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A pair of 2 new steel solid motor mounts for small block Chevy engines. These brackets are manufactured in Central Texas, USA. Our SBC engine mount brackets replace the GM OEM Part # 3990914 used on most small block Chevy models from 1958-1972.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.