Katech Kool Shot Piston Oil Squirter Nozzles | GM Gen V LT, LSA/LS9 & Most LS Series Engines (KAT-A5144-R01-8)

GM Gen V LT, LSA/LS9 & Most LS Kool Shot Piston Oil Squirter Nozzles by Katech

Keep your engine cool under pressure. The Katech Kool Shot™ Piston Oil Squirter Nozzles are engineered to deliver superior piston and cylinder cooling for high-performance LS and LT engines. Developed from decades of championship-winning experience, these upgraded squirters improve lubrication and reduce piston crown temperatures, helping your engine make more power, last longer, and perform flawlessly under extreme load. Whether you’re building a dedicated track car, endurance race car, or high-boost street machine, this is the upgrade trusted by professional engine builders and race teams worldwide.

Blocking off your squirters might seem like a shortcut to increase oil pressure, but it’s a risky move. Without proper piston cooling, engines are more prone to heat soak, ring land failure, and even catastrophic piston damage under sustained high RPM or boost.

Please Note: Does NOT fit LS1, LS4, LS6, C5-R & RHS

Please Note: Block modifications are necessary for proper clearance and performance for engines without OEM squirter provisions. Piston skirts may require modifications depending on skirt length and stroke.

Features

• Optimized Flow Design: Precision-machined jets deliver targeted oil flow to piston undersides, minimizing detonation risk and thermal stress.
• Durability Tested: Katech Kool Shot Piston Oil Squirter Nozzles have been rigorously tested for durability and validated in-house on our Superflow Engine Dyno, ensuring proven performance and reliability under real-world operating conditions.
• Engineered, machined, and hand assembled at Katech Engineering

Benefits

• Easy Installation: Thanks to improved engineering, the Katech Kool Shot Piston Oil Squirter Nozzles eliminate two big headaches, you won't need to remove your camshaft for installation or remove the squirters for future camshaft changes.
• Enhanced Reliability: Reduces piston scuffing and extends service life under high cylinder pressures and elevated temperatures.
• Race-Tested, Street-Proven: Built on over four decades of championship-winning engineering, relentless innovation, and American craftsmanship.

Applications

• Engineered to accommodate a 4.000"+ stroke for GM Gen V LT, LSA & Most LS Series Engines without modifications to the factory squirter provisions.
• LS2 6.0
• LS3 6.2
• LS7 7.0
• LS9 6.2 (Supercharged)
• LSA 6.2 (Supercharged)
• LT1 6.2
• LT2 6.2
• LT4 6.2 (Original| 6.2 (Supercharged)
• LT5 6.2 (Original) / 6.2 (Modern)
• L83 5.3
• L8t 6.6
• L86 6.2

What's In The Box?

• (8) Piston Oil Squirters, Fasteners including, OEM GM Factory Assembly Bolt, Install Info.

Installation

• Requires block machining to install, for LS3, LS7, LS2.
• Torque to 18ft/lbs with Loctite Blue Threadlocker 242™