For towing there is nothing that matters like torque. It’s why the current class of diesel engines coming from GM, Ford, and Ram are bigger and more powerful than ever before, and why older trucks setup for towing usually had a big block in them. I own a big-block powered square body dually and I can tell you that it moves just about any load, but it isn’t going to win any races while doing it. But while the diesels were getting stronger and stronger, GM was still providing a bigger gas engine for those customers who didn’t want, need, or couldn’t afford the diesel upgrade. That engine, the 6.0 LS, was the torque leader for their gas engines and came in a lot of HD trucks. But can a 6.0 LS keep up with good old big block torque?
Richard Holdener has the answer, and he’s going to show you the dyno tests so you can see for yourself. Does size matter, or can technology overcome that? Watch.
Video Description:
HOW DO I MAKE MORE LOW-SPEED TORQUE? DOES A BIG BLOCK CHEVY MAKE MORE TORQUE THAN A 6.0L LS? IS BIGGER REALLY BETTER? IS AN LS BETTER THAN A BIG BLOCK? WHAT MAKES A BETTER TRUCK MOTOR, LS OR BBC? CHECK OUT THIS COMPARISON BETWEEN A 6.0L (ACTUALLY 4.8L, 5.3L AND 6.0L) AND A GEN-6, 7.4L 454 BIG BLOCK CHEVY. IF YOU GO LOOKING FOR LOW SPEED TORQUE PRODUCTION, CAN A MODERN MOTOR WITH MORE TECHNOLOGY COMPETE WITH GOO OLD CUBIC INCHES? IS THERE REALLY A REPLACEMENT FOR DISPLACEMENT?
Have done a lot of towing with 5.4 Ford, 6.0 Chevy & GenV 454 Chevy. The 5.4 Ford had more towing grunt than the 6.0 unless you keep the RPM up which is not how anyone wants to tow anything. The 454 was by far the best of the three but was all grunt, very bulldozer like. Richard Holdener’s dyno curves accurately depict my own experience.