1970 Pontiac 455 Engine Specs

Engine Configuration

The 1970 Pontiac 455 engine was a powerful V8 engine that was widely used in various Pontiac vehicles during that era. Let’s take a closer look at its specifications and configuration.

Engine Specifications

To better understand the Pontiac 455 engine, let’s delve into its detailed specifications:

Specification Value
Engine Type V8
Displacement 455 cubic inches (7.5 liters)
Compression Ratio 10.5:1
Bore x Stroke 4.152″ x 4.210″
Valvetrain OHV (Overhead Valve)
Power Output 360 horsepower @ 4,600 RPM
Torque 500 lb-ft @ 3,100 RPM
Induction System Quadrajet 4-barrel carburetor
Ignition System Points-type ignition
Fuel Requirement Regular unleaded gasoline

Engine Oil Specs & Service Intervals

Proper engine oil specifications and regular maintenance are crucial for the longevity and performance of any engine, including the Pontiac 455. Here are the recommended engine oil specifications and service intervals for the 1970 Pontiac 455 engine:

Engine Oil Specifications

– Oil Type: It is recommended to use a high-quality, multi-viscosity engine oil with a viscosity grade of 10W-30 or 10W-40.
– Oil Capacity: The engine oil capacity for the Pontiac 455 is approximately 5 quarts (including the oil filter).

Service Intervals

– Oil Change: It is advisable to change the engine oil and oil filter every 3,000 to 5,000 miles or every six months, whichever comes first.
– Oil Filter Replacement: The oil filter should be replaced during every oil change to ensure proper filtration and engine protection.
– Lubrication: Regularly lubricate the chassis components and perform a thorough inspection to identify any signs of wear or damage.

Remember, following the manufacturer’s recommendations and using high-quality engine oil will help maintain the optimal performance and reliability of your Pontiac 455 engine.

In conclusion, the 1970 Pontiac 455 engine was a formidable V8 engine that offered impressive power and torque. Its specifications, including displacement, compression ratio, and valvetrain configuration, contributed to its performance capabilities. Adhering to the recommended engine oil specifications and service intervals will help ensure the longevity and smooth operation of this iconic engine.

Categories: 7.5Pontiac

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