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engine ID?

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Old Oct 21, 2007 | 02:30 AM
  #16  
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Yea, well, I went to take a look at it and it certainly looked like a 79. I checked the engine stamp because the guy couldn't grasp where I was telling him it was. The stamp is M28/02 which I am guessing means 244hp, auto. The number stamped underneath that is 9195420.

BUMMER!!!
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Old Oct 21, 2007 | 02:34 AM
  #17  
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244hp? Should be 229hp for the 4.5 Euro 1980-1983, 219hp for the US and Euro 77-79
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Old Oct 21, 2007 | 02:36 AM
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Yea, just looked it up and saw that...DANG!!! Certainly not buying this one!

Thanks for the help guys!!!
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Old Oct 21, 2007 | 02:39 AM
  #19  
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Then again, the 1979 is lighter than the Euro S. Add Euro heads, cams and intake and you have around 287HP. 13hp less but a couple hundred pounds less weight...
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Old Oct 21, 2007 | 02:56 AM
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So how many pounds lighter would equal a HP more?
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Old Oct 21, 2007 | 03:16 AM
  #21  
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m28/02 is 229 hp BUT---only 8.5 cr and considerably less torque than the 80-82 4.5L Euro's.

as for lbs. lost per hp gained, look at it this way:

for every 100 lbs. removed, you cut your quarter mile ET by one tenth of a second.
Cruz Pedregon (top fuel funny car owner/driver) covered this subject a few months ago in HOTROD.....I forgot what the hp gain was, but it's just theory. You never actually gain hp with weight removal, you just make it easier for the car to accelerate.

---rhj
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Old Oct 21, 2007 | 08:34 AM
  #22  
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Originally Posted by 928ntslow
Yea, well, I went to take a look at it and it certainly looked like a 79. I checked the engine stamp because the guy couldn't grasp where I was telling him it was. The stamp is M28/02 which I am guessing means 244hp, auto. The number stamped underneath that is 9195420
Right, M28/02 is ROW '78-79 automatic engine and 9195420 confirms it is '79 MY automatic. Automatic engines had sequence numbers starting from 5000 while manuals started from 0001.

ROW '78-82 4.5L engines are all rated 240 DIN hp which is 237 SAE net hp.

ROW 4.5L torque changed when compression ratio was raised from 8.5:1 to 10.0:1 in '80 MY. '78-79 has 350Nm while '80-82 has 380Nm, both at 3600 rpm.

US model had 345Nm in '78-79 and 360Nm in '80-82, both at 4000 rpm.
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