BMW B58 Engine Rebuilding & Repairing Services

Performance Rebuilt, Reliability Secured

Looking to restore or upgrade your B58 engine? Palenon Performance's rebuild services are designed to meet your needs—whether you're after a reliable stock refresh or chasing 1200+ whp. We use high-quality components, precision machining, and proven assembly practices to bring your engine back stronger than ever.

From OEM-style rebuilds to full forged performance setups, we offer flexible options to match your goals, budget, and power expectations. Every build keeps the original engine block for perfect fitment and smooth integration—ideal for daily drivers or high-performance builds alike.

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

Explore our B58 rebuild options below and build with confidence.

Stock B58 Rebuild

Short Block – $5,750

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

Parts List:

  • - Main bearings
  • - Rod bearings
  • - Piston rings
  • - Machine work
  • - Misc
  • - Rod bolts
  • - 14 ASA crank bolt set

Long Block – $7,900

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

Parts List:

  • - OEM front crank seal
  • - OEM rear crank seal
  • - Injector seals
  • - Valve cover gasket
  • - Misc
  • - Head bolts
  • - OEM head gasket
  • - Windage tray bolts

1200+whp Rebuild

Short Block – $10,900

Specifications:

  • - Fully built 8-bolt shortblock (1200+ 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

Parts List:

  • - Forged CP Carrillo pistons
  • - Forged CP Carrillo rods
  • - Machine work
  • - 14 ASA crank bolt set
  • - Main bearings
  • - Rod bearings

Long Block – $12,900

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

Parts List:

  • - Oil pump seal
  • - OEM front crank seal
  • - OEM rear crank seal
  • - Injector seals
  • - Valve cover gasket
  • - Misc
  • - ARP 625+ head studs
  • - OEM head gasket
  • - Timing chain/guide kit
  • - ARP girdle, windage tray/oil pump bolt kit

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

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