PROJECT LS2, PART 3 Assembly of the short block and cylinder head installation by Mike Mavrigian All photos by author INSTALLING THE RELUCTOR WHEEL The reluctor wheel features a series of teeth that provide crankshaft position signals via a sensor to the ECM. The wheel press fits to the rear of the crank, immediately forward [...]
A close-up of our bobweight card. Gressman centered each bobweight using an aluminum spacer. This ensures that each bobweight will be located in the exact center of each rod pin. Gressman spun our crank on his pro-ball balancer. Our Lunati crank is a high-quality, forged, non-twist steel unit featuring a 4.000″ stroke. As you would [...]
The forging process begins with a steel ingot that’s heated to approximately 2,400 degrees F, to the point of creating an almost Jell-O-type consistency. (photo courtesy Pacific Forge) With the near-molten steel placed in a forging die, a hammer press slams the die with about 240,000 lbs. in not one but multiple steps. (photo courtesy [...]
FORGED OR BILLET? Depending on who you talk to, some say that forgings are stronger than billets and some say just the opposite. We’re not going to debate that issue here. One of the indisputable benefits derived from carving cranks from billet bar stock is versatility since by simply writing the appropriate program, you can [...]
FORGED CRANKSHAFT TECH Ever wonder how a forged crank is made? We take a look at materials, the forging process and hardening methods. by Mike Mavrigian Just as diamonds are created by pressure and time, a forged crank is the result of heat and pressure, and a bit of precision machining. A forged crank offers [...]
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