New Classes in Stock AAA/SA, AAA/S and FS/AAA

[GUMP]

Originally Posted by RKelliher

Nhra is now allowing 572 engines in 2022 copo camaro. Nhra rates this motor at 500hp. Also chevy rated it at 621hp not 500.

Do you think that Jim B's 396/375 HP Camaro makes 405 HP?

First the 572 was never installed in any chevy,it is a crate motor only.

The majority of 2022 COPOs were built with a 572.

For the record, the order form for my 572 COPO says "NHRA rated at 430 HP". It would have been a good combination at that HP. At 500 HP, I am not a fan.

[RKelliher]

First of all , Jim's was available of the assembly line with a 375hp 396. Your car was not off the assembly line and the 572 never came off the assembly line.Are they going to allow the 632 engine also, which is 1004hp from crate.

[BRETV]

IMHO, its easier to make HP with the older motors vs the newer motors, as far is gaining HP with Stock/ Superstock engine blueprint rules. The machining process back in the 60's, 70's and even 80's is far inferior compared to todays new motors from the factory. You just can't gain as much HP blueprinting the newer motors. So if the new combo does'nt have a favorable HP rating it will not be cometitive. Flame away. LOL



Bret Velde
2003 I/SA

[GUMP]

Yes the 632 is in the guide. Times have changed...

[Alan Roehrich]

Originally Posted by BRETV

IMHO, its easier to make HP with the older motors vs the newer motors, as far is gaining HP with Stock/ Superstock engine blueprint rules. The machining process back in the 60's, 70's and even 80's is far inferior compared to todays new motors from the factory. You just can't gain as much HP blueprinting the newer motors. So if the new combo does'nt have a favorable HP rating it will not be cometitive. Flame away. LOL



Bret Velde
2003 I/SA

It CAN be harder to GAIN HP with blueprinting and trick rings. Much of that is or can be built in to the newer stuff. There is still much to be gained with finishing the job, and various things such as camshafts.


However, for example, when the 427 NA engine came out, a friend had one, and straight out of the car, no work done, first pull on the dyno, it made nearly 100 more HP than an old L-72 based Stock Eliminator engine that was competitive. They were rated the same. Exactly the same. They were literally in the same class. Yes, they eventually moved them to their own classes. But first they tried to beat us to death with them for a while. It cost the class several well established good racers who had not intended to quit. But quit they did.

[Bpozzi]

Originally Posted by RKelliher

First of all , Jim's was available of the assembly line with a 375hp 396. Your car was not off the assembly line and the 572 never came off the assembly line.Are they going to allow the 632 engine also, which is 1004hp from crate.

HAHAHAHA Do you think there is a single item in that entire engine that resembles or is original to the 396/375 hp engine that came off the assembly line 😂😂.

[RKelliher]

Yes Brent they are oe parts in his motors. I know because I worked for Jim for 28 years. I know what is in those motors.