Big Block Performance Engines

Regular - $54,352.47
Sale - $43,349.00

Chevrolet’s Biggest, Baddest
Big-Block Ever!

Chevrolet Performance’s ZZ632 takes the legendary Big-Block to all-new thresholds
of displacement performance. It’s the largest Big-Block we’ve ever built—and with an
incredible 1,004 horsepower and 876 lb.-ft. of torque on 93-octane pump gas, it’s also
the most powerful! The ZZ632 starts with one of our tall-deck Sportsman Bowtie blocks as its
foundation, adds an all-forged roller assembly, a hydraulic roller camshaft and
all-new, high-flow spread-port cylinder heads derived from Pro Stock racing
technology. An EFI induction system provides the precise fuel control to enable
the crate engine’s stunning output with pump gas.

Our Deluxe package comes complete from the oil pan to the throttle body, as well as a
crank-trigger ignition system with coil-near-plug ignition coils mounted on a unique
valley plate, plug wires, water pump, balancer and an aluminum single-plane intake
manifold. The assembly also includes Chevy Orange valve covers with the “632” logo.

ZZ632/1000

What's hot?

• Tall-deck Bow Tie Block
• Forged Rotating Assembly
• Crank-Trigger Ignition and EFI
• .780 Lift Hydraulic Roller Cam
• 1,004 Horsepower
• 876 Lb-Ft Torque
• Pump Gas Friendly!

Let Us Answer Your Questions
Parts Direct -403-527-2787

ZZ427/480

What's Hot?

• Forged Rotating Assembly
• Full-Roller Valvetrain
• Complete From Carb To Pan
• 480 Horsepower
• 490 Lb-Ft Torque
• 2 Year/80,000km Warranty

Let Us Answer Your Questions
Parts Direct -403-527-2787

Regular - $24,755.60
Sale - $19,795.00
The Classic L88 427 Updated For The 21st Century!

The L88 427 was the ultimate expression of Chevy’s production Big-Block power, combining a rigid iron cylinder block with lightweight aluminum cylinder heads and a single, four-barrel carburetor. Our engineers have recreated that classic, raspy rat engine, but with updated components that enhance drivability – and performance!

Our engine assembly features the latest-generation block casting with four-bolt main caps, an all-forged rotating assembly for exceptional strength and durability, and a hydraulic roller camshaft instead of the original L88’s flat tappet cam, for greater drivability and a broader performance range. It also features aluminum oval-port cylinder heads with 2.19/1.88-inch valves and a pump-gas-friendly 10.0:1 compression ratio.

Whether you’re building a ’69 COPO Camaro resto-mod tribute, a modified mid-year Corvette or a street-tire class winner, this heritage-inspired crate engine delivers the performance that built the Big-Block’s legendary reputation.

Regular - $14,220.56
Sale - $11,395.00

It's 1970 all over again!

Chevrolet Performance’s 454 HO crate engine is a classic in its own time, offering enthusiasts an affordable Big-Block combination with performance specs that will make you think it’s 1970 all over again – with 425 horsepower and 500 asphalt-wrinkling lb.-ft. of torque.

The foundation of the 454 HO is a brand-new, updated cylinder block, which incorporates many strength and performance design enhancements – making it a smart and economical alternative to rebuilding. We also add an all-forged reciprocating assembly for maximum durability, a roller camshaft and a set of rectangular-port iron cylinder heads.

We deliver the 454 HO with a water pump, balancer, 14-inch flexplate and aluminum intake manifold. Add a carburetor, ignition system and starter and your budget Big-Block will be ready to roar. All of the necessary parts are available from Davis GMC Buick.

454HO

What's Hot?

• Forged Rotating Assembly
• Rectangular Port Heads
• Hydraulic Roller Cam
• 438 Horsepower
• 500 Lb-Ft Torque

Let Us Answer Your Questions
Parts Direct -403-527-2787

502HO

What's Hot?

• Forged Rotating Assembly
• Rectangular Port Heads
• Hydraulic Roller Cam
• 461 Horsepower
• 558 Lb-Ft Torque

Let Us Answer Your Questions
Parts Direct -403-527-2787

Regular - $12,954.06
Sale - $10,349.00

Affordable Big-Block Performance with huge torque and 450 HP!

What will you do with 461 horsepower and 558 lb.-ft. of torque from Chevrolet Performance’s value-driven 502 HO crate engine? Whether you use it on the street, strip or even pulling a trailer with your workhorse truck, its performance range offers unlimited possibilities. In fact, it makes nearly 500 lb.-ft. by only 1,500 rpm, meaning it has all the low-rpm grunt you can use!

To support all that torque, we build this Big-Block with our latest-generation block casting with four-bolt main caps and complement it with an all-forged rotating assembly for exceptional strength and durability. A hydraulic roller camshaft is used for excellent drivability and a broad performance range, and an 8.75:1 compression ratio is suitable for regular pump gasoline at all altitudes and engine loads.

Our crate engine assembly includes an aluminum, dual-plane intake manifold, a water pump, 14-inch flexplate, balancer and more. You add the carburetor, starter and ignition system – all available from Davis GMC Buick, Medicine Hat.

Regular - $19,053.05
Sale - $15,249.00

Our Most Popular Big-Block Crate Engine For The Street And Strip!

