2023 COPO Camaro 632 - Page 2

Tom P · 01-07-2023, 05:39 PM

Chevy makes a big deal about those engines making 1000hp.... why can't it be rated at that? I'm sure with the allowable overbore and cam duration and blueprinting it should be OK. It's as legit a Stock combination as the injected 427 SOHC flip top 67 Comets are...

Brett C · 01-07-2023, 04:35 PM

Quote:

Originally Posted by GUMP

We received the first 572 COPO in February last year and had it at a track two days later. So, I have quite a bit of experience with this combination.

It is probably the most consistent COPO that I own.

The throttle body is the same one that's on my 302. The cylinder heads are the same castings as the 396/375. I have a pretty good idea of how Chevrolet's test session went. I also have my own data. I ordered the car with the understanding that the HP would be 430. The 500 HP rating that the combination was given is a big disappointment to us.

As delivered, the 572 made just a little over 720 HP on Jeff's engine dyno. My 302 made right around 600 HP on Holley's when I lent it to them to test the Terminator X.

I have no doubt that there is room to pick the combination up. We are experimenting with some stuff right now. I just can't bring myself to throw a big pile of money at this car.

Gump!
Come now!
I saw that combo go 8.7’s in SS trim with my own eyes!

GUMP · 01-07-2023, 04:42 PM

Quote:

Originally Posted by Brett C

Gump!
Come now!
I saw that combo go 8.7’s in SS trim with my own eyes!

Yep, a BIG pile of money that got HP for the showing.....

Each to their own, but not what I want to do with the money I earn.

JeremyDuncan · 01-07-2023, 04:54 PM

Quote:

Originally Posted by GUMP

Yep, a BIG pile of money that got HP for the showing.....

Each to their own, but not what I want to do with the money I earn.

The 572 2022 COPO Camaro would have received a HP reduction if it was submitted for review in Stock eliminator.

GUMP · 01-07-2023, 05:07 PM

Quote:

Originally Posted by JeremyDuncan

The 572 2022 COPO Camaro would have received a HP reduction if it was submitted for review in Stock eliminator.

We talked about that, but in the end we decided not to request one.

01-07-2023, 05:39 PM	#1
Tom P Senior Member Join Date: Mar 2002 Posts: 707 Likes: 30 Liked 239 Times in 94 Posts	Re: 2023 COPO Camaro 632 Chevy makes a big deal about those engines making 1000hp.... why can't it be rated at that? I'm sure with the allowable overbore and cam duration and blueprinting it should be OK. It's as legit a Stock combination as the injected 427 SOHC flip top 67 Comets are...