GM Performance Engine Assembly, Crate Engine, ZZ-454, 440 hp, 454 c.i.d., Each
Part Number:GMP-12498777
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GM Performance Engine Assembly, Crate Engine, ZZ-454, 440 hp, 454 c.i.d., Each (PART #GMP-12498777)
GM Performance ZZ454/440 long block crate engines offer tremendous value in a big block powerplant. They're based on the Gen VI 4-bolt mains with one-piece rear main seal blocks.
Specs and features include:
- Approximately 9.6:1 compression
- 469 hp at 5,500 rpm
- 519 lbs.-ft. of torque at 3,7000 rpm
- Forged steel externally balanced crankshafts
- Forged steel connecting rods
- Forged aluminum pistons
- Hydraulic roller camshafts with .510 in. intake lift, .540 in. exhaust lift, 211A intake and 230A exhaust duration at .050 in., and 112 degree lobe centerline
- Aluminum cylinder heads with oval port 110cc combustion chambers
- 290cc intake runner volume with 2.190 in. intake valves and 1.88 in. exhaust
- Heads configured for 7/16 in. rocker arm studs
- Stamped steel, self-aligning, 1.7:1 ratio rocker arms
- ACDelco spark plugs
- Oil pan
- Black powdercoated aluminum valve covers and timing cover
- Long-style cast iron "V" belt rotation water pump
- 8 in. harmonic balancer
- 14 in. automatic flexplate
SPECIFICATIONS |
|
| Brand | GM Performance |
| Manufacturer's Part Number | 12498777 |
| Part Type | Crate Engines |
| Product Line | GM Performance ZZ454/440 Long Block Crate Engines |
| Crate Engine Family | Chevy Big Block |
| Actual Engine Displacement | 7.4L/454 |
| Crate Engine Cylinder Head Material | Aluminum |
| Assembled | Yes |
| Engine Balance | External |
| 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 | No |
| Throttle Body Included | No |
| Distributor Included | No |
| 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 | No |
| 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. |
