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PRODUCT SPOTLIGHT: Smeding Performance’s 408″ LS3

For the hot rodder who demands usability and performance, Smeding Performance’s 408” LS3 engines are designed to take your project to the next level. These aren’t your typical cookie-cutter kits—they’re full-fledged, turnkey engine packages built to drop into your classic chassis and turn it into a road-ready rocket. Whether you’re chasing street-friendly power or show-stopping performance, Smeding has you covered with engines dialed in for hot rod perfection.

LS1 CAM SWAP AND DYNO TEST

When it comes to adding power to your small-block Chevy, the camshaft is an integral part of the performance equation. Luckily for owners of Chevy’s latest iteration (Gen III) of the famous small block, the modern fuel-injected LS1 responds just as well to camshaft upgrades as the LT1s, L79s and L48s of old. Naturally, cam technology has come a long way since the days of the Duntov 30-30 profile. The improvements in cam technology are important, as the new LS1 is head and shoulders above any of the old ’60s and ’70s muscle-car small blocks, regardless of the advertised power ratings.

Project ’47: Part Two

The Blueprint 383 provides the Advanced Design pickup with nearly 400 hp and 442 lb-ft of torque, which is plenty of power for cruising, especially the fair- grounds. During the engine build, Blueprint Engines took the time to photograph the machining process, as the company completely refurbished the Chevy four-bolt main block, machined and assembled it into a brand new horsepower monster.

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CRATE OPPORTUNITIES

If you’ve ever imagined a time when you could simply pick up the phone or send an e-mail to General Motors and order the engine of your dreams, pull it out of a box delivered to your door and plug it into the car of your dreams, then stop dreaming as that time has come. While it’s not new information that GM Performance Parts provides an assortment of engines to choose from, it’s never been easier to select the one that is best for your budget and the intended purpose of your car.

EARLY-IMPALA LS2 SWAP

Low in its architecture and functionally beautiful, the LS2 engine is an ideal replacement for a previous generation of Chevy powerplants. It offers good
performance, greatly improved economy and plenty of support from an industry leaders.

The Injection Connection

In 1999, Stotts decided to replace the carbureted 350, which was installed in 1991, with a Corvette TPI motor. Stotts wanted to bring the car into the new millennium with style, adding the extra convenience of electronic fuel injection. A resident of Mena, Arkansas, Stotts visited nearby Street & Performance to get started on his project. The S&P guys are well-known for being wizards when it comes to figuring out how to stuff an EFI motor in an older car and actually making it work.

WHERE’S THE POWER?

Bob Gruitch just thought his car was not performing up to his expectations. A ’55 Chevy equipped with a 502 big block, square port heads and a Crane H296-2 camshaft should be more than enough power. But it lacked power and didn’t idle all that well, especially in gear. This shouldn’t be happening with an engine built by John Gianoli at Reggie Jackson’s High Performance Engine Shop, so Gruitch figured he had something wrong and brought the car to John Bishop’s Hot Rod Tuning Service to have it checked. He’s lucky that he did.

LS is MORE

When GM introduced the Gen III small block in the F-body, it rekindled a dying performance flame with its new-generation small block. While the Gen I small block actually kick-started the hobby and got it into gear, it’s the latest family of small-block engines that has grabbed the attention of enthusiasts everywhere—and for good reason.

Choosing The Right Cam

Cam-speak is a language all its own. Well, maybe not from a linguistic point of view, but it is a specialized dialect of car-guy talk. Although spoken by a good portion of enthusiasts, Cam-speak is really fully understood by only a handful of those same enthusiasts, as it is a very specialized, nuanced dialect. Those who do not speak the lingo can instantly be singled out. Those who are fluent in cam-speak are listened to intently, even when those listening do not fully comprehend whatʼs being said and how to apply it to their particular applications. Few within our ranks are particularly fluent in this highly specialized jargon.

How to Choose a Camshaft

Would you believe that one of these cams could provide an extra 200 hp to your combination? It’s true. Actually, the truth is that the installation of a stock cam will cost you as much as 200 hp.

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