Engines
GM engines have earned a worldwide reputation for excellent performance and durability – on the street, on racetracks, and around the globe. GM Performance Parts offer a number of high-performance engines, and we can help you find the best fit for your GM vehicle. To obtain a comprehensive list of our available engines, please contact a GM Canada Dealer.
Highlights
GMR 350/400 "LIMITED LATE MODEL" CIRCLE TRACK ENGINE
ZZ454/440 440 HORSEPOWER WITH ALUMINUM HEADS
ZZ572/620 GM'S MOST POWERFUL STREET ENGINE
ZZ572/720R …AND THE R STANDS FOR RACE
GMR 350/400 "Limited Late Model" Circle Track Engine - 88958604
Great racing power at a reasonable cost.
(400 HP at 5500 RPM - Torque 400 @ 4500 RPM)
This is a factory sealed crate engine package, complete from intake manifold, stamped steel valve covers with racing style breathers, and 8-quart dual kick-out circle track racing oil pan. The Fast Burn 400 engine is a great value with the 1053 forged steel crankshaft, aluminum heads with 2.00-/1.55-inch valves, hydraulic roller lifters, HEI distributor, and normal rotation iron water pump included.
The base engine is a Fast Burn 350ci 385 horsepower, with the following parts:
P/N 10105123 4 bolt iron block
P/N 14088533 1053 steel crankshaft
P/N 10108688 PM rod
P/N 10159436 High silicon aluminum piston
P/N 10185071 Camshaft with hydraulic roller lifters
P/N 12464298 Aluminum head
P/N 12496822 High rise single plane intake manifold
P/N 1104067 HEI distributor
P/N 25534354 8 quart circle track oil pan (with oil filter)
P/N 25534359 Valve cover kit with breather tube
P/N 25534355 Valve cover breather kit
P/N 25534352 Special rocker arm nut "kool nut design"
Technical Note: These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special twist off bolt heads. The 400 HP @ 5500 RPM was derived from a superflow dyno using a 4 barrel 650 cfm Holley carburetor P/N 80541-1, 32-inch long by 1-5/8-inch to a 1-3/4-inch stepped header with a 3" collector, and 92 octane unleaded gasoline. Oil pan clears most GM rear steer chassis with stock engine location. Oil pan is 7" deep at sump.
Fast Burn 400 Technical Information
| Horsepower | 400 @ 5500 RPM |
| Torque | 400 @ 4500 RPM |
| Max. Recommended RPM | 5800 RPM |
| Compression Ratio | 9.6:1 |
| Block | 10105123 Four bolt main, cast iron |
| Crankshaft | 12556307 Forged Steel |
| Connecting Rods | 10108688 PM rods |
| Pistons | 10159436 High silicon aluminum with offset pins |
| Piston Rings | 12528817 |
| Camshaft | 10185071 Hydraulic Roller Lift .474/.510" Duration @ .050, .208/.221 |
| Cylinder Heads | 12464298 Aluminum 62cc combustion chambers |
| Intake Valves | 12555331 2.00" |
| Exhaust Valves | 12551313 1.55" |
| Valve Springs | 12551483 LT4 chrome silicon |
| Rocker Arms | 10089648 |
| Intake Manifold | 12496822 Aluminum single plane |
| Valve Lash | Zero |
| Spark Plugs | FR 5LTS Gap @ .035, Rapid Fire #5 Gap .045 |
| Fuel | 92 Octane |
| Ignition Timing | 10° BTDC @ 800 RPM 32" total @ 4000 RPM with vacuum advance disconnected |
Technical Notes: Carburetor, spark plug wires, starter, oil filter and oil filter adapter, and exhaust manifolds not included. Distributor P/N 1104067 or melonized distributor gear P/N 10456403 must be used on all crate engines with steel camshafts.
ZZ454/440 440 HORSEPOWER WITH ALUMINUM HEADS - 12498777
The ZZ454/440 offers tremendous value in a big-block crate engine. Based on the proven 454 HO with its Gen VI 454 block, the addition of GM Performance Parts Signature series aluminum heads reduces weight and increases horsepower to 440, up from the 454 HO's 425.
