The BTR Gen V Beehive Valve Springs are an ovate beehive-style spring set built for GM Gen V L83/L86 truck engines, supporting up to .550in of valve lift. This is the valve spring upgrade BTR recommends for its Gen V L83 Stage 1 and Stage 2 camshafts.
- Part number: BTR91120-16
- Application: GM Gen V L83/L86 (cross-reference GM 12691120)
- Max valve lift: .550 in
- Spring type: Ovate beehive, single spring
- Spring rate: 386 lb/in
- Coil bind height: 1.28 in
- Outer diameter: 1.271 in
- Quantity: Set of 16
FAQ
What camshafts require this spring kit?
BTR recommends the BTR91120-16 spring upgrade for its Gen V L83 Stage 1 and Stage 2 camshafts.
What is the maximum valve lift supported?
Up to .550 in of valve lift.
How many springs are included?
This is a complete set of 16 springs, enough for a full engine.

