BIG BOSS DETROIT 12.7 STAGE 2 CYLINDER HEAD camshaft and 389 (without console) models

and 389 (without console) models

TRUCK MODEL  PETERBILT 379

Stock and other manufacturers fall short as their design constricts the airflow increasing the turbo response time

Introducing the PDI Big Boss Out of Frame Overhaul Kit for CAT 3406E and C15 engines

item # 34211/34215

BIG BOSS DETROIT 12.7 STAGE 2 CYLINDER HEAD camshaft and 389 (without console) modelsAvailable for: Detroit 60 Series 12. 7L Non Egr Engines Key Benefits High Nickel Casting Fire Ring Inserts Inconel Exhaust and Intake Valves Stainless Retaining Clips Made in the USA Warranty: 2 Year Unlimited Mile Warranty PDI Big Boss Detroit 60 Series Stage 2 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy duty applications in trucking, construction, agriculture, and