DESCRIPTION: 

• HP & Torque: 260 HP / 342 FT LBS
• Gain of up to 50 HP and 42 Ft lbs vs Factory.
  Compression Ratio: 9.1:1
  1987-1995 GM Iron Heads
  Hydraulic Roller Cam
  Cast Steel Crankshaft
  Hypereutectic Pistons

BLOCK:

• NEW BluePrint Block
  4-Bolt Main
  4.000" Bore
  1-Piece Rear Main Seal
  Mech fuel pump provision: Yes
  Passenger Side Dipstick
• Drilled and tapped for clutch linkage

ROTATING ASSEMBLY:

• Cast Steel Crankshaft
  3.480" Stroke
  Forged 5.700" connecting rods
  Hypereutectic pistons
  Internal Front/ External Rear

CYLINDER HEADS:

• 1987-1995 GM Iron Cylinder Heads 
  64cc chamber
  1.94" intake/1.50" exhaust valves

CAM SPECS:

• Cam Type: Roller
  .447 Intake .459 Exhaust
  201 Intake / 208 Exhaust duration
  @ .050 - 117 degree lobe separation

IGNITION TIMING:

• Controlled by OEM Computer

ALSO INCLUDES:

• New valve covers
  Oil pan
  Timing cover
• Harmonic Balancer
  Dyno test results shipped with engine

WARRANTY:

• 30 month / 50,000 mile

NOTES:

• Not for use in pollution-controlled vehicles.

• Tested in a factory equipped 1987-1995 oem 5.7 truck with factory torque converter, fueling system, and ECU, while using 87 octane fuel.

• Engine Designed specifically to install in oem 87-95 TBI trucks without any tuning or fuel system upgrades required. 
  Recommended spark plugs are ACDELCO CR43TS with .035" gap

• Designed as increased horsepower, replacement longblock. Customer to re-use existing intake manifold, ecu, and fuel system from 87-95 350 truck engine. Excellent upgrade for an 87-95 truck, gaining Roller cam, 4 bolt main, and horsepower, otherwise retaining stock components, such as torque converter and exhaust.