Chevy 3100 / SSR - Engine Swap

Chevy SSR 5.3-liter Vortec V8 Chevy SSR 5.3-liter Vortec V8

The stock 5.3-liter Vortec V8 was rated at 285+ horsepower. Not nearly enough. So we're replacing it with a 427 cubic-inch LS2. The first step is to peel away the layers of wiring harness, etc. These new-fangled modern automobiles have just way too much of that stuff if you ask us.

Rodent nest under the manifold. Nuts!

Some things never change though... Leave any car sitting long enough (new or classic barnyard find), and some critter will make a home in it. When the intake manifold was removed we found evidence of rodents having made a home underneath it. Nuts anyone?

Chevy SSR 5.3-liter Vortec V8, out of vehicle. Chevy SSR 5.3-liter Vortec V8, in stand

Out with the old...

427 LS2 427 LS2

In with the new...

The new aluminum 427 sports a pair of AFR 225cc cylinder heads, Callies cranks and rods, and Wiseco pistons. This motor is supposed to make 600hp and 600 ft lbs. of torque, but we'll find out for sure when we put it on the Dyno.

Engine and transmission ready to go into the SSR

The transmission was sent to Horizon Performance Drivetrain to get beefed up so it could handle the extra HP and Torque.

AFR 225cc cylinder heads MTI LS2

01 - 02 - 03 - 04 - 05 - 06 - 07 - 08 - 09 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30


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Hot Rods & Custom Stuff, 2324 Auto Park Way, Escondido, CA., 1-800-HOT-ROD-5.

Hot Rods & Custom Stuff - builds, restores, paints, services and sells parts for classic autos, cars, trucks and street rods.