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Big Block Performance Engines

ZZ427/480HP

Possible Applications*

- A COPO clone Camaro
- Your favorite '61 Impala
- A Stingray with a big stinger

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances.

Performance
Click Here for a special $200 offer on your next performance engine

ZZ427/480HP

#19331572

Regular - $15,965

Sale - $14,450

The 427 rat in a box returns to GM!

Whats Hot?

- 480 horse
- Pump gas friendly
- 24-month GMPP warranty

There are few engines that conjure up images of greatness like the 427 Chevy big block. New to the GM Performance Parts lineup, the ZZ427 big block crate engine brings back all of the good things that you remember about the 427 with a few modern new upgrades. With an updated cast iron block, a 9.5:1 final compression ratio, and an aggressive hydraulic roller camshaft, the ZZ427 offers you outstanding performance while still living on low octane fuel.

The legendary 427-inch big block Chevy powered some of the most storied cars in the history of the high performance automobile. This latest version holds true to that tradition, offering you a tough, 4-bolt main cast iron block with all a forged internal rotating assembly.

The top half of the engine is that same as the limited edition Anniversary 427 crate engine: oval-port heads that use 2.19-inch intake and 1.88-inch exhaust valves work with 1.7:1 aluminum roller rockers and a .510-inch intake/.540-inch exhaust camshaft. The intake is a matching, high-flow oval-port aluminum piece that gets fed the air/fuel mix from a 870 cfm carburetor. An HEI distributor, aluminum water pump, spark plug wires, and a 14-inch flexplate round out the package. Internally balanced, the ZZ427 will spin to 6000 rpm before it's time for you to shift.

The ZZ427 is an exciting trip back to one of the highpoints in the history of the Chevrolet big block. With a conservative 480 horsepower and loads of torque, it's still one of the best crate engines for just about any big block application.

Call: (403) 329-6911 | Text: (403) 308-2501


 

ZZ502 Deluxe

Possible Applications*

- Any vehicle that needs big-time power
- Big-block bracket racing
- Powerplant for a big-displacement street rod

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances.

Performance
Click Here for a special $200 offer on your next performance engine

ZZ502 Deluxe

#19331579

Regular - $13,155

Sale - $11,645

Build-it-yourself kit of GM Performance Parts' 502" Rat!

Get this "beast in a box" and then finish it to your satisfaction! GM Performance Parts has put together the ZZ502 Base as a convenient partial engine assembly. You get the big-block V-8, four-bolt main muscle and just enough of the "finish work" to take the headache out of choosing parts – without missing out on the fun stuff!

The Base Engine, which boasts 4.47" bores and is stroked to 4.00", comes with aluminum, oval port cylinder heads with generous 110 cc combustion chambers. Its big time valvetrain features 2.25" intake and 1.88" exhaust valves to keep it breathing easy! The crankshaft is forged steel and is paired up with a hydraulic roller camshaft for great performance.

All you need to add is attitude – and an intake manifold, carburetor, water pump, distributor and plug wires. Everything but the attitude is available from Davis Buick GMC Lethbridge.

Call: (403) 329-6911 | Text: (403) 308-2501


 

Ram Jet 502

Possible Applications*

- Build a fuel-injected '55-57 shoebox
- Go high tech with your '32 hot rod
- Restification for a show car

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances.

Performance
Click Here for a special $200 offer on your next performance engine

Ram Jet 502

#12499121

Regular - $16,265

Sale - $14,755

With an 11" fuel-injected intake manifold flexing out of the top of a 502" big-inch Rat, the GMPP Ram Jet 502 is just plain cool. Not only attractive, the Ram Jet intake adds a significant amount of function to the big-block with amazing throttle response that you just have to experience to believe. Combining our aluminum-headed 502 with a modern fuel-injected intake results in 502 horsepower and 565 lb.-ft. of neck-snapping torque. With the Ram Jet intake, you also have over 500lb.-ft. of torque available from 2200 rpm on up.

Without question, that big, fuel injection intake stands out the most on the Ram Jet 502. Functional as it is attractive, the Ram Jet intake system enhances the already impressive torque band of the 502. The intake gobbles up air and stuffs it into the awaiting cylinders with incredible efficiency. The impressive intake only sits a half-inch taller than a comparable carbureted system with a high-rise intake manifold, Holley four-barrel carb and air cleaner.

The Ram Jet 502 features a 4.00" forged crankshaft, 4.47" forged aluminum pistons, forged rods, and a roller camshaft. The aluminum heads are our highly efficient oval-port intake design, and they utilize 2.25" intake and 1.88" exhaust valves. Underhood clearance at the throttle body should be checked for interference.

Call: (403) 329-6911 | Text: (403) 308-2501


 

ZZ572/620HP Deluxe

Possible Applications*

- The ultimate hot rod starting point
- Pump gas drag racing-just add spray
- Wake up the neighborhood-anytime
- Only install if you want to be the biggest dog on the porch

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances.

Performance
Click Here for a special $200 offer on your next performance engine

ZZ572/620HP Deluxe

#19331583

Regular - $19,675

Sale - $18,150

Big-block performance with torque to spare.
When you're ready to really step it up, it's time for the GM Performance Parts ZZ572 and it's massive 620 horsepower and 650 lb.-ft. of torque! This is flat-out, the baddest street Rat available that still happily runs on pump gas. The ZZ572/620 features 572 cubic inches of pure big-block and ships to your door in the coolest collection of orange, chrome, and aluminum you've ever seen.

There are several custom-designed components that make the ZZ572/620 the king of the street. It has a strong, 4-bolt block that was created with a 4.560" bore just for the 572" displacement. The 572 block is fortified with a forged crank, forged rods, forged pistons – everything was designed to offer you the ultimate big-block experience. To feed all of those hungry cubes, we topped it off with a single-plane intake manifold that has been port-matched to the rectangular-port aluminum heads. A custom, hydraulic roller camshaft uses .632" lift perimeters to lead the charge. We make no apologies if the loping, aggressive idle of this camshaft attracts attention.

The Deluxe ZZ572/620 comes complete from oil pan (with windage tray) to carburetor, including an 850-cfm Demon four-barrel, HEI distributor, red spark plug wires, aluminum short-style water pump, and automatic transmission flexplate. It's the ideal combination of big-block parts –designed, validated to GMPP standards, and tested in real world applications.

If you are in Alberta, and you need some serious muscle, this is the GM Performance Engine you need. This is sure to power whatever you have in the garage, and smoke the competition. Davis GM in Lethbridge is the place to go to get whatever you need installed on your ride. We are the Premiere Accessory specialists for GMC, Buick, and Chevrolet vehicles in Lethbridge, Calgary, Southern Alberta, and Canada.

Call: (403) 329-6911 | Text: (403) 308-2501

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Friday: 8:00am - 6:00pm

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Sunday: Closed

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Saturday: 8:00am - 5:00pm

Sunday: Closed

Monday - Friday: 8:00am - 6:00pm

Saturday: 8:00am - 5:00pm

Sunday: Closed

Monday - Friday: 8:00am - 5:30pm

Saturday: Closed

Sunday: Closed

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