Moroso 38770 Balancer Bolt for Small Block Chevy

**** The Moroso 38770 Balancer Bolt for Small Block Chevy has garnered mixed reviews from customers, reflecting a blend of commendation for quality and concerns about design features. Many users appreciate Moroso's commitment to American manufacturing, highlighting the black oxide finish that closely resembles original OEM specs, unlike the yellow zinc finish of competing products. Enthusiasts have reported that the bolt fits well and is effective for engine operations, particularly when switching out older models like the 350 SBC and LT-1. Positive feedback centers around the bolt's thicker design and larger head, which simplifies installation by providing a reliable grip for socket tools. This aspect is particularly praised by those who prioritize ease of use. However, there are significant concerns regarding its structural integrity compared to OEM parts and alternatives. Some users have flagged the nearly full threading of this bolt as a potential weak spot, suggesting that such design can cause increased flexing and the risk of fracture under engine torque. Additionally, customers noted the lack of a lock washer, which is included with some comparable products, raising questions about value given the bolt's price point. The diameter and thickness of the retention washer have also been criticized, prompting some users to fall back on the original washers for increased stability. Ultimately, while the Moroso bolt has its merits, particularly for those seeking American-made products, there are valid concerns that may prompt buyers to seek alternatives, especially in terms of producing a more robust and reliable installation. **