Building a 650 hp Naturally Aspirated Drift Spec LS3 Part 2

The crank is laid into the block.  Since this is a stroker engine we previously dummy assembled it and checked for rod clearance to the block.  We had to do some minor clearancing to the block to clear the rod bolts in a few places before we sent it to the machine shop.

We had previously WPC treated the crank journals for less friction and longer life. WPC is the Japanese superfinishing process that leaves a super smooth hard surface that gives really low friction and long life all while improving fatigue strength. The front main cap is dropped in place on the ARP studs.

The rest of the main caps and ARP studs are set in place.

The nuts and washers are put in place on the studs.  It is very important to lubricate the studs, under the head of the nut and the face of the washers with ARP’s assembly lube to get an accurate torque reading.  The correct lubricant makes a huge difference in torque accuracy.

The nuts are run down on the studs and roughly tightened, then loosened and retightened a few times to distribute the lubricant and burnish in the threads and nut seating faces for a better final torque reading.

The studs are then brought up to final torque in steps in a cross pattern.


  1. Want to purchase 2010 SS Camaro Automatic
    Would the motor in this vehicle be rebuilt to the specs in this video or would you place a new motor of your specs into the vehicle?
    VIN 2G1FK1EJ7A9207576
    Car is listed local to you on Carvana

    1. 256 degrees of duration at 0.050″ lift on the intake and 273 degrees duration on the exhaust. The lift is 0.712″ on the intake and 0.688″ on the exhaust side. The lobe centers are 107 degrees on the intake and 115 degrees on the exhaust with a 111-degree lobe separation angle

  2. Do yall offer engine building services i collapsed a lifter in my engine and an fixing to just go ahead and rebuild it to these specs.

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