The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - planning out dual tank fuel system for LS swap

Mattchu60 · 02-20-2020, 11:17 AM

Yes- the EP 381 will fit right into the stock sending unit. Its physically the same as the stock TBI pump.

One thing I did - may be overkill - but I also got a 1 ft piece of submersible EFI fuel hose. I believe its actually 5/16 and not 3/8 in the tank as well. Common issue is that the stock hose they send you will slowly degrade and eventually burst, causing you to lose all fuel pressure.

02-20-2020, 11:17 AM	#13
Mattchu60 Registered User Join Date: Jan 2014 Location: Swaledale, IA Posts: 484	Re: planning out dual tank fuel system for LS swap Yes- the EP 381 will fit right into the stock sending unit. Its physically the same as the stock TBI pump. One thing I did - may be overkill - but I also got a 1 ft piece of submersible EFI fuel hose. I believe its actually 5/16 and not 3/8 in the tank as well. Common issue is that the stock hose they send you will slowly degrade and eventually burst, causing you to lose all fuel pressure.