2012 Camaro in the NHRA Classguide

[68camaroSS]

Just to give some insight on the real numbers of this 427 NA engine, I have been running close to the same combination in my 68 camaro in bracket mode for the past year. 427 LS7 NA, originally Z06 motor, replaced pistons with 12:5 compression Ross, have close to the same cam as the COPO, powerglide, but with a 950 carb setup, stock GM 4-barrel intake. Car runs 6.0's in the 1/8 shifting at 6800. Dynoed with a fresh motor this year at over 700 hp @6800. Figure how much more the COPO would be capable of from reported rumored 9.69 after the engine/chassis experts get more run time, go to full race tune, running it up to 7500 rpm.

[Stewart Way]

Byron
Not sure the 275 vs 425 is that far off. Adjust for cid and the 275 goes to 325. WJ says a point of CR is 4% so thats another 12 % or 365 HP. Then the light valves, the 33% larger throttle body opening and the .640 vs .490 cam and its pretty close. What is .150 lift worth? Maybe its even in favor of the 427. Not sure the TB difference gets much since I doubt its the choke point on either engine, but it sure doesn't hurt. Either way it will make a slick stocker.

[Jeff Teuton]

Byron knows the old 360 is a truck motor, and of course the Chev is a race motor. Thats about the same. i can tell the chevy guys are happier already. Don't you think so Stewart? I'm glad they are feeling better.

[Andys dad]

Originally Posted by Jeff Teuton

Byron knows the old 360 is a truck motor, and of course the Chev is a race motor. Thats about the same. i can tell the chevy guys are happier already. Don't you think so Stewart? I'm glad they are feeling better.

Ya think