BluePrint Engines GM LS Pro Series 427 Crate Engine Long Block 605 HP w/o ECU/ Harness
Highlights
- 605 HP & 565 Ft-Lbs Torque
- 11:1 Compression Ratio
- Forged Pistons/Crankshaft
- Hydraulic Roller Cam
BluePrint Engines Long Block 605-Horsepower GM LS 427 C.I. Crate Engine without ECU or Harness.
This Pro Series engine (PSLS42730CT) unleashes 605 horsepower with 565 ft-lbs. of torque using LS3 aluminum heads, a hydraulic roller cam, and a forged crankshaft. They're contained in an LSX-style block with increased thickness. It also features a harmonic balancer, oil pan, and timing cover.
Features and Benefits:
- High-strength cast iron LSX-style crate engine long block
- 605 Horsepower / 565 FT. LBS. Torque
- Compression Ratio: 11:1
- Features 6-bolt main, 4.0685" bore, and 1-piece rear main seal
- Priority main oiling and improved water jacket design
- Increased deck thickness and strength webbing
- Forged crankshaft and pistons with 4.125" rotation stroke
- Forged 6.125" connecting rods with 150,000 PSI bolts
- Internally balanced at the front and rear
- Hydraulic roller cam design
- Utilizes OEM LS3 front and rear covers
- Backed by BluePrint Engines' 30-month/50,000-mile warranty
Cylinder Head Specifications:
- 69cc Chambers
- 2.165" Intake / 1.590" Exhaust Valves
- 259cc Intake / 102cc Exhaust Runners
Camshaft Specifications:
- 0.624" Intake / 0.624" Exhaust Lift
- 239 Intake / 255 Exhaust Duration
- @ 0.050-114 degrees Lobe Separation
Long Block Includes:
- Harmonic Balancer
- Valve Covers
- LS Swap Oil Pan
- Timing Cover
Additional Notes:
- This engine requires a non-weighted flex plate/flywheel.
- Recommended Fuel: 91 Octane
- BluePrint Engines recommends a 2200+ RPM stall converter.
- Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars
- Not for use in pollution-controlled vehicles or in dry sump applications.
California Residents: Proposition 65 Warning
Related Categories: Crate Engines
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Vehicle Fitment
This product will fit the following Camaro years:
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
This product will fit the following Chevelle years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
This product will fit the following El Camino years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
