•E85 conversions of GM Gen V V8 and V6 engines
•2014-2019 C7 Corvette (LT1)
•2015-2019 C7 Z06 Corvette (LT4)
•2016-2022 Camaro SS (LT1)
•2016-2019 CTS-V (LT4)
•2020-2024 CT5-V Black Wing (LT4)
•2017-2023 ZL1 Camaro (LT4)
•2014-2023 Silverado and Sierra with 4.3L LV3, 5.3L L83 and 6.2L L86 engines *Not compatible with 6mm shaft injectors
•2015-2023 Suburban, Tahoe, Yukon and Escalade with 5.3L L83 and 6.2L L86 engines *Not compatible with 6mm shaft injector
*Global B ECUs may require extra tuning on a case-by-case basis as we learn more about new models. We do not accept returns due to tuning difficulties, but we’re happy to assist with any technical inquiries.
The Goliath High-Pressure Fuel Pump, developed in collaboration with Stanadyne, represents a cutting-edge, modular solution engineered to address the fuel flow limitations of the stock Gen V LT mechanical fuel pump, enabling significantly higher power outputs. Extensively tested on Katech’s in-house engine dynamometer, the Goliath Fuel Pump demonstrates exceptional performance, supporting over 1,500 horsepower on gasoline and 1,300 horsepower on E85 fuel. These results were achieved exclusively with direct injection (DI) on C16 fuel & turbos with additional testing yielding over 1,300 horsepower on full E85. It is important to note that these figures reflect engine dyno results and are not directly representative of wheel horsepower (whp) due to drivetrain and supercharger losses. Turbocharged setups have achieved 1,100–1,150 whp, while supercharged configurations with a 2650 supercharger have reached up to 1,000 whp. These benchmarks serve as guidelines, with actual performance varying based on specific drivetrain and forced-induction setups. This pump provides a reliable, high-performance fueling solution for extreme builds, ensuring efficient fuel delivery and high RPM stability. Stanadyne Goliath Warranty Terms: Stanadyne warrants to Distributor that the Stanadyne Products sold hereunder will be free from defects in material and workmanship for the period of 12 months/12,000 miles from the date of delivery by Stanadyne. Notwithstanding the preceding, and based on the intention of usage of product, all product is sold and provided “as is” and “with all faults” and without warranty of any kind, express or implied. Stanadyne may provide information to Distributor relating to the Stanadyne Products, including information regarding performance, quality, physical properties, weights, etc. Such information is intended as providing general guidance only and does not constitute any part of the basis of any contract between the parties. Such information does not constitute a guarantee or warranty. THIS WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES NOT EXPRESSLY SET FORTH HEREIN, WHETHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR CONFORMANCE TO DISTRIBUTOR’S SPECIFICATIONS. Stanadyne’s sole liability and Distributor’s exclusive remedy under this warranty is the repair or replacement, at Stanadyne’s option, of Stanadyne Products not conforming to such warranty that are, at Distributor’s or original end user’s expense, removed from the vehicle or equipment and delivered to Stanadyne or to a person or entity specified by Stanadyne. Stanadyne shall have no liability under this warranty for defects that are not identified within the warranty period. A defect shall be deemed “identified” within the meaning of this paragraph only if (i) the Stanadyne Products have been delivered to Stanadyne (or a person or entity specified by Stanadyne) for the purpose of remedying such defect, or (ii) Stanadyne (or a person or entity specified by Stanadyne) has received a written notice from Distributor or original end user specifying such defect and stating that Distributor or original end user intends to seek warranty coverage promptly.
The mechanical fuel pump flow has been a significant limitation in aftermarket power increases for GM direct injection V8 engines. The Lingenfelter Big Bore fuel pump addresses this by providing a substantial boost in fuel flow capacity over the stock LT1/L86 and LT4 pumps, expanding performance potential for these engines. With a 12.0 mm bore, the Big Bore pump offers over 30% more flow than the stock L86 & LT1 pumps and nearly 10% more than the LT4 pump. Paired with the LPE GT35 camshaft (7.85 mm fuel pump lobe), it delivers 40% more flow than a stock LT4 pump with a stock camshaft. Key Specifications: Benefits: Fuel Pump Lobe Sizes: LT4 +30% Injectors: LT4 +50% Injectors: LT4 +70% Injectors: Note: Due to the LT4 +70% Injectors large size, these injectors may not deliver stock-like drivability, especially on pump gas. Manual transmission cars may experience pressure overshoots after shifting, potentially causing misfires. Reducing pressure may be necessary. Important: The LPE Big Bore + LT4 +70% injectors will not meet fueling demands for setups with a 2650 TVS or Whipple blower on E85. In these cases, we recommend our XFP3200 + 70% injectors or supplemental fueling (methanol, PFI) around peak torque. Tuning Support: Compatible with HP Tuners and standalone ECUs All performance figures assume a fully supported setup.
Specifications
Requirements
Power Potential and Recommended Combinations (LT4 +30%)
For Higher Output Applications
