Crankshafts - Crower

1 189 For technical support call 619-661-6477 or visit CRANKSHAFTSC hoose a Crower crankshaft and you ll get the fi nest high performance crankshaft made. The Crower crankshaft facility is like no other in the industry, utilizing massive,state-of-the-art CNC machining centers that work in unison, alongside seasoned master craftsmen. Crower Crankshafts incorporate the unique combination of precision and attention to detail with high production capabilities, in a wide variety of designs and MATERIALC rower Crankshafts are made from the fi nest quality materials in the world. Our top of the line forged cranks are made from aerospace quality, vacuum degassed 4340 chromoly steel.

2 Our 4340 forged cranks are"non-twist" drop forged for the strongest Crankshafts on the market. Crower 's billet cranks utilize either 4340 or EN30B materials. It's your choice at Crower , we make what you want and need for your has created a very eff ective combination of streamlined production capabilities and quality engineering that produces better Crankshafts , quicker and more accurately than any competing crankshaft manufacturer. Crower combines the latest CNC machining centers with nearly 30 years of crankshaft manufacturing experience, to deliver the highest quality crankshaft , built to exacting specifi cations, at an aff ordable price. The capability of manufacturing from round bar allows Crower to produce steel billet Crankshafts for just about any engine make to any desired stroke and horsepower you purchase a Crower crankshaft you ll get a quality crankshaft , manufactured from the fi nest materials to exacting tolerances, that goes unmatched in the high performance industry.

3 You are guaranteed precision indexing and throw-to-throw consistency that engine builders swear is absolutely perfect. When you install a genuine Crower crankshaft in your engine, you ll do so with the peace of mind that it will perform fl technical support call 619-661-6477 or visit TYPICAL SCENARIO For years you ve been running a stock crank and have never experienced rod bearing failure. You decide to step-up and replace your stock crank with an aftermarket brand. Immediately you encounter bearing scuff or total bearing failure. This scenario happens often, much to the dismay of the engine PROBLEM On most aftermarket brands the rod feed hole is only drilled to the centerline of the main.

4 This method of drilling doesn t deliver enough oil to the rod . Creating a high centrifuge, high pressure zone at the main, restricting critical oil fl ow intended for your rods. As engine rpm increases this centrifuge eff ect gets worse, possibly resulting in severe crankshaft damage or even total engine destruction. Not the performance characteristics you expected when you switched to an aftermarket brand SOLUTION STRAIGHT-SHOT OILING After extensive research and design, Crower engineers developed the straight-shot oiling system and virtually eliminates bearing burnout and customer complaints. It features two Crower exclusives, off -center drilling and the teardrop design oil hole, which scoops oil at the main and forces it into the rod feed hole.

5 Although it s time consuming, we feel it s worth it. THE PROVEN FACTS It has been proven time and time again, the lighter the parts, the quicker the throttle response. This is no more evident than in the components that make up the bottom end of an engine. Reducing a Crankshafts counterweight mass is critical in getting quicker acceleration and deceleration. It also alleviates stress and engine wear and improves oil shearing in the DESIGNThe Crower Maxi-Light crankshaft redefi nes the term light rotating mass by attaining just the right ratio of a smaller counterweight with an exclusive lightweight crank pin web area. By lightening the crank pin web area we are able to machine excess material from the center of the counterweights without adversely eff ecting balancing.

6 This is Crower s patented pendulum undercutting. Lighter than any other crankshaft like it on the market, the Maxi-Light is structurally just as strong and easy to balance. Although competing manufacturer s claim to have comparable designs similar to the Crower Maxi-Light, consider the fact that it takes much more than just scalloping out the center of the counterweight to achieve the correct combination of light rotating mass and proper balance. Crower pioneered pendulum undercutting the counterweights back in 1989. Entry holes for the rod feed are located at the of the main, allowing oil to fl ow equally and unrestricted to the bearings. This is key to prolonging bearing unique teardrop scoop and exclusive Crower straight-shot oiling system increases critical oil fl ow from the main bearings to the rod from the rod, back up through the main, you can see daylight, indicating it s a genuine Crower crankshaft with the straight-shot oiling UNDERCUTTING ANDLIGHTWEIGHT PIN WEB AREAS maller design places heaviest mass closer to the center of the crankshaft for the quickest engine acceleration less frontal area improves windage and oil shearing in the pan, two external forces that frequently disrupt a crankshaft s uniform motion.

7 The shorter, narrower counterweight reduces total overall mass and has less frontal s exclusive lightweight crank pin web area allows the counterweights to be pendulum undercut to reduce weight without the need for heavy metal balancing on most applications. Crower S Maxi-Light The Klose s Stress Concentration Reduction distributes stress evenly over the entire overlap s counterweight correct design produces optimum counterweight positioning for the best possible bearing loading and proper technical support call 619-661-6477 or visit Enduro is designed for extreme durability. Used in pro street, heavy nitrous and blown applications. Our 100% American made forging, is the same one used to make our Ultra-Light only difference is the amount of machining time and less debur.

8 1 8" radii, heat-treat, counterweight correct design and straight shot oiling. Comes standard with four lightening American Made WEIGHT: 57-59 lbs (determined by stroke, rod, and main size.)ENDUROSTANDARDNew lightened version of our popular Standard design. Premium 4340 NT (non-twist) forgings, Crower s standard crankshaft features straight-shot oiling, jumbo 1 8" radii,heat-treating, teardrop oil holes, counterweight-correct design. Four lightening holes come American Made WEIGHT: 53-57 lbs (depends on stroke and main)All weights are : Specify Rod & Main : Specify rod length to insure proper piston tocounterweight clearance. Note: Specify Standard or BB weights are : Specify Rod & Main : Specify rod length to insure proper piston tocounterweight clearance.

9 Note: Specify Standard or BB 4 lightening block Chevrolet V8262 267 283 302 305 307 327 350 400 CrankshaftsPart Small BlockChevy Small BlockChevy Small BlockChevy Small BlockChevy Small block Chevy Small block Chevy Small " " " " " " "SpecifySpecifySpecifySpecifySpecifySpec ifySpecifyPart V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small block (Billet) " " " " " " " " " "SpecifySpecifySpecifySpecifySpecifySpec ifySpecifySpecifySpecifySpecifySpecifyJo urnal192 For technical support call 619-661-6477 or visit 4340 Light-Weight includes standard features like straight shot oiling, 1 8" radii, heat treat, plus lightweight profi ling, center counterweight removal, four lightening holes and radius edges.

10 Smaller reduces rotating mass for quicker response, and less American Made. Can be made to meet 50lb class : 44-50 lbs (Determined by stroke, rod, and main size)LIGHT-WEIGHTS mall block Chevrolet V8262 267 283 302 305 307 327 350 400 Note: Specify Rod & Main sizesNote: Specify Std. or BB V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small BlockChevrolet V8 Small " " " " " " " " " " " " " " " "SpecifySpecifySpecifySpecifySpecifySpec ifySpecifySpecifySpecifySpecifySpecifySp ecifySpecifySpecifySpecifySpecifySpecify Part technical support call 619-661-6477 or visit block Chevrolet V8262 267 283 302 305 307 327 350