A common weak point found when tuning the 4AG engine is from the crank cab bolts being insufficient to cope with the high stress loads from extreme engine speeds. The weak crank cab bolts can result in the stock crank cab bolts breaking or excessive loads on the bearings causing rapid irregular wearing. In the worse case scenario this can lead to engine failure. The TOMEI ladders also aid further in increased block rigidness to help support the crank cab bolts and maintaining the reliability of the bearings for longer engine life and increased durability for constant high end performance use. In the 4AG engine which assures high revolution conversion, it is the item which cannot be missed. When aiming to use the 4AG for high end engine speeds this is an absolute must to include in your engine to cope with 10,000+ RPM.
