Specs for the 2013 COPO - Page 2

KRatcliff · 05-22-2013, 02:36 PM

Quote:

Originally Posted by Chad Rhodes

14.58:1 compression and a 640 lift cam in the 425/427, WOW!!

Same specs as the 2012.

countrypuppy4865 · 05-22-2013, 02:42 PM

The bore and stroke on the 350ci caught my attention! (4.125 bore 3.27 stroke). Sounds like a SS modified motor!

Andrew Hill · 05-22-2013, 04:39 PM

Quote:

Originally Posted by countrypuppy4865

The bore and stroke on the 350ci caught my attention! (4.125 bore 3.27 stroke). Sounds like a SS modified motor!

That's what I'm thinking, should be good for 9k+ rpm easily as a stocker!

Bill Grubbs · 05-22-2013, 05:14 PM

9k is a little low.

hadtobethere · 05-23-2013, 12:13 AM

Quote:

Originally Posted by countrypuppy4865

I'm thinking the 396/375 will be the best combo, but of course any of them should be way fast!

I had thought that also...but the specs were not what I had thought and it gets 15 HP before hitting the track.

junior barns · 05-23-2013, 03:06 PM

Quote:

Originally Posted by Stephen Bell

The problem is the factory computer is difficult to tune the supercharged cars. Most of the R&D is with the fuel injection and the Holley system should be a much better package. Roger Allen and his team have been very helpful in supporting the cars. S.Bell

NOT totally true!

05-22-2013, 02:42 PM	#12
countrypuppy4865 Senior Member Join Date: Nov 2003 Location: Donaldsonville, LA Posts: 980 Likes: 17 Liked 228 Times in 70 Posts	Re: Specs for the 2013 COPO The bore and stroke on the 350ci caught my attention! (4.125 bore 3.27 stroke). Sounds like a SS modified motor! __________________ Jimmy "Cooter" Hidalgo, Jr. 4865 E/SA '04 GTO 4865 SS/GA '99 Firebird

05-22-2013, 05:14 PM	#14
Bill Grubbs Member Join Date: Oct 2002 Location: Magnolia, Texas Posts: 416 Likes: 3 Liked 564 Times in 66 Posts	Re: Specs for the 2013 COPO 9k is a little low.