The ZZ454 shares its forged crankshaft and connecting rods with GMPP's 454 HO and the family of famous 502 crate engines, so you know it's strong. Forged pistons fill the block, and a steel roller camshaft times the valves. Complete with dual plane intake manifold, water pump, torsional damper and automatic transmission flexplate, the ZZ454 is one value packed big-block crate engine.
With its throttle responsive 9.6 to 1 compression ratio, the gas-pump friendly ZZ454 is a great choice for muscle cars, bracket racers and off-road truckers. Just add your 850 CFM carb, GM HEI distributor, and 2-1/4-inch primary headers and you're ready to rip.
The ZZ454/440 is intended for use in 1978 and earlier pre-emission street vehicles, and any year off-road vehicles.
ZZ 454/440 Technical Information
| Horsepower | 440 @ 5250 RPM |
| Torque | 500 @ 3250 RPM |
| Max. Recommended RPM | 5500 RPM |
| Compression Ratio | 9.6:1 |
| Block | 12550307 Cast Iron - Four bolt mains |
| Crankshaft | 14096983 Forged Steel |
| Connecting Rods | 10198922 Forged Steel |
| Pistons | 10215228 Forged Aluminum |
| Piston Rings | 12523921 |
| Camshaft | 24502611 Hydraulic roller Lift: .510" I, .540" E. Duration @ .050: 211° I, 230° E. |
| Timing Chain | 10114177 Single Roller |
| Cylinder Heads | 12363390 Cast aluminum 110cc combustion chambers |
| Intake Valves | 12366986 2.19" |
| Exhaust Valves | 12366988 1.88" |
| Valve Springs | 12462970 |
| Rocker Arms | 12368082 1.7:1 |
| Torsional Damper | 10216339 8" |
| Flexplate | 10185034 14" |
| Valve Lash | Netlash |
| Fuel | 92 Octane |
| Spark Plugs | MR43T Gap .045, #10 Rapid Fire Gap .045 |
| Ignition Timing | 4° BTDC |
Technical Notes: For manual transmission applications use flywheel 14096987 and a suitable 11" clutch assembly. Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts.
ZZ572/620 WITH GEN VI TALL DECK BLOCK — 12498793
The new ZZ572/620 is built around an all-new Gen VI tall deck Bow Tie cylinder block. This all-new race block is filled with a forged 4340 steel crank with 4.375 inch stroke, shot peened forged 4340 H-beam rods, and forged aluminum pistons with full floating wrist pins. Hard core race parts for hard core long term durability
The redesigned rectangular port aluminum cylinder heads result in a pump gas friendly 9.6 to 1 compression ratio. A hydraulic roller cam with 0.632 inch lift actuates the stainless steel valves. And, of course, hardened chromemoly retainers, roller rocker arms, and dual valve springs are used to complete the valvetrain.
A new GM tall deck single plane intake manifold and 850 CFM Demon carburetor deliver enough air and fuel to make the 620 horsepower at 5500 RPM and 650 lb.-ft. of torque at 4500 RPM. Ignition is handled by a GM HEI distributor.
Pump gas friendly, massive torque and horsepower, all from GM, the ZZ572/620 is for those who consider excess to be barely enough.
Available in both long block and deluxe engine configurations in 2003.
