The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Ls swap dual tank, fuel system parts list, for return rail system???

BIG10 · 06-26-2015, 02:25 PM

IIRC they used a different tank switcher on 87-up TBI trucks to handle the higher fuel pressure. I plan to pick one up to use on my 78 whether I end up going LS or aftermarket EFI system. Either way I'll still be running higher fuel pressure and I think it will be necessary. Someone please correct me if I'm wrong.

06-26-2015, 02:25 PM	#6
BIG10 Registered User Join Date: Dec 2008 Location: Jenks, OK Posts: 314	Re: Ls swap dual tank, fuel system parts list, for return rail system??? IIRC they used a different tank switcher on 87-up TBI trucks to handle the higher fuel pressure. I plan to pick one up to use on my 78 whether I end up going LS or aftermarket EFI system. Either way I'll still be running higher fuel pressure and I think it will be necessary. Someone please correct me if I'm wrong. __________________ Jay 1978 Big 10 Silverado, 355 + 700R4 + 3.42 + factory tach + A/C + dual tanks + working cruise control = awesome highway cruiser.