Nuke Performance - Adjustable Cam Pulley for Volvo 8v / 16v round teethNuke Performance Adjustable Aluminum Cam Pulley for Volvo B21, B23, B230, 8v, and 16v, precision engineered in Sweden. Take your Volvo 8v 16v engine to the next level with the Nuke Performance Adjustable Aluminum Cam Pulley with round teeth, precision engineered for Volvo B21, B23, B230 engines. + 12 timing adjustment for precision tuning. High strength aluminum cam pulley with round teeth Hard anodized outer gear for minimum wear over time Unique