Chevrolet Performance’s ZZ502/502 is one of the industry’s benchmark crate engines, offering excellent value with a proven combination of performance that is suitable for the street or strip. With more than 500 horsepower and 580 lb.-ft. of torque, it demands your full attention and a chassis that is strong enough to harness its frame-straining twisting power.

All ZZ502 crate engines are manufactured with GM’s updated cylinder block casting that is stronger and better supports high-performance applications. A forged crankshaft, along with forged rods and pistons, anchors the bottom end, while our popular oval-port aluminum heads offer excellent airflow characteristics. Torque tops the 500 lb.-ft. mark by approximately 2,500 rpm and doesn’t dip below it until about 5,000 rpm.

Our ZZ505/502 Deluxe package comes complete from the oil pan to the carburetor, including an HEI distributor, plug wires, starter, water pump, balancer and an aluminum intake topped with a Holley 870-cfm four-barrel.

We’ve taken care of the engine’s details. You need to make sure your car can handle the ZZ502/502!

ZZ502/502 Deluxe

What's Hot?

• Aluminum Oval Port Heads
• Complete from Carb To Pan
• Hydraulic Roller Cam
• 508 Horsepower
• 580 Lb-Ft Torque
• 2 Year/80,000KM Warranty

Let Us Answer Your Questions
Parts Direct -403-527-2787

ZZ502 Base

What's Hot?

• All Forged Rotating Assembly
• Oval-Port Aluminum Heads
• Hydraulic Roller Cam
• 508 Horsepower*
• 580 Lb-Ft Torque*
• 2 Year/80,000KM Warranty

Let Us Answer Your Questions
Parts Direct -403-527-2787

Regular - $14,603.09
Sale - $11,695.00

A DIY FOUNDATION FOR BIG TORQUE!

We offer the ZZ502/502 Base crate engine for the builder who wants the super-strong bottom end and high-flow aluminum oval-port cylinder heads, but also wants to finish the engine his or her way. It’s a great foundation and it’s up to you to make the most of it!

Like our complete ZZ502/502 Deluxe crate engine, a set of high-flow aluminum oval-port cylinder heads and a hydraulic roller camshaft designed to support low-rpm torque production enable it to hit the 500 lb.-ft. mark by approximately 2,500 rpm and hold it above the mark until around 5,000 rpm. It also features a latest-generation block casting with four-bolt main caps and an all-forged rotating assembly for exceptional strength and durability.

We rate the ZZ502/502 Base engine at 508 horsepower and 580 lb.-ft. of torque when it is finished with Chevrolet Performance aluminum intake manifold P/N 12363406 and Holley 870-cfm carburetor P/N 19170094.The other parts you need to complete the engine—including chrome dress-up parts—are available from Davis GMC.

Regular - $29,858.14
Sale - $23,895.00

The Most Powerful Big-Block Street Engine From Chevrolet Performance!

The ZZ572/620 is the ultimate expression of Chevrolet Performance’s engineering capability. We build the ZZ572 with huge 4.560-inch bores and add a forged 4.375-inch-stroke crankshaft. To make sure those cylinders are packed with every cubic centimeter’s worth of atmosphere, we use a camshaft with incredible 0.632/0.632-inch lift and 254°/264° duration specifications.

Aluminum rectangular-port heads with 310cc intake passages complement the airflow capability offered by the big-bore bottom end. They also feature 118cc raised exhaust ports and 118cc combustion chambers. The valves are big, too – measuring 2.250 inches on the intake side and 1.880 inches on the exhausts.

Davis GMC Buick delivers the ZZ572/620 Deluxe with an 850-cfm carburetor, HEI distributor, aluminum water pump and distinctive orange powder-coated valve covers that proudly proclaim the 572 legend.

ZZ572/620 Deluxe

What's Hot?

• Tall-Deck Bow Tie Block
• Aluminum Rectangle Port Heads
• Forged 4340 Crank
• Forged H-Beam Rods
• .632 Lift Hydraulic Roller Cam
• Pump Gas Friendly
• 621 Horsepower
• 645 Lb-Ft Torque
• 2 Year/80,000Km Warranty

Let Us Answer Your Questions
Parts Direct -403-527-2787

ZZ572/720R Deluxe

What's Hot?

• Baddest Rat On The Block
• Roller Cam With .714 Lift
• 721 Horsepower
• 680 Lb-Ft Torque
• The R Stands For RACE!

Let Us Answer Your Questions
Parts Direct -403-527-2787

Regular - $32,113.42
Sale - $25,695.00

An Assault Weapon for the Strip!

Don’t wait weeks or months for a custom drag racing engine. The ZZ572/720R is the king of all Rat engines and is capable of pulling your bracket racer or heads-up challenger down the drag strip in the 9-second range. We deliver it fully assembled. You simply bolt on the included Dominator-style 1090-cfm carburetor, along with a starter and fuel pump (not included) and you’re ready to go! With 727 hp at 6,300 rpm and 680 lb.-ft. at 4,900 rpm, you’ll make quite an impression.

The engine assembly is all-business, starting with a latest-generation tall-deck block casting with four-bolt main caps, and an all-forged rotating assembly for exceptional strength and durability. A unique mechanical roller camshaft with 0.714/0.714-inch lift and 278/282-degree duration specifications complements high-flow aluminum rectangular-port cylinder heads with massive 310cc intake passages, 118cc raised exhaust ports and 118cc combustion chambers, moving big air through the engine efficiently to make huge power!