LS3

I’m asking this for a friend and I know you will have suggestions. He’s building a ’71 El Camino and has decided on an LS swap. He wants 650-700 hp with an automatic. The LS9 is 635hp to start but no auto is recommended. As a crate engine, the LS9 would cost about $21,000 plus

The vintage Corvette community can place a lot of importance on originality, and things like factory-correct chalk marks, tank stickers, and matching numbers are a big, big deal. But after seeing what Jeff Monchilov did to this stunning 1972 Stingray, we’re confident he’d earn a hearty “thumbs up” from even the most hardened OE perfectionists.

(Updated 12/7/17) [Editor’s Note: This LS3 engine upgrade guide is the second in a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing. The LS3 engine is a Gen IV, 6.2L aluminum-block V8 car engine that first appeared in the 2008 Chevrolet Corvette. The L99—introduced for the 2010 Chevy

After three years of product development, Edelbrock unveiled its new Cross-Ram Intake Manifold for GM LS3 engines at the 2015 SEMA show in Las Vegas, NV. It’s a dual-plenum design optimized for forced-induction applications which features 13-inch-long, cross-ram-style intake runners. The lengthy runners help boost power and torque in the 6.2L, 376-cubic-inch, 430-horsepower LS3 engine.

[portfolio_slideshow id=38154] Light car + big engine = silly go-fast fun. Back in the 1940s and ‘50s it was Ford flathead, Olds, and Caddy V8s in Model As. Pontiac stuffed a 389 in a mid-size Tempest and ushered in the musclecar era with the 1964 GTO. Carroll Shelby’s 427-powered Cobras terrorized the competition (and probably

Bob’s 1953 Packard Caribbean convertible was already unique. Then he dropped an LS3 engine and 4L65E tranny in it, and topped it off with special “Packard”-etched coilover covers and valve covers. Bob’s father found the car in Wisconsin, wrenched on it for a while and, after he passed, Bob finished the job in time to

Smokey’s Dyno & Performance in Akron, OH isn’t the first shop to mate a GM LS engine with a BMW E30 (3 Series). “The E30 is a very popular chassis for an LS swap,” said Jamy Lippencott, vice president of Smokey’s Dyno & Performance. “Road course guys are taking stock LS motors and putting them