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

HOW MUCH POWER DO ACCESSORIES ROB FROM YOUR 4.8L LS MOTOR? STOCK ACCESSORIES v ELECTRIC WATER PUMP!

So how much power does it really take to spin the accessories on your LS engine? Is an electric water pump actually giving you real horsepower gains? How about that alternator and power steering? Or...

Budget Shop Truck: Squarebody Long Bed To Short Bed Conversion – WILL IT RUN BETTER!? New Valve seals and much more!

Today’s update on the budget shop truck build, which includes a clean long bed to short bed conversion, has some work going on to make this thing have less blowby and more so that it runs...

DIRT CHEAP, $100 4.8L LS BOOST! JUNKYARD V6 M90 BLOWER TO THE RESCUE! IT FINALLY WORKS ON THE 4.8L!

$100 Supercharger for your LS engine? Wait, what? Has Richard lost his mind? Or will this actually work? The answer might surprise you. Sure it is going to take a little bit of work, but if you are...

MOST POWERFUL LS3 INTAKE EVER? SUPER RICHIE DUAL-PLENUM, ADJUSTABLE RUNNER LENGTH AND PLENUM VOLUME

One thing some of his casual fans may not realize is that Richard Holdener has not only done all the testing and tech stories for magazines and websites for decades, but has also done a LOT of...

COYOTE VS JUNKYARD LS-WHICH MAKES MORE HP? 5.0L YOTE VS 5.3L LS, STOCK, HCI MODIFIED AND HIGH RPM!

If you take brand loyalty out of the equation, can you really put an LS and a Coyote up against each other head to head to see if one of them really is a better engine than the other? In this video...

THE ULTIMATE JUNKYARD 5.3L SHOOTOUT. 512-HP 5.3L VS 542-HP 5.3L-WHICH ONE REALLY WORKS BEST?

If all you knew about these two engines was the final peak horsepower number, there isn’t anyone reading who wouldn’t choose the 542 horsepower 5.3 in this stock bottom end NA shootout....

How To Index Your Bellhousing At Home: It Is Simple And Easy With Just A Few Tools, And Will Ensure Your Manual Trans Works Flawlessly

You ever fight with a manual transmission that just doesn’t want to slide into the clutch and bellhousing? Or one that just never seems to shift as nicely as you’d like? Or one that makes...

JUNKYARD LS MONSTER MAKEOVER! HOW TO TRANSFORM YOUR JUNKYARD 5.3L INTO A 7,700 RPM, 542-HP DEMON!

A stock bottom end 5.3 that makes 100 horsepower per liter? Yep, and the recipe is right here for you to check out and duplicate with your own junkyard 5.3. Plus it spins 7,700 RPM! Check out what...

WHAT IS THE BEST LS INTAKE UNDER BOOST? SINGLE PLANE vs DUAL PLANE BLOW-THROUGH DISTRIBUTION TEST!

I’ll never forget the first time I was in a dyno cell while testing an engine with 8 oxygen sensors. Instead of just having one or two, which is the norm on most of what we work on around here,...

SINGLE PLANE VS DUAL PLANE, WHICH INTAKE OFFERS THE BEST AIR FUEL DISTRIBUTION? FULL DYNO RESULTS!

Years ago Freiburger and I spent the day on the dyno at Westech to see how nitrous worked with a single plane vs dual plane intake manifold. To test it we sprayed the same shot on the same engine...

COMPRESSOR MAPS 101!! TURBO COMPRESSOR MAPS MADE EASY! HOW TO READ A TURBO COMPRESSOR MAP. MAP HACKS

If you are confused by AR, wonder how to know which Compressor Map is right for your future turbo combo, or just don’t understand what everyone is talking about and why you care, this is the...

LS Swap A Square Body Part 3: Halfass Kustoms New Square Body Chevy Project Is A Runner! First Drive And Shop Burnouts!

We’ve shared all the parts of this build so far and you are going to dig it if you like it when a truck makes noise and smokes the tires inside the garage. We dig it and know you will too. This...

HOW TO: CHEAP LS AFM/DOD CONVERSION. CHEAP, CHEAPER AND CHEAPEST OPTIONS. CONVERT FOR PERF CAM SWAPS

DOD, or Displacement on Demand, and AFM, or Active Fuel Management, is the feature that allows your modern LS/LT to run on just 4 cylinders when going down the freeway so that it gets better mileage....

HOW MUCH ARE AFTER MARKET IRON & ALUMINUM HEADS WORTH ON A BBC? STOCK REC PORT VS SUMMIT VS AFR 290

The debate over iron vs aluminum heads has been a long argued one. For years, the old school guys would swear that iron was better for towing and this and that and heat retention and blah blah blah....