Year One enhanced the performance of its LS1 OEM short-block with a Comp valvetrain, and the fuel-delivery system was upgraded to ensure adequate fuel flow should additional modifications (nitrous ...

Simple and Affordable EFI LS Swap System This Holley Sniper EFI tank is perfect for any EFI install you might be doing. It's fully baffled and has an internal EFI-capable fuel pump. The only ...

Fuel System Upgrades We upgraded from our Holley 100gph inline pump (PN 12-890; $326.66) to a Holley VR-1 brushless fuel pump (PN 12-1500; $1,155), which will support over 2,000 hp with gasoline ...

GM's 5.3-liter V8 Ecotec3 engine has a number of positive attributes, including excellent fuel economy. But it also has three ...

Check it out as we fix up the fuel and spark system on our 5.3 LS engine that we got at Dave's Goldenwest Auto Wrecking with some parts from Lokar, Milodon, Holley/Weiand, ARP, Professional ...

If your CJ-7 came with the 4.2-liter six that preceded it, you can make that swap pretty easily. For even bigger improvements in horsepower and fuel efficiency, consider an LS swap for your CJ.