Cylinder Head To Block Dowel Suit GM LS1 1997-2005 .511" O.D x .590" Deep

Pioneer Automotive Industries was founded in 1946 in Meridian, Mississippi. Since inception, Pioneer's focus has been to provide customers with quality product and superior service. As the Pioneer product lines continued to expand the company established itself as a leading supplier in Engine, Transmission and Powertrain products and their related accessories