BluePrint Engines 408CI LS Stroker Crate Engine Longblock


  • HP & Torque: 570 HP / 530 FT LBS
    Compression Ratio: 10.8:1
    Aluminum Heads
    Hydraulic Roller Cam
    Forged Crank
    Forged Pistons
Due to world events we are working with our manufacturers every day to ship and receive parts. If the part you are looking for is time sensitive please give our team a call at 855-806-1147 before ordering to ensure it's availability.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: BPEBPLS4080C Categories: ,


  • Hand picked seasoned GM Cast Iron 6.0L block , Bored .030
    OEM Block Machined in the USA!
    6-Bolt Main
    4.000″ Bored .030″ over
    1-Piece Rear Main Seal


  • New Forged Crankshaft
    4.000″ Stroke
    Forged I-beam 6.125″ connecting rods
    Forged Pistons


  • BluePrint Aluminum Cylinder Heads -PS8015
    72cc chamber
    2.165″ intake/1.600″ exhaust valves
    259cc intake/102cc exhaust runners


  • Cam Type: Roller Cam
    .624 Intake .624 Exhaust lift
    239 Intake / 255 Exhaust duration
    @ .050 – 114 degree lobe separation


Timing Set
oil pump


  • 24X reluctor ring, cam sensor in the back of the block
    Because this engine does not ship with an oil pan, we do not dyno test prior to the engine being shipped. In our development testing, this engine makes 570+ HP and 530+ ft/lbs with the following components:
    Cable throttle body
    LS3 Factory Intake
    LS3 43# Injectors









Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to