LT Big Bore High Volume Fuel Pump - Gen 5 GM LT V8

Crank up your LS or LT’s fuel game with Lingenfelter Big Bore High Volume Fuel Pump for Gen V GM LT V8 engines.

This powerhouse delivers over 30% more flow than stock LT1 pumps and nearly 10% more than LT4 units—enough to feed 1,400+ HP on gas or 1,200+ HP on E85. With a 12mm bore and precision engineering, it’s built to handle the demands of supercharged, turbo’d, or maxed-out builds, ensuring steady pressure and top-tier performance at any RPM.

Designed as a direct-fit upgrade, it slots into your factory system—no mods required. Backed by the same Dallas pros who tuned our world-record C8 E-Ray, this pump pairs perfectly with our elite remote tuning for unmatched power.

• 30%+ more flow than stock LT1, 10%+ more than LT4
• Supports 1,400+ HP gas, 1,200+ HP E85
• 12mm bore for massive fuel capacity
• Direct-fit, no modifications needed
• Optimized with Boost District’s tuning expertise

Vehicle Application List

Compatible with Gen 5 GM LT V8 Engines, including:

• High horsepower GM Gen V V8 and V6 direct injection engines including LT4, LT1, L86, L83 and LV3 E85 conversions of GM Gen V V8 and V6 engines
• 2014-2019 C7 Corvette LT1
• 2015-2019 C7 Z06 Corvette LT4
• 2016-2021 Camaro SS LT1
• 2016-2019 CTS-V LT4 
• 2017-2021 ZL1 LT4
• 2014-2018 Silverado and Sierra with 4.3L LV3, 5.3L L83 and 6.2L L86 engines
• 2015-2018 Suburban, Tahoe, Yukon and Escalade with 5.3L L83 and 6.2L L86 engines