JE Pistons 379451 FSR Ultra Series Piston Kit Bore Compression - 93.00mm 10.5 1

The JE Pistons 379451 FSR (Forged Side Relief) Ultra Series Piston Kit delivers race-proven performance engineering for high-performance street and competition applications. This complete piston kit features a standard 93.00mm bore diameter with a 10.5:1 compression ratio, providing an optimal balance of power and reliability for modified engines.

Key Features:

• FSR Ultra Series forged construction for maximum strength and durability
• 93.00mm standard bore diameter for precise fitment
• 10.5:1 compression ratio optimized for performance applications
• Advanced forging process ensures consistent grain structure and superior strength-to-weight ratio
• Side relief design provides valve clearance for aggressive camshaft profiles
• Precision machined ring grooves for optimal ring seal and longevity
• Complete kit includes pistons, rings, pins, and clips

JE Pistons FSR Ultra Series pistons are manufactured using state-of-the-art forging techniques and CNC machining to deliver championship-winning performance. The forged construction provides exceptional durability under extreme cylinder pressures and temperatures, while the carefully engineered design reduces friction and maximizes power output. Ideal for forced induction, naturally aspirated, and nitrous applications where reliability and performance are critical.