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GM Big Block 454 HO High Output Engines
Now, this is the stuff that legends are made of. Big-block, street-sweeping power just like the 60s GM musclecars that you grew up with or have worshipped for years. Now, GM Performance Parts has a 454 cubic inch crate engine that is big on power and low on dollar. Lets take a look ...
We started with a brand new (not remanufactured or sourced from a scrap yard) Gen VI four- bolt big-block. The 454 HO is stuffed with a forged steel crank, forged connecting rods, and forged pistons. A hydraulic roller camshaft with .510/.540" lift generates a nasty idle. Cast iron cylinder heads deliver a pump-gas friendly 8.75:1 compression ratio.
Horsepower comes in at 425 with 500 lb.-ft. of big-block torque.
The 454 HO is delivered to you complete with water pump, balancer, intake manifold, and 14" automatic transmission flexplate. Add your carburetor, ignition, and starter to complete the engine. Check out the GM Performance Parts line of valve covers and chrome accessories to give the engine a more eye appealing, under hood look.
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Displacement- 454
- Bore x stroke- 4.25 x 4.00
- Block- cast iron 4-bolt main caps
- Pistons- forged aluminum
- Camshaft Type- hydraulic roller
- Camshaft Lift- .510 intake/.540 exhaust
- Camshaft Duration(@.050in)- 211 intake/ 230 exhaust
- Cylinder Heads- iron rectangle port, 118cc chambers
- Valve Size -2.19 intake/1.88exhaust
- Compression- 8.75:1
- Rocker Arms- stamped steel
- Rocker Arm Ratio- 1.7:1
- Ignition Timing- base 4 degrees btdc, 26 degrees total
- Recommended Fuel -92 octane
- Maximum RPM- 5500
- Balanced- external
- Horsepower- 425@5250
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Notes: |
This engine is not designed, nor intended to be used in any marine applications. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty. |
**This part is shipped via truck freight, additional shipping charges will apply. Multiple truck freight parts on an order may increase the shipping amount.
Note: Crate engine shipping charges have two components; Commercial Delivery (Free) & Residential Charge.
The commercial shipping delivery to a freight terminal or commercial address ((provided the commercial address has a forklift to unload the product). If the product is shipped to a residential address there is an additional cost of $300 for the use of a lift-gate vehicle. Please call USM (888-876-7223) for any questions.
Truck Freight: Most Truck Freight items have two standardized shipping rates, one rate to the terminal, another to your door. Additional fees apply for lift gate service; to avoid this you can choose terminal pickup.
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