BluePrint Engines Pro Series Engine 427CI 605HP Base GM LS-Style W/O Ecu/ Harness
Highlights
- 605HP LS Power
- Forged Rotating Assembly
- Aluminum LS3 Heads
- Internally Balanced Front/Rear
BluePrint Engines Pro Series 427CI 605HP Base-Dressed GM LS-Style Engine without ECU or Harness.
This GM-compatible engine (PSLS42730CTF) unleashes uncompromising LS power. It is built for enthusiasts who demand brute strength and precision performance. This street-proven powerhouse delivers extreme horsepower and torque. The engine boasts a combination of premium forged components and a high-strength LSX-style cast iron block. The 11:1 compression ratio and 4.125” stroke deliver explosive low-end torque and responsive throttle performance, making it perfect for muscle car restorations and restomods.
Features and Benefits:
- 605 horsepower and 565 lb-ft torque output
- 11:1 compression ratio for maximum performance
- Hydraulic roller cam with .624/.624 lift and 239/255 duration
- 4.125” stroke and 6.125” rods for balanced power
- Improved water jacket design and extended cylinder skirt
- Internally balanced front and rear
- Ready for custom ECU and harness setup
- Compatible with most LS swap applications
- Ideal for Pro Touring, muscle car, and truck swaps
Specifications:
- 4.0685" bore and 6-bolt main
- 69cc chamber
- 2.165" intake and 1.590" exhaust valves
- 259cc intake and 102cc exhaust runners
- .050-114-degree lobe separation
Kit Includes:
- BluePrint high-strength LSX-style cast iron block
- BluePrint Engines LS3 aluminum cylinder heads, fuel injectors, and rail
- Forged crankshaft, pistons, and connecting rods
- LS swap oil pan, windage tray, and pick up screen
- Factory LS3 front and rear covers
- DBW throttle body (P/N: BPP12191019)
- Water pump (P/N: BPPLS126WP)
- GM plastic intake manifold
- Spark plugs, wires, harmonic balancer, coil packs, and sensors
Vehicle Fitment:
- 1965-2010 Mustangs
- 1960-1998 Chevy C10/C20/C30s and 1500/2500/3500s
- 1948-1979 F-100s
- 1966-1977 Broncos
Tech Tips:
- Recommended fuel: 91 Octane.
- BluePrint Engines recommends a 2200+ RPM stall converter.
- Retro fit oil pan will fit most 1955-1995 GM front engines, RWD, and V8 cars.
- Not for use in pollution-controlled vehicles or in dry sump applications.
- BluePrint Engines recommends air intake kit P/N: BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained.
Please Note: Does NOT include any engine management/controller.
California Residents: Proposition 65 Warning
Related Categories: Mustang Engine, Bronco Engine, Restomod Engine, F-100 Engine, F-100 Restomod Engine
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 Bronco years:
This product will fit the following C/K years:
- 1988,
- 1989,
- 1990,
- 1991,
- 1992,
- 1993,
- 1994,
- 1995,
- 1996,
- 1997,
- 1998,
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:










