Specs for the 2013 COPO

H Hoover · 05-22-2013, 01:14 PM

I thought the word was last fall that the head gaskets kept letting loose after a few runs. I think you would have to expect some problems on the first year run of a car like this.

BLAZER · 05-22-2013, 01:56 PM

Up and posted@NHRA

Rat Raceway · 05-22-2013, 02:00 PM

Quote:

Originally Posted by H Hoover

I thought the word was last fall that the head gaskets kept letting loose after a few runs. I think you would have to expect some problems on the first year run of a car like this.

That was with 4 bolt heads. Not sure why they even put them on...
Now with NHRA approved 6 bolt heads= NO PROBLEMS!

Chad Rhodes · 05-22-2013, 02:07 PM

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

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.

05-22-2013, 01:14 PM	#1
H Hoover Junior Member Join Date: Mar 2012 Location: Pennsylvania Posts: 82 Likes: 0 Liked 0 Times in 0 Posts	Re: Specs for the 2013 COPO I thought the word was last fall that the head gaskets kept letting loose after a few runs. I think you would have to expect some problems on the first year run of a car like this.

05-22-2013, 01:56 PM	#2
BLAZER Member Join Date: Nov 2007 Location: Wasthere,England Posts: 266 Likes: 1 Liked 7 Times in 5 Posts	Re: Specs for the 2013 COPO Up and posted@NHRA

05-22-2013, 02:07 PM	#4
Chad Rhodes VIP Member Join Date: Jan 2005 Location: Where the Green Grass Grows, AL Posts: 2,375 Likes: 0 Liked 3 Times in 3 Posts	Re: Specs for the 2013 COPO 14.58:1 compression and a 640 lift cam in the 425/427, WOW!! __________________ Chad Rhodes 2113 I/SA

05-22-2013, 02:42 PM	#6
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	#8
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.

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