engine swap
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New User
Joined: Jul 1999
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engine swap
i need to know about an engine swap in my 1989 f150. it currently has a 302 with an automatic transmition. i wanna put a 351w into it but need to know if i can keep the 302 wiring harness or do i have to change it out to a 351 wiring harness
and please let me know of anything else that has to be changed over. any help will be geatfully appreciated
and please let me know of anything else that has to be changed over. any help will be geatfully appreciated
Senior User
Joined: Jun 1999
Posts: 366
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From: saramento usa
engine swap
I'm a little foggy on the wiring harness, but I wouldn't think it would need to change.
Changes from 302 to 351W:
-Adapter for accessory brackets: I believe you can purchase this from Ford. The 351W is about 1 1/2" taller than the 302 (and about 40 lbs heavier).
-Intake manifold (manifolds won't swap)
-Flexplate (if automatic): 302, I believe, uses a 50 oz counter balance, while the 351W uses 28 1/2 oz.
-Harmonic balancer (see above)
-Front cover on timing chain: I think this is different
-Oil pan may be different also
That's all I can think of for now.
Slik
Changes from 302 to 351W:
-Adapter for accessory brackets: I believe you can purchase this from Ford. The 351W is about 1 1/2" taller than the 302 (and about 40 lbs heavier).
-Intake manifold (manifolds won't swap)
-Flexplate (if automatic): 302, I believe, uses a 50 oz counter balance, while the 351W uses 28 1/2 oz.
-Harmonic balancer (see above)
-Front cover on timing chain: I think this is different
-Oil pan may be different also
That's all I can think of for now.
Slik
Freshman User
Joined: Apr 2000
Posts: 28
Likes: 0
engine swap
I am currently running a wiring harness cobbled from 302 truck and mustang ( dual exhaust needed dual O2 sensors. ) There are some sensor wires that will need to be lengthend, mostly egr, throttle position and distributer connections.
