The standard one, like the one pictured above, is available for around $ 25, but you can also find much pricier versions in materials like raw aluminum. (lawyerist.com)
• Raw aluminum casting, not machined • Accommodates 10 ° — 14 ° x 5 ° intake and 5 ° — 9 ° x 2.5 ° exhaust valve angles • Designed to work on DRCE 2 block P / N 24502572 click the following article (chevroletperformanceparts.com)
Economists say the companies that make aluminum into car bodies and soda cans employ far more people than the smelters that make raw aluminum itself. (nytimes.com)