Is there a difference between a 455 and a 455 high performance?

Asked by Apr 27, 2019 at 11:50 AM

Question type: Car Customization

Just wondering if there was a
difference between a 455 and a 445
high performance or if it was just a
marketing thing.

10 Answers

269,515

What car, what year?

1 people found this helpful.
87,535

Any engine marked "high performance" is just that. It's higher power and torque than a standard engine. Might not be much, but it is more.

1 people found this helpful.

I just bought the engine and transmission so I don’t know what they came out of all I know that it’s a 1976

Also would anyone know how much hp it would have?

87,535

I'm confused about which engine you have. Pontiac's 455 was "High Output." Olds is a "Rocket 455." And Buick's was the "455 Stage 1." None were marked "High Performance."

1 people found this helpful.

This is the valve covers.

269,515

Looks like aftermarket valve covers.

269,515

Can't give us the make, model and year? Don't expect meaningful answers when you withhold all the pertinent information.

I just bought the engine and transmission. Guy I bought them from didn’t know what they were out of all I know that it’s a 1976 olds 455.

For some reason it won’t post the info! So I’ll try again! It’s a 1976 olds 455. Don’t know what it came out of.

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