Guess My HP

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360moparjunkie said:
483
not sure how much $ you spent.
My limited experience says $ spent reflect your hp #s
Best of luck w your new motor.
Darrell
Click to expand...

I stopped counting the dollars a long time ago. It just depressed me. The worst way to spend money is when you have to pay one shop to fix another shop's screw up. It sucks when you do your research, go to a highly respected and expensive Mopar specialist in metro Detroit that has been doing this since the 60's, and they mess up the basic machine work. The decks were milled on a slight angle from the rear to front so that the rear was a zero deck and the front was out of the hole by .015", the cylinders weren't round, and the intake was ported so badly that there was no way to align all of the ports to the heads. Don't get me started on the clearances! They were all bad.

I wondered why the thing just never seems to run right or make the power the parts would lead you to think that it should. I finally pulled it out and took it to another shop. When this guy got it apart, he just laughed. He said he saw better work done in a high school auto shop class. Thank god that I had another place do the heads for me!

Anyway, I'm into this thing for MANY thousands of dollars. If this doesn't work, I'll probably just sell everything, clean out my garage and go buy a Camery.
 
Valiant1 said:
I stopped counting the dollars a long time ago. It just depressed me. The worst way to spend money is when you have to pay one shop to fix another shop's screw up. It sucks when you do your research, go to a highly respected and expensive Mopar specialist in metro Detroit that has been doing this since the 60's, and they mess up the basic machine work. The decks were milled on a slight angle from the rear to front so that the rear was a zero deck and the front was out of the hole by .015", the cylinders weren't round, and the intake was ported so badly that there was no way to align all of the ports to the heads. Don't get me started on the clearances! They were all bad.

I wondered why the thing just never seems to run right or make the power the parts would lead you to think that it should. I finally pulled it out and took it to another shop. When this guy got it apart, he just laughed. He said he saw better work done in a high school auto shop class. Thank god that I had another place do the heads for me!

Anyway, I'm into this thing for MANY thousands of dollars. If this doesn't work, I'll probably just sell everything, clean out my garage and go buy a Camery.
Click to expand...

OH! I forgot how screwed up the rods were, too!
 
Should have dealt with MRL Performance from the start. A little bit of a drive to Chesaning, but my "pretty plain" 340 made 470.9hp and 455 lb-ft. Had it in the car for a year already. I'm very happy.
 
There was some delay in getting the pulls scheduled, but it finally happened yesterday. I wasn't able to be there, unfortunately, but I do have a copy of the dyno sheet. The video will come shortly. The numbers are a little lower than I expected, but the truth will come from the time slips. Anyway, see the photo of the sheet below (I'll try to post something better), but peak HP was 465@6400 and peak tq was 399@5400.

Now all I have to do is pay for it, put it back in the Duster, and tear up some tires! I'm geeked! Not about paying for it, but the other stuff.
 

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