4x4.forensick.net: surely theres a better way to waste your time than reading about me wasting mine!

somebody had to do it.

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More Mass-Air differences

4/1/2017

 
The list of things that change continues

The TPS sensor, while being physically identical, had a different plug for the SD trucks vs the Mass Air ones, so that must be changed.
SD on left, Mass Air on right
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If you look closely, youll notice the 97 SD throttle body has two extra vacuum ports, where the CANP tied in. However the 96 Mass Air doesn't use a CANP, it uses a VMV, so those ports don't exist. Im still using the 351's TB, mainly because its in way better shape, so ive simply capped off those ports
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The 96 trucks use a DPFE instead of an EVR for the EGR. On the 302s, the sensor is mounted on a bracket on the left side of the motor, right on the plenum.
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The 351 has the DPFE hanging off a bracket directly next to the EGR, on the other side of the TB. So, only 2 threaded bosses:
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While at first glance the 302 & 351 EGRs look the same, youll notice the threads on the bottom are quite bigger on the 351's EGR.
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Homefab DPFE bracket, which puts the DPFE roughly where it would be from the factory. Ford had it maybe ½" lower than this, but close enough for me. On the 302 with the DPFE on the other side, the pigtail for it is loomed up with the IAC. So I simply split those two up and re-loomed them separately. This is the only change ive made to the harness, to go from a 302 to a 351.
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Saginaw swap!
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Junkyard trans cooler out of an F250, biggest ive ever seen from the factory
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Started laying out all the vacuum lines. Since this motor doesn't use a smog pump or TAD/TAB, this went fairly smoothly. I did find lots of dry rotted plastic lines, so the whole system has been replaced with new rubber hose
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She's almost a runner!
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​I got the rear shaft back from the driveline shop. Shortened 1", and fully rebuilt with Spicer parts.
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Things left to do:
  • change fuel filter
  • New fan shroud. The 302's shroud doesn't fit the new (bigger) radiator.
  • new coolant return hose from TB to radiator
  • install upper rad hose & fill system
  • install intake tubes
  • whip up temporary downpipes for headers for now, until it gets an exhaust system
  • put battery in and turn key? I think im that close.
First non-rainy day we get, ill be at the junkyard trying to find a fan shroud. Once ive acquired that piece, I should be able to finish this thing up and see if she runs!


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