Monthly Archives: March 2019

  1. What is Straight-Shot Oiling

    What is Straight-Shot Oiling

    Lubrication is the lifeblood of any high-performance engine. That’s particularly true for the rotating assembly that absorbs the many thousands of pounds of combustion pressure and converts it from reciprocating motion to rotary motion to drive the vehicle. Straight shot oiling plays a major role in that brutal environment. Here’s why.

    Main bearings and connecting rod bearings must have a constant supply of fresh clean engine oil to do their job correctly. Anything less means instant catastrophic engine failure. Engine builders devote considerable effort to ensuring a steady supply of cool unaerated engine oil to the rods and mains in high-performance or racing engines. 

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  2. How to Clearance Your Block for a Stroker Crankshaft

    How to Clearance Your Block for a Stroker Crankshaft

    Is a stroker crank part of your next build? That factory block may need some massaging to make it fit. Here's how to make more real estate in your crankcase. 

    Stoker engine have been popular for many years, but there are some pitfalls that can bite you if you are attempting to stroke a stock-block engine. The longer throws on a stroker crank naturally swing the big end of the rod out farther toward the pan rails on any block. This can be problematic on stock factory blocks because they often do not have enough room to accommodate the extra stroke length without interference at the pan rail or other areas in the lower block or crankcase assembly such as the bottom of a cylinder. The most common area of interference is between the rod bolt nut or cap screw and the lower portion of the cylinder adjacent to the oil pan rail or the pan rail itself. To check this,

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  3. What Does a Harmonic Balancer do?

    What Does a Harmonic Balancer do?

    Harmonic balancers are a staple ingredient of any engine build, but what do they really do? Do you have to have one? Is bigger really better? We clear the air about the right balancer to hang on your crankshaft. 

    Harmonic balancers are misnamed. They do not balance an engine, rather they absorb and remove unwanted vibration due to torsional twisting of the crankshaft. They are in effect vibration dampeners and are frequently called dampeners. Dampeners are like torsional shock absorbers used to dampen torsional twist and vibration in an engine. Torsional vibration is a twisting vibration caused by the firing pulses of each combustion event. The force of the combustion process causes the crank to deflect ever so slightly in the direction of the force, and when that force goes away the crank ever-so-slightly springs back. At certain frequencies the crank can

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