GM Performance Engine Assembly, Crate Engine, Chevy 427, 480 hp, 490 lbs./ft Torque, ZZ427/480 ,
Part Number:GMP-19166393
GM Performance Engine Assembly, Crate Engine, Chevy 427, 480 hp, 490 lbs./ft Torque, ZZ427/480 , Each (PART #GMP-19166393)
GM Performance has recreated the classic L88 Big Block combination in the ZZ427/480 long block crate engine. Rated at 480 hp, it features an iron block, forged steel crankshaft, and high-flow aluminum cylinder heads. An upgraded hydraulic roller camshaft improves drivability and rpm range, while lower 10.1:1 compression means you can enjoy the power on pump gas, too.
The ZZ427 comes complete with: high-flow oval port heads, a high-lift camshaft, aluminum intake manifold, 770 cfm Holley carburetor, an HEI distributor, aluminum water pump, balancer, spark plug wires, and a 14 in. flexplate. If you're looking for a modern version of the classic L88, the GM Performance ZZ427/480 long block crate engine is the answer.
Additional specs and features include:
- 4.250 in. bore with 3.750 in stroke
- Cast iron block with 4-bolt main caps
- Forged steel crankshaft
- Forged steel connecting rods
- Forged aluminum pistons
- Hydraulic roller camshaft:
- Valve lift .527 in. intake/.544 in. exhaust
- Duration (.050 in) 224 intake/ 234 exhaust
- Aluminum oval port heads with 110cc chambers
- 2.190 in. intake/1.880 in. exhaust valves
- 10.1:1 compression ratio
- Aluminum 1.7:1 ratio roller rocker arms
- HEI distributor
- 770 cfm carburetor
- Aluminum short water pump
- Ignition timing base 10 degrees BTDC, 36 degrees total
- 6,400 maximum recommended rpm
SPECIFICATIONS |
|
| Brand | GM Performance |
| Manufacturer's Part Number | 19166393 |
| Part Type | Crate Engines |
| Product Line | GM Performance ZZ427/480 HP Long Block Crate Engines |
| Crate Engine Family | Chevy Big Block |
| Actual Engine Displacement | 7.0L/427 |
| Crate Engine Cylinder Head Material | Aluminum |
| Assembled | Yes |
| Engine Balance | Internal |
| Cam Style | Hydraulic roller, OE roller |
| Rear Main Seal Style | 1-piece |
| Intake Manifold Included | Yes |
| Intake Manifold Style | Carbureted |
| Cylinder Heads Included | Yes |
| Carburetor Included | Yes |
| Throttle Body Included | No |
| Distributor Included | Yes |
| Oil Pan Included | Yes |
| Valve Covers Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | Yes |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | Yes |
| Computer Included | No |
| Wiring Harness Included | No |
| Supercharger Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty. Clutch linkage bosses are drilled and tapped, plus includes a provision for a mechanical fuel pump. |
