GM Performance Parts LS1 5.7L Engine


GM Performance
GM Performance Parts LS1 5.7L Engine

Product images may differ from actual product appearance.

A new small-block legend in its own time!

When GM dared to release a redesigned small-block in 1997, it succeeded beyond the expectations of enthusiasts around the world. Known as the LS Family V-8 small-block, the first and most popular version is the high-performance LS1-available here as a complete crate engine from GM Performance Parts.

In many ways, the LS1 is superior to any small-block that came before it. A deep-skirt, six-bolt-main block, with structural oil pan and other carefully engineered features, helps make the LS1 a strong, smooth running and dependable engine. A highlift camshaft actuating big 2.00/1.55 valves in symmetrical-port cylinder heads helps make it a uncompromised performer.

The engine includes a GTO-style oil pan, electronic drive-bywire throttle body, intake manifold, exhaust manifolds, fuel rail with injectors, balancer, and 14" automatic transmission flexplate. It makes a great performance engine for your performance vehicle project-just add your wiring and electronics.

A handy reference guide (809-88959384) is available to help install the engine in older cars with minimal guesswork. Go high-tech with your next project!

  • Displacement: 346 (5.7L)
  • Horsepower: 350 @ 5800 Rpm
  • Torque: 365 @ 4000 Rpm
  • Bore & Stroke: 3.90" x 3.62"
  • Block: Cast Aluminum with 6-bolt cross-drilled iron main caps
  • Crankshaft: Nodular Iron
  • Connecting Rods: Powdered Metal Steel
  • Pistons: Hypereutectic Aluminum
  • Camshaft: Hydraulic Roller
  • Camshaft Lift: .500 Intake / .500 Exhaust
  • Camshaft Duration @.050: 198° intake / 209° Exhaust
  • Cylinder Heads: Aluminum;Cathedral Port
  • Valve Size: 2.00 Intake / 1.55 Exhaust
  • Compression Ratio: 10.25:1
  • Rocker Arms: Investment cast , Roller Trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: 92 Octane
  • Maximum Rpm: 6000
  • Balance: Internal

    GM Warranty




    FREE SHIPPING ON THIS ENGINE FOR A LIMITED TIME ONLY!




  • 809-17801267
    GM Performance Parts LS1 5.7L 350HP/365TQ
    More info on GM Performance 17801267
    $5,079.99
    Ships
    06/05/12