Some of the applications offer complete kits with cam, lifters, valve springs, retainers, locks and a timing set.

For each application there are hot, hotter and hottest grind options to give builders more flexibility in matching the cam to the engine’s compression ratio and head flow. The cams are offered in hydraulic flat-tappet and hydraulic roller versions, including retro-fit hydraulic roller kits. Lunati set the intake centerline at 104 degrees for the entire series, which covers the traditional Ford and Chevy small-blocks along with the Chevy big-block. “The intake closing is more tucked in for the street RPM.” “On the design, the Bootlegger is more like a race cam on the exhaust opening with just a little less overlap to allow some street manners,” explains Lunati engineer David Chamberlain. Lunati, however, took a radically different approach.

The introduction of Lunati’s new Bootlegger hydraulic series – with its wicked 108-degree lobe-separation angle, fast opening profile and plenty of area under the lift curve – will serve only to fuel the flames on this heated bench-racing topic.Īccording to legend, the first 3/4 cam was developed by Ed Winfield when he matched the intake lobe from a full race cam with the exhaust lobe from his 1/2-race series – hence the 3/4 designation that has evolved into hot rod vernacular for a hot street cam.

Built a 5.3 with cam,springs,rods,ect.Motor is installed in an 01 silverado 1500 2wd shorty and running,innovate mtx-l wideband installed in the Y pipe,purchased HP TUNER and got the truck connected.Watched a pile of videos and read everything I can find pertaining to HP tuner.Truck is currently stuck in the garage with 10' of snow in the driveway so I cant get it out on the road any time soon.Ive got the basic functions of the software figured out but really nervous about making any changes that might do more harm than good.For you cam swap guys that figured this stuff out on your own where did you start?There isnt a guy within 300 miles of here that knows enough or is willing enough to help me with a base tune so Im going to give it my best shot.Should I pay someone to write a tune I can upload to get started or take a shot at it?I know about the tutorials and pay to learn courses and I plan on looking into that when I have the time,Im just trying to get a tune in it where its safe to put a little time on this motor.Thanx in advance for any help.Ever since hot rodders in the ‘50s started swapping “3/4-race cams” into their engines, the search for the ultimate street cam has been an ongoing and highly debatable issue.

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