Category Archive: 1320 Engine Tech, 1320 Tech Story, Apex Engine Tech, Apex Tech Stories, ENGINE, ENGINES, TECH, Tech Stories, Videos, XL Engine Tech, XL Spotlight, XL Tech Stories

WHAT MAKES MORE HP ON A JUNKYARD 4.8L LS? CARBS OR EFI? EDELBROCK PERFORMER RPM & 750 v TRUCK EFI

Ah, the age old Carb vs EFI story, but this time it is the 4.8 LS Carb vs EFI and both are great options. There are a lot of ways to get air and fuel into an LS engine with all the aftermarket parts,...

JUNKYARD LS TUNING SECRETS! A/F TEST-10:1 v 11:1 v 12:1 v 13:1. TIMING TEST-17, 20, 24, 29 DEGREES!

Air Fuel Ratio is the ratio of air to fuel that is going into the chambers of your engine. It is measured in the exhaust, after the combustion has happened, by measuring how much oxygen is left over...

The Alfarrari Project: The Engine Is Getting More Love And Test Fitting The Engine And Gearbox!

It’s time for the engine to start getting ready to go in! More engine adapter work, then doing some stuff with the intake so it will fit, and then actually test fitting this bad boy! If this...

HOW MUCH POWER IS CAM LIFT WORTH? BTR TRUCK NORRIS VS TRUCK NORRIS NSR LOW LIFT. DOES LIFT MAKE HP?

Camshafts, regardless of the engine platform, have three measurements that define them. Lift, or the amount the camshaft will open the valves, duration which is the amount of time the camshaft will...

JUNKYARD LS PLUG GAP TEST. DOES MORE GAP EQUAL MORE POWER? HOW MUCH SHOULD I RUN? .010 VS .100 GAP

Spark plug gap is one of those things that some folks SWEAR makes a huge difference in power. It goes right along with the guys that think that indexing plugs is a big performance trick, but...

CHEAP, JUNKYARD 5.3L CAM TEST. BTR CAMSHAFT FAMILY FEUD-TRUCK NORRIS VS HOT ROD VS SS2? WHO WINS?

Who will reign supreme? It’s a battle of cheap 5.3 LS camshafts from Brian Tooley Racing. I can tell you which one I’d pick, but I’m going to let you watch and decide for yourself....

Piston Tech Talk: Mahle Motorsport Talks About Their Power Pak Piston For The Toyota Supra B58 Engine

As internal combustion engines become more highly refined and engineered (as they have been doing for 100+ years), the technology involved in hot rodding them continues to do the same. MAHLE...

CHEAP, BROKEN, JUNKYARD 4.8L-WILL IT RUN? WITH SO MANY ISSUES, CAN THE DAMAGED LS COME BACK TO LIFE?

So you find a cheap 4.8 or 5.3 for sale on Facebook Marketplace, and take it home to clean up and put into your project car or truck, only to find that it has a bunch of issues you weren’t...

Polishing Turds: Part 12, Final Assembly Before Dynoing This Thing!

In this new episode of the Polishing Turds series from HED you are going to see the final assembly of the engine finally completed! Can you guess how much power it is going to make on the dyno? Pete...

HOW TO MAKE SUPERCHARGED 5.0L FORD POWER. WHAT HAPPENS IF YOU ADD HEADS, CAM, INTAKE AND BOOST?

If you have a 5.0 Ford, aka a 302, and you want to add power to that bad boy, there are tons of options available. After all there are a lot of camshafts, intakes, superchargers, cylinder heads, and...

DO PORTED HEADS ADD POWER ON A TURBO LS? YES, BUT DO YOU REALLY NEED THEM? ARE THE DECKS TOO THIN?

Does porting your stock LS heads make sense when you are going to add a turbocharger to the mix? The easy answer is yes. And the easy answer is no. Why both? Well, it kind of depends on what you are...

TUNE PORT INJECTION-LONG RUNNER VS SHORT RUNNER-WHICH ONE MAKES MORE HP, WHICH ONE MAKES MORE TORQUE?

Long vs Short Runner intake manifolds is a discussion that has been going on for decades. Which is right for my combo? Which one makes the most power? Which one makes the most torque? Is there...

LOW-BUCK vs MO-BUCK, CHEAP, JUNKYARD 454 VS GM ZZ454 CRATE MOTOR-WHICH ONE WOULD YOU CHOOSE & WHY?

Junkyard vs Crate, this is a comparison that has been going on for a long time and people have a variety of opinions on which one is the best for a hot rod project. While both of the engines in this...

Polishing Turds: Part 11, This Thing Is Finally Going To Be A Whole Engine Again!

In this new episode of the Polishing Turds series from HED you are going to see the final assembly of the engine finally completed! Pete covered assembly prep and cam bearings, and other assembly...