New Product: Edelbrock’s Cross-Ram Intake Manifold for the LS3


With more than 60 years of experience crafting go-fast components for virtually every auto manufacturer around today, Edelbrock has earned a reputation as one of the most well-respected names in the industry of going fast. More specifically, in this segment with the GM community of car enthusiasts. And in the LS/LT powered performance sector, they aren’t resting on their laurels.

After more than three years of development, Edelbrock is finally releasing its latest innovation: The all-new Cross-Ram LS3 intake manifold. Now, right off the bat before we move any further, you’re probably asking yourself “what’s the big deal with this intake manifold?”

Great question. You might have guessed from the name of Edelbrock’s new manifold that this GM-specific inhaler is designed for all gen-IV LS engine cylinder heads which have rectangular port cylinder heads. Or, you may have called our bluff, and remembered that this manifold debuted at last year’s SEMA event. In which case, touché. But now you can actually buy it!

You get two color options, so choose wisely, Neo.

So what does a GM musclecar have in common with a Ferrari? Not a whole lot, but a unique dual-plenum designed intake manifold, which uses 13-inch runners with a pair of dual throttle body flanges might be a start, eh?

Speaking of which, each throttle body opening accepts a pretty large 90mm LS3 throttle body. And for all of your forced induction fiends out there, Edelbrock says its intake manifold was initially designed on a forced induction application, and that you can benefit greatly using one of these manifolds on a boosted LS engine (or naturally aspirated one if that’s your drug of choice, too).

Currently, Edelbrock is working on developing an adapter so it can also be used on vehicles with a single throttle body setup also.


The question is, what can someone expect with this manifold if they were to bolt this bad-boy onto their GM LS/LT powered musclecar?

Enthusiasts can expect an increase in horsepower and torque between 1,500 and 7,000 RPMs throughout the curve, with peak dyno results adding an additional 27 horsepower and 28 lb.-ft. of torque. And according to Edelbrock, the results would be even greater when paired with a set of high flow filters and inlet tubes (as shown in the dyno graph just above).

Keep in mind, if you’re looking to run Edelbrock‘s new Cross-Ram intake manifold (PN 7141) on your LS or LT powered beast, you’re going to need an Edelbrock fuel rail kit (PN 3654) and a set of LS3/L76 style individual port o-ring seals (PN 19256623) to complete the full install. Still need some convincing? Tell us about it — we might even do an install in the near future.

About the author

Jenna Schiebe

Jenna’s passion for cars began at the age of 16 during the process of purchasing her first vehicle. Soon after being introduced to modifications and the car scene by her brother, she became addicted to all things automotive. With a special interest in Japanese vehicles, Jenna has recently taken an interest in euros, as she is eager to learn the ins and outs of all vehicles over time.
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