S58 ENGINE BUILDS

WHAT STAGE IS RIGHT FOR YOU?

Every stage starts with a fully forged build. Each step up adds real machine work and hardware, not just a bigger number.

STAGE 1

1,000WHP

Entry-level forged build

  • Forged connecting rods and pistons
  • Stock intake/exhaust valves
  • Standard ARP head studs
  • KLM-spec bearings, seals & hardware

$12,999.99

Shop Stage 1

STAGE 2

1,200WHP

Track use, higher power ceiling

  • Forged rods/pistons, revised higher-rated spec
  • Upgraded intake and exhaust valves
  • Oversized ARP head studs
  • KLM-spec bearings, seals & hardware

$17,799.99

Shop Stage 2

STAGE 3

1,300WHP

Track and drag focused

  • Forged rods/pistons, revised higher-rated spec
  • Upgraded intake and exhaust valves
  • Oversized ARP head studs
  • 5-axis CNC-ported cylinder heads
  • KLM-spec head modifications

$20,999.99

Shop Stage 3

STAGE 4

1,500+WHP

Max-effort drag/race

  • Stroker kit for increased displacement
  • Includes forged connecting rods and pistons
  • Upgraded intake and exhaust valves
  • Oversized ARP head studs
  • 5-axis CNC-ported cylinder heads
  • KLM-spec head modifications

$27,499.99

Shop Stage 4

STAGE 5 SAVAGE

1,800WHP

World record spec: quickest and fastest BMW, 7.513 @ 193.74 MPH

  • Full Stage 4 spec plus:
  • KLM billet main caps
  • ARP 625 main studs
  • ARP 625 Oversized head studs
  • Billet Crankshaft
  • Extreme Fire-Lock Head Gasket
  • Anti Slip Cam Gear Upgrade
  • HD sleeves included
  • Billet head dowels

$35,499.99

Shop Stage 5

Still unsure?

Contact us to discuss your build at Sales@klmrace.com