Gen V LT1 GM Single Beehive Valve Spring Set (GM12691120) 2005 - 2006 GM Tools

Gen V LT1 GM Single Beehive Valve Spring Set (GM12691120) 2005 - 2006 GM ToolsGen V LT1 OEM Single Beehive Valve Spring Set (12691120) GM 12728729 Gen 5 LT1 single beehive valve spring replacement set. This valve spring set is a performance replacement for stock Gen 5 LT1 valve springs, commonly used as an "upgrade" spring for the L83 5. 3 engines. These spring set uses your stock factory seats, seals, retainers and locks.

The Duramax Screamer turbo works with any "box" tuner with further improvements achieved with custom tuning

Bilstein's patented deflective self-adjusting valving delivers improved damping control and a smooth ride on all road surfaces at any speed

7L SOTF Switch (FTFORDU)

BD uses their own version of thrust collar and backplate as well their own designed sintered brass 360-degree 6-pad thrust bearing that reduces heat build-up and increases durability

and larger valve sizes exceed a single spring’s capabilities

and EFI systems that use feedback control

Use this solid fuel block with the 2004

the bolts between the torque converter and flex plate can slip

This camshaft will perform best in vehicles equipped with headers

Sold as a set

PPE includes our exclusive high-power Neodymium magnet-equipped fill plug to pull harmful ferrous metal particles out of the oil before they have a chance to attack the bearings and gears

500 RPM or