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GM 427 LS Series • Dressed Carbureted Drop-in • Aluminum Heads

Dyno Testing Video

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HP & Torque: 625 HP / 550 FT LBS
Aluminum Heads
Forged Pistons
Roller Cam
Forged Crank
Part #: PSLS4270CTC


New GM LS3/L92 Aluminum Block!

Rotating Assembly:

Forged Steel Crankshaft
Forged Mahle Pistons
Forged I beam rods
Mahle performance rings
Balanced Rotating Assembly
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
2.165 intake valves
1.590 exhaust valves
Hardened push rods

Cam Specs:

Roller - .624 intake .624 exhaust lift, 247 intake 263 exhaust duration @ .050, 114 degree lobe sep.

Ignition Timing:

Ignition box required

Also Includes:

Carburetor – 850cfm with mechanical secondaries, dual accelerator pumps and mechanical choke
Single plane aluminum intake
Harmonic balancer
Valve covers, retro fit oil pan and timing cover
Coil Packs and coil pack harness
Crank, cam and MAP sensors
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

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