Tri-Y Headers for 69-72 GM Truck 265-400 SBC 1-5/8in Primary D371Y-B premade-hoses 1 L6 1969 - 1973

1 L6 1969 - 1973 Chevrolet K20 Pickup 307/5 V8 1969 - 1974 Chevrolet K20 Pickup 350/5

8L V10 2015 Ford F-150 164/2

Excellent replacement for stock clutch for torque levels up to 650 lbs

0L V8 1985 - 1986 Chevrolet C30 Silverado 379/6

106-0403’s precision mandrel bent pipes facilitate superior exhaust flow compared to the crush-bent pipes commonly used in competing aftermarket replacement exhaust systems

Tri-Y Headers for 69-72 GM Truck 265-400 SBC 1-5/8in Primary D371Y-B premade-hoses 1 L6 1969 - 1973Overview: 69 72 GM Truck SBC Tri Y Black Ctd Doug's is the pioneering force behind the popular TRI Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid range torque without sacrificing top end power. TRI Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency. Features: 3 8" thick machined flanges to prevent warping CNC