1978-1987 Buick Regal and Grand National LS EFI Fuel Tank Kit with 255 LPH Pump
When swapping an LS powerplant into a 1978 to 1987 Buick Regal or Grand National, consistent fuel delivery becomes critical, and the 1978 to 1987 Buick Regal EFI Fuel Tank Kit with 255 LPH Pump addresses this need with a custom formed steel reservoir that provides a bolt-in solution for frame rails without modification. Featuring a submerged Walbro pump rated at 255 LPH, it supports up to 550 horsepower while preventing vapor lock in sustained load conditions. The in tank fuel pump module, sending unit, tank straps, filler neck, vent filter, gaskets and installation hardware are all included, and for applications above 550 hp a 400 LPH pump tank kit is recommended.
Precise Application for 1978 to 1987 Buick Regal EFI
The 1978 to 1987 Buick Regal EFI fuel tank kit is engineered exclusively for second generation Regal bodies. Its contours match the underbody structure to retain the factory mounting points without modification to the floor pan. The design aligns with the proprietary MuscleRods mount system, assuring correct elevation relative to the rear axle and preserving factory driveline angles. This strategic placement also allows the OE style fuel sending unit to function within its calibrated range for accurate gauge readings. Service access remains simple, permitting pump removal through the original access panel and reducing labor time during inspections or module replacement.
Robust Fuel Delivery System
This kit features a Walbro fuel pump capable of 255 LPH at continuous duty, calibrated to support up to 550 horsepower on LS engines. The pump assembly is housed inside the tank, stabilizing supply even during hard cornering and rapid throttle transitions by keeping fuel at the inlet. Such design avoids fuel starvation and maintains consistent pressure at the rail. This is crucial for precise injector timing and mixture control under load. All fittings are sized for 6 mm tube connections to match factory EFI plumbing, and the internal wiring harness is routed to minimize electromagnetic interference with onboard electronics.
Premium Construction and Efficiency Gains
Manufactured from a premium polymer composite, the tank offers superior resistance to abrasion, fuel additives and temperature extremes. Its seamless weld construction passes rigorous leak tests and meets federal safety requirements for crash performance. The internal shape is optimized to reduce slosh and maintain fuel pickup in low fuel conditions, improving stability during spirited driving. By streamlining flow paths, pump work load is lowered which reduces heat generation and extends component life. The result is a reliable supply system that enhances fuel economy while supporting high output conversions without compromise.
Trust MuscleRods quality with this in-tank system that supplies LS engines up to 550 hp with stable flow and precise gauge readings. To complete your Larger capacity fuel pump Kit at 400 LPH, consider our 1978-1987 Buick Regal 400 LPH pump Tank Kit.