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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Chevelle 540 going on dyno tomorrow. Take a guess for power

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G3GM :: G3 Tech :: Engine & Driveline

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Chevelle 540 going on dyno tomorrow. Take a guess for power Empty Chevelle 540 going on dyno tomorrow. Take a guess for power

Post by bracketchev1221 Mon Jan 06, 2014 8:48 pm

The motor out of the chevelle is going for a tune up tomorrow. I am looking for a gain of 25-30 hp over how it came out of the car. Feel free to take a guess at the power numbers. The car weighs 3170 lbs and has gone 9.0s at 148.
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Post by dynchel Tue Jan 07, 2014 3:11 pm

500 h/p?
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Post by pila Tue Jan 07, 2014 6:12 pm

A big block doesn't have a problem blowing past 500 HP I won't hazard a guess. Some older dynos only went to 999 HP, and a lot of big blocks are capable of running past that.

With that 9.0 time, it's making big power I would think. Very Happy 

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Post by bracketchev1221 Tue Jan 07, 2014 9:22 pm

We found 21 hp and it made,

910 hp at 7100 rpm
776 ft lbs torque at 5800 rpm.
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Post by dynchel Wed Jan 08, 2014 8:15 am

Nice.  Thumbs up 
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Post by bracketchev1221 Wed Jan 08, 2014 9:56 am

Thanks I was actually surprised at how much it made. I was teasing my stepson telling him the Malibu is probably about 150hp. I told him we should put the 540 in the Malibu. And then let it eat the trans and the rear end real quick Very Happy 
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Post by driveit Wed Jan 08, 2014 11:17 am

lol. That is mind blowing power. Dream engine for me would be a fuel injected 450 hp 383 stroker with about the same torque and as low compression as I can get. Possibly supercharged, but I done want a whole in my hood. Daily driver pump gas style. Maybe its just a dream.
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Post by bracketchev1221 Wed Jan 08, 2014 11:50 am

Well, that is one of the limiting factors with my Chevelle. I like the semi stock appearance of it, so I don't have a tall scoop on it. I cannot fit any super carb spacers on it, nor do I have a ram air effect from a scoop. A scoop alone is probably worth a tenth maybe more on my car at speed. But oh well. I like just trying to get this house to go fast. The Malibu will be my next engine project. That will probably be a 383 car for the torque.
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Post by pila Wed Jan 08, 2014 1:31 pm

Hey Ray !  Those are great numbers !  The engine did what I suspected it would ! Very Happy 


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Post by Limey SE Wed Jan 08, 2014 2:48 pm

Edit: see next post


Last edited by Limey on Thu Jan 09, 2014 3:15 pm; edited 1 time in total
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Post by Limey SE Thu Jan 09, 2014 3:14 pm

Here's a few better shot's.



Chevelle 540 going on dyno tomorrow. Take a guess for power 5f844676


Chevelle 540 going on dyno tomorrow. Take a guess for power Adfd3be6
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Post by ant7377 Thu Jan 09, 2014 7:31 pm

Jeez,maybe build one for your Malibu too. Nice job
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Post by bracketchev1221 Thu Jan 09, 2014 8:56 pm

My friend wants me to pull the hydraulic roller 355 out of the nova and put it in the malibu. It is a really good running motor and well built. But it is the numbers matching block to the nova. So it will be sold with the car when it goes.
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