUESTIONS

HOW MUCH DOES A BMW S65 ENGINE REBUILD COST?

Our BMW S65 engine rebuilds cost between $17,500 and $30,500, depending on the model you select, plus other upgrades & services. Submit an inquiry for the model you’re interested in for a detailed quote or contact us for more general questions.

CAN I CUSTOMIZE MY S65 REBUILD?

Absolutely! We offer a range of performance upgrades, including camshafts, ported heads, and custom tuning. Let us know your goals, and we’ll tailor your S65 build to meet your needs.

HOW LONG DOES IT TAKE TO COMPLETELY REBUILD A BMW S65 ENGINE?

Our BMW S65 engine rebuilds take between 3 and 6 months to complete from the time we receive your engine. Lead time can be impacted by the level of restoration chosen, availability of parts, and demand for similar items.

DOES THE BMW S65 ENGINE REBUILD INCLUDE ALL REQUIRED PARTS?

Yes, the BMW S65 engine rebuild includes all essential components and services. However, the price does not include the $4,500 core charge. Please refer to our Core Policy for details.

DO I NEED TO SEND MY ENGINE TO YOU?

You can send us your BMW S54 engine for rebuilding, or we can remove and install it at our facility. Installation services are available for an additional cost.

IS THERE AN ENGINE CORE CHARGE?

Yes, the $4,500 core charge ensures we receive a rebuildable S65 engine core in return. If you send us your engine core in acceptable condition, the charge will be refunded. See our Core Policy for details.

DO YOU SHIP REBUILT ENGINES?

Yes, we can ship rebuilt S65 engines worldwide. Shipping costs vary depending on your location and engine specifications. Contact us for a shipping quote.