ACL Main Bearing Race Series Standard Size Sets Nissan 350Z VQ35DE 2003-2006 | 4M2633H-STD

ACL is the ultimate choice for engine builders, renowned for its top - notch quality and consistency. As an Original Equipment supplier, you'll spot ACL in numerous cars on the road. Many racers, especially those into import racing, rely on both its stock and performance series crankshaft rod and main bearings. ACL premium bearings outlast OEM ones. Their special coating not only helps prevent early engine bearing failures but also saves you from costly engine damage. ACL Race Series performance bearings are built for extreme endurance in tough conditions. When you're running high RPMs and big boost, with ACL's top - grade metallurgy, you won't have to worry about fatigue, stress wear, or failure. When ordering bearings, remember that engine bearings need proper tolerance measurement before purchase. If you're unsure about the right size for your engine, consult a pro engine builder. We don't accept returns or exchanges for incorrectly ordered engine internal components. ALC's main bearings are crafted from softer metal to protect your crank and engine block. A thin oil layer lubricates the bearing - crank connection, letting the crank 'float' and reducing wear. Good support from main bearings is vital to avoid oscillations and wear that can harm the crankshaft and other parts as the motor gets out of balance. Bearings with extra oil clearance can handle higher - horsepower motors better but may wear more during startup. We suggest these be bought by experienced pros only.

Using these ACL main bearing race sets is straightforward. First, make sure to measure the proper tolerance of your engine before installation. If you're not sure how to do this, it's best to consult a professional engine builder. Once you've got the right size, carefully install the bearings according to your engine's specifications. When it comes to maintenance, keep an eye on the oil levels. The thin layer of oil between the bearings and the crank is crucial for smooth operation and to reduce wear. Regularly check for any signs of excessive wear or damage. If you notice anything unusual, like strange noises or vibrations, it might be time to inspect the bearings. Also, remember that the bearings with extra oil clearance are great for high - horsepower motors, but they can wear out faster during startup. So, if you've got these, be a bit more cautious during the initial start - up phase. And always follow the general maintenance schedule of your vehicle to ensure the longevity of these bearings.