BMW N54 Engine Rebuilding & Repairing Services

At our Palenon Performance shop, we specialize in precision-built BMW N54 engines. Whether you’re looking for a stock rebuild, a high-performance 900whp build, or a fully reinforced 1000+whp setup, our builds are designed for strength, reliability, and performance.

Each engine is assembled with industry-leading components, premium machine work, and meticulous attention to detail. All engines are 100% backed for quality and workmanship.

The N54 engine is known for strong performance, but over time it may need n54 engine repair or even a full rebuild. Many owners choose a bmw n54 turbo rebuild to fix boost issues and restore power. The n54 engine rebuild cost depends on damage and parts required, especially for high-performance setups. For maximum reliability and power gains, a bmw n54 performance rebuild offers upgraded components designed to handle more boost and improved engine durability.

Experience expert craftsmanship in your next engine build—hand-assembled by Scott Martin.

Fitment

• BMW 335i (N54)
• BMW 135i
• BMW 535i (N54)
• BMW 1M Coupe
• BMW Z4 35i / 35is
• Any BMW with the N54 twin-turbo engine

Features of Our N54 Engine Rebuild

• OEM or forged performance parts
• Precision machine work
• Fully balanced rotating assembly
• Updated crank hub options
• 100% in-house assembly
• Built for 450–1000+ whp
• Enhanced reliability under high boost
• Professional short block & long block options

Stock N54 Rebuild

Short Block – $3,750

Specifications:

• - Stock: pistons and rods fully reusable
• - Block: cleaned, decked, honed
• - Machined with torque plate, measured, and in-spec
• - Crankshaft polished
• - All new piston rings (properly gapped to fix OEM issue)
• - All new King bearings
• - All new bolts
• - Machine work performed by one of the top shops in the nation

N54 Engine Rebuild Parts:

• - Ring set
• - Machine work
• - Misc
• - Bolts, bearings, rod bolts

Long Block – $4,750

Specifications:

Includes all Short Block work, plus

• - New OEM head bolts
• - New updated crank hub
• - Brand new OEM head gasket
• - All new gaskets and seals
• - Full assembly from valve cover to oil pan

N54 Engine Rebuild Parts:

• - Rear main seal
• - OEM front main seal
• - Valve cover gasket
• - Oil pan gasket
• - OEM head gasket
• - OEM crank hub bolt
• - OEM updated crank hub assembly
• - Oil pan bolt set
• - Oil pump bolt set
• - HPFP oring
• - Head bolt kit
• - Vacuum pump gasket/seal
• - Vacuum cover
• - Injector decouplers/seals

Stage 2 – 900whp Reuild

Short Block – $6,500

Specifications:

• - Manley forged 84.50mm pistons
• - Manley forged H-beam rods
• - ARP 2000 rod bolts
• - Upgraded head studs (4 corners to 11mm with NS300L inserts)
• - Crankshaft 2-pinned for Insane 1-piece crank hub
• - Block: cleaned, decked, honed
• - Machined with torque plate, measured, and in spec
• - Crankshaft polished
• - All new King bearings and bolts
• - Precision machine work by industry experts

N54 Engine Rebuild Parts:

• - Rods/pistons
• - Machine work
• - Misc
• - Bolts and bearings
• - Inserts

Long Block – $9,900

Specifications:

Includes all Short Block work, plus

• - New ARP head studs (all 11mm)
• - New one-piece Insane crank hub
• - Brand new OEM head gasket
• - All new gaskets and seals
• - New timing chain and guides
• - New oil pump chain and guides
• - Head drilled for larger corner studs
• - Full assembly from valve cover to oil pan

N54 Engine Rebuild Parts:

• - Rear main seal
• - OEM front main seal
• - Valve cover gasket
• - Oil pan gasket
• - OEM head gasket
• - Insane 1-piece crank hub
• - Oil pan bolt set
• - Oil pump bolt set
• - HPFP oring
• - Head stud kit
• - Vacuum pump gasket/seal
• - Vacuum cover
• - Timing chain/guide kit
• - Oil pump guide/chain kit
• - Injector decouplers/seals

Stage 3 – 1000+whp Rebuild

Short Block – $7,750

Specifications:

• - Fully built 8-bolt N54 shortblock (1000+ hp rated)
• - Manley forged 84.50mm pistons
• - Manley forged H-beam rods
• - ARP 2000 rod bolts
• - Epoxy closed deck reinforcement
• - Upgraded head studs (4 corners to 11mm with NS300L inserts)
• - Crankshaft 2-pinned for Insane 1-piece crank hub
• - Block: cleaned, decked, honed
• - Machined with torque plate, measured, and in-spec
• - Crankshaft polished
• - All new King bearings and bolts
• - OEM twin-turbo coolant passages remain usable

N54 Engine Rebuild Parts:

• - Rods/pistons
• - Machine work
• - Misc
• - Bolts and bearings
• - Inserts
• - Epoxy

Long Block – $10,900

Specification:

Includes all Short Block work, plus

• - New ARP head studs (all 11mm)
• - New one-piece Insane crank hub
• - Brand new OEM head gasket
• - All new gaskets and seals
• - New timing chain and guides
• - New oil pump chain and guides
• - Head drilled for larger corner studs
• - Full assembly from valve cover to oil pan

N54 Engine Rebuild Parts:

• - Rear main seal
• - OEM front main seal
• - Valve cover gasket
• - Oil pan gasket
• - OEM head gasket
• - Insane 1-piece crank hub
• - Oil pan bolt set
• - Oil pump bolt set
• - HPFP oring
• - Head stud kit
• - Vacuum pump gasket/seal
• - Vacuum cover
• - Timing chain/guide kit
• - Oil pump guide/chain kit
• - Injector decouplers/seals

Thank you for your understanding and cooperation. 🤟🏻👇🏻