Should the Colorado get the 4.2 275 hp I-6?


57JagXKSS
03-12-2005, 11:53 PM
The Trailblazer comes with this I-6 so why not the Colorado?

http://www.gm.com/automotive/gmpowertrain/engines/vortec/images/ll8.jpg

http://www.canadiandriver.com/articles/jk/images/vortec_4200_i6.jpg

57JagXKSS
03-12-2005, 11:57 PM
The Vortec 4200 I-6:

4.2 DOHC I-6 has 275 hp at 6,000 rpm and 275 lb-ft of torque at 3,600 rpm.

The Vortec 4200 I-6 has been one of Ward's ten best engines since 2002.

http://www.theautochannel.com/F/news/2004/12/15/304690.html

57JagXKSS
03-13-2005, 12:05 AM
from chevyhiperformance.com

"To increase casting accuracy and minimize engine weight, the aluminum block and cylinder head of the Vortec 4200 I6 are made using a “lost foam” process. This casting technology provides both improved control of the manufacturing process and allows direct-mounted accessories that reduce vibration and weight. With the exception of the power-steering pump bracket, all engine accessories bolt directly to the engine."

http://chevyhiperformance.com/techarticles/p159132_image_large.jpg

"
One of the most interesting aspects of the Vortec 4200 I6 is what’s called variable-valve exhaust timing. This feature adjusts the exhaust camshaft timing within a range of 25 degrees as engine operating conditions change. To do that, an onboard computer first collects several points of data including throttle position, engine load, and vehicle speed. From there, a control valve adds or removes oil from a cavity and piston chamber (see cutaway photo) at the front of the camshaft. Thus, advancing or retarding the exhaust camshaft not only enhances the torque curve, but also improves idle quality and reduces emissions. With the ability to change timing, a more aggressive camshaft profile can also be used."

http://chevyhiperformance.com/techarticles/p159131_image_large.jpg

IFIXCARZ4U
03-14-2005, 05:20 PM
Mostly due to the fact it won't fit there is barely room for the I-5 engine much less adding another 6" to the front of the engine

IFIXCARZ4U
03-14-2005, 05:20 PM
Mostly due to the fact it won't fit there is barely room for the I-5 engine much less adding another 6" to the front of the engine

57JagXKSS
03-14-2005, 07:22 PM
really?

does anyone have pics of the Colorado's engine bay?

Vettribution
03-15-2005, 07:49 AM
Yes, really... You could fit a v8 in there,or a v6.... but the i-6 will not fit.

57JagXKSS
03-16-2005, 10:50 PM
Won't GM redesign the engine bay so that a 4.2 I-6 will fit?

Vettribution
03-22-2005, 10:55 PM
Most likely wont happen.. or they would have done it in the first place. The engine bay just isnt that long.. but it is wide enough for more engine.. Which is why you could fit the V8

Jaguar D-Type
05-14-2005, 07:18 PM
I think GM should redesign it to fit the I-6.

http://fourwheeler.com/roadtests/p66328_image_large.jpg

Jaguar D-Type
09-28-2005, 08:48 PM
The Vortec 4200 six–cylinder engine now generates 291 hp in the 2006 Trailblazer at 6000 rpm and 277 lb.–ft. of torque at 3600 rpm. 90 percent of the torque is available from 1600 rpm to 5600 rpm.

Jaguar D-Type
10-07-2005, 03:19 AM
http://chevyhiperformance.com/techarticles/p159130_image_large.jpg

http://www.gminsidenews.com/4.2VORTEC.jpg

Jaguar D-Type
12-17-2005, 03:20 PM
Anyone else?

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