SLP's 25% underdrive balancer for LS1's incorporate a number of high-quality features you won't find on any other aftermarket unit. Chief among them are a pair of extra tall belt retention walls that eliminate the belt slippage issues endemic to other LS1 balancers. Other unique design strengths include 100% steel contruction (other brands use steel and aluminum), integral timing marks, and built-in puller-mounting threads. Includes a new balancer bolt and detailed installation instructions.

Features:

• Extra-tall belt-retention walls = no more thrown belts
• No aftermarket tensioner required
• 100% steel construction
• Lighter than the stock balancer
• Integral timing marks and puller-mounting threads
• Keyed for high-RPM or supercharged applications
• Does not cause false knock, retard or erratic power-curve dips
• Includes new balancer bolt

Shipping $8.99.