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GM 427 LS Series • Dressed Fuel Injected Drop-in • Aluminum Heads

Dyno Testing Video

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HP & Torque: 625 HP / 565 FT LBS
Aluminum Heads
Forged Pistons
Roller Cam
Forged Crank
Part #: PSLS4272CTF


New GM LS3/L92 Aluminum Block!

Rotating Assembly:

Forged Steel Crankshaft
Forged Mahle Pistons
Forged I beam rods
Mahle performance rings
Balanced Rotating Assembly
Oil pump
Hydraulic roller cam
Premium single true roller timing set
GM factory roller rockers with upgraded full roller trunion

Cylinder Heads:

New BluePrint Aluminum Cylinder Heads - PS8015
Chrome moly retainers and spring locators
Dual Coil .650" lift valve springs
2.165 swirl polished intake valves
1.590 swirl polished exhaust valves
Hardened push rods

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:

90mm 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
Dyno tested & shipped with results


30 month / 50,000 mile


This engine requires a non-weighted flexplate/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.

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