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Blueprint Engines

Crate Engine, BluePrint LS 427 ProSeries Stroker, Deluxe LB, w/Front Drive/EFI

Fits 1958–1986 Bonneville View fitment for 37 models
Part# CH36958
Mfg# PSLS4272CTFK
Sold As Each
$16,949.99
List Price: $18,645.95
You Save $1,695.96

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The Performance Level You Desire!

A great foundation to return your vehicle to its former glory or a tire eating machine

Add new power and life to your ride with this brand new crate engine from BluePrint Engines. Featuring an all new engine block that BluePrint designed, manufactured and machined right here in America. Engine is ready to drop in and has been fully Dyno tested, passed vigorous inspections, and is ready to power up your project. With BluePrint offering one of the best warranties in the business, you will have peace of mind when you drop this motor in between your frame rails.

TECHNICAL SPECIFICATIONS HP & Torque: 625 HP / 565 FT LBS Compression Ratio: 11:1 Aluminum Heads Hydraulic Roller Cam Forged Crank Forged Pistons BLOCK: OEM Block Machined in the USA! 6-Bolt Main 4.060" Bored to 4.069 1-Piece Rear Main Seal ROTATING ASSEMBLY: New Forged Crankshaft 4.125" stroke Forged 6.125" connecting rods Forged Pistons Internal CYLINDER HEADS: BluePrint Aluminum Cylinder Heads 72cc chamber 2.165" intake/1.600" exhaust valves 259cc intake/102cc exhaust runners CAM SPECS: Roller .624 intake .624 exhaust lift 239 intake 255 exhaust duration @ .050, 114-degree lobe sep. IGNITION TIMING: ECM supplied with calibration Not capable of transmission control Transmission controller required ALSO INCLUDES: 87mm LT4 DBW Throttle Body LS3 intake manifold 42# injectors and returnless fuel rail Harmonic balancer Valve covers, retro fit oil pan and timing cover Coil Packs All sensors required for engine to run Spark plug wires & wiring harness Gas pedal Complete Front Accessory Drive Premium Black Coated Alternator, A/C, P/S, All belts and pulleys. 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. The Included LS controller package is for engine control only. Does not contain any transmission or body control. The ECU comes with calibration that is optimal for our engine, however, please note that vehicle parameters such as gearing, tire size, vehicle weight, air intake, headers, etc. may necessitate additional tuning once installed into your specific vehicle. The included ECU is unlocked for further refinement at your local dyno shop if required. BluePrint Engines Recommends Air Intake Kit to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.

Notes

  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping.
  • SHIP NOTE: This item cannot be shipped FedEx Ground and requires Truck Freight Delivery which must be prepaid by credit or check (no C.O.D). Please call or email us for an exact quote.
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This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National  
1984–1987 Buick Grand National  
1976–1987 Buick Regal  
1963–1976 Buick Riviera  
1961–1972 Buick Skylark  
1983–1987 Buick T-Type  
1938–1993 Cadillac 60 Special  
2013–2019 Cadillac ATS  
1965–1976 Cadillac Calais  
2003–2019 Cadillac CTS  
1959–2005 Cadillac DeVille  
1953–2002 Cadillac Eldorado  
1999–2000 Cadillac Escalade  
2002–2023 Cadillac Escalade  
2002–2013 Cadillac Escalade EXT  
1954–1996 Cadillac Fleetwood  
1936–1951 Cadillac Series 60  
1936–1951 Cadillac Series 61  
1937–1976 Cadillac Series 62  
1936–1951 Cadillac Series 63  
1937–1976 Cadillac Series 65  
1936–1987 Cadillac Series 67  
1936–1987 Cadillac Series 70  
1936–1987 Cadillac Series 72  
1936–1987 Cadillac Series 75  
1976–2004 Cadillac Seville  
2005–2011 Cadillac STS  
2004–2009 Cadillac XLR  
1964–1977 Chevrolet Chevelle  
1959–1960 Chevrolet El Camino  
1964–1987 Chevrolet El Camino  
1978–1983 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo  
1995–2007 Chevrolet Monte Carlo  
1961–1988 Oldsmobile Cutlass  
1958–1986 Pontiac Bonneville  
1959–1977 Pontiac Catalina  
1962–1987 Pontiac Grand Prix  
1964–1973 Pontiac GTO  
1961–1981 Pontiac LeMans  
1961–1970 Pontiac Tempest  
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