ZZ572/620 Technical Information
| Horsepower | 620 @ 5500 RPM |
| Torque | 650 @ 4500 RPM |
| Max. Recommended RPM | 6000 RPM |
| Compression Ratio | 9.6:1 |
| Block | New! Sportsman Tall Deck Bowtie Gen VI 10.200" deck height |
| Bore | 4.560" |
| Stroke | 4.375" |
| Crankshaft | Forged 4340 steel |
| Connecting Rods | Forged 4340 steel, H-beam style, Shot peened |
| Pistons | Forged aluminum, Full floating wrist pin |
| Piston Rings | Plasma-moly rings |
| Camshaft | Hydraulic roller Valve Lift: .632" I, .632" E Duration @ .050" 254° I, 264° E |
| Lifters | Hydraulic roller tappet |
| Cylinder Heads | Aluminum rectangular port 118cc combustion chamber |
| Intake Valves | 2.25" Stainless steel |
| Exhaust Valves | 1.88" Stainless steel |
| Valve Springs | Dual valve springs 1.540" coil diameter 1.800" installed height 197 lb. seat pressure |
| Spring Retainers | Hardened chromemoly steel |
| Rocker Arms | Aluminum roller rockers 1.7:1 ratio |
| Push Rods | High performance one piece |
| Intake Manifold | New! Aluminum tall deck single plane 4150 series carburetor |
| Carburetor | 850 cfm, mechanical secondary |
| Rear Main Seal | New! One piece design |
| Windage Tray | New! Screened and louvred |
| Damper | High RPM torsional damper |
| Distrubutor | H.E.I |
| Fuel | 92 Octane |
| Spark Plugs | R42XLS |
| Ignition Timing | 36° total advance |
ZZ572/720R EXCLUSIVELY FOR RACERS — 12498827
Engineered by GM Performance Parts and GM Racing exclusively for sportsman racers, the new ZZ572/720R is built around an all-new Gen VI tall deck Bow Tie cylinder block. This all-new race block is filled with a forged 4340 steel crank with 4.375 inch stroke, shot peened forged 4340 H-beam rods, and forged aluminum pistons with full floating wrist pins. Plasma-moly piston rings are standard as is the screened and louvred windage tray. GM's first purpose-built drag race engine is filled with hard core race parts for hard core performance and long term durability.
The redesigned rectangular port aluminum cylinder heads result in a race gas only 12 to 1 compression ratio. A solid roller cam with 0.714 inch lift actuates the stainless steel valves. And, of course, hardened chromemoly retainers, roller rocker arms, and dual valve springs are used to complete the valve train.
A new GM tall deck single plane intake manifold and 1095 CFM King Demon carburetor deliver enough air and fuel to make the 720 horsepower at 6250 RPM and 685 lb.-ft. of torque at 4500 RPM. Ignition is handled by a multiple spark discharge ignition. And an SFI-approved torsional damper is installed at the factory. Out of the crate and into your race car — it's just that simple.
Race gas fuelled, high revving horsepower, all from GM, the ZZ572/720R is the engine that will get you down the track consistently, pass after pass, season after season
Available in short block, long block and deluxe engine configurations in 2003.
ZZ572/720R Technical Information
| Horsepower | 720 @ 6250 |
| Torque | 685 @ 4500 |
| Max. Recommended RPM | 6750 RPM |
| Compression Ratio | 12:1 |
| Block | New! Sportsman Tall Deck Bowtie Gen VI 10.200" deck height |
| Bore | 4.560" |
| Stroke | 4.375" |
| Crankshaft | Forged 4340 steel |
| Connecting Rods | Forged 4340 steel, H-beam style, Shot peened |
| Pistons | Forged aluminum, Full floating wrist pin |
| Piston Rings | Plasma-moly rings |
| Camshaft | Mechanical roller Valve lift .714" I, .714" E Duration @ .050" 266° I, 274° E |
| Lifters | Mechanical roller tappet |
| Cylinder Heads | Aluminum rectangular port 118cc combustion chamber |
| Intake Valves | 2.25" Stainless steel |
| Exhaust Valves | 1.88" Stainless steel |
| Valve Springs | Dual valve springs 1.567" coil diameter 2.050" installed height 230 lb. seat pressure |
| Spring Retainers | Hardened chromemoly steel |
| Rocker Arms | Aluminum roller rockers 1.7:1 ratio |
| Push Rods | High performance one piece |
| Intake Manifold | Aluminum tall deck single plane 4500 series carburetor |
| Carburetor | 1095 cfm, mechanical secondary |
| Rear Main Seal | New! One piece design |
| Windage Tray | New! Screened and louvred |
| Damper | High RPM torsional damper |
| Distrubutor | Multiple spark discharge |
| Fuel | Race fuel |
| Spark Plugs | R42XLS |
| Ignition Timing | 36° total advance |