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Original Message
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| Bellhousing is different. |
| By Dave Shoe - 01/25/2004 6:10:20 PM; IP 216.243.176.34 |
Ford stopped advertising pickup truck HP in 1972. I assume this was an industry trend.
The 1971 390 pickup had 8.6:1 compression and was rated 255@4400 HP and 376@2600 Tq.
The 1972 390 was rated 8.2:1 compression with no HP or Tq spec.
The 1973 390 had no compression, HP, or Tq spec listed. All 1973s inherited EGR, which allowed boosting HP a little.
In 1973, the F100 got the usual 2V, and an all new 390-4V was installed in F250-up trucks (I forget which the F150 got)
All 360/390 pickups got the same cam. I suspect the 2V horsepower for 1973 was really close to the 1971 spec, the 4V maybe 10HP more.
Shoe.
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