Is there any difference between...
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New User
Joined: Jul 2002
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From: Erath
Is there any difference between...
a 300ci efi block(1990) and a 300ci carb block (1980)? What about the heads? I have a 1990 truck and the engine is bad, I have a line on a 1980 truck with the same engine with 88k miles(original) that runs well, can I swap the blocks, (and) heads?
Thanks,
Jason
Thanks,
Jason
Posting Guru
Joined: Jan 2001
Posts: 2,358
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From: Nebraska
Is there any difference between...
The 1980 block will have the hole from the mechanical fuel pump which you won't need with EFI, but I think you can cover this somehow. The 80's carbed 300's didn't have holes in the head for air injection, EFI'd ones did.
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[font color="green"]1995 F-150 Supercab XLT 4x4 302 M5OD 8' bed [/font]31x10.50's
[font color="green"]1986 F-150 4x4 300 I6 NP435 [/font]Warn hubs, DeeZee bed caps, '96 XLT bench seat, new paint job
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[font color="green"]1995 F-150 Supercab XLT 4x4 302 M5OD 8' bed [/font]31x10.50's
[font color="green"]1986 F-150 4x4 300 I6 NP435 [/font]Warn hubs, DeeZee bed caps, '96 XLT bench seat, new paint job
Thread Starter
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New User
Joined: Jul 2002
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From: Erath
Is there any difference between...
So, from what you're saying, I could use the block from the 80 and the head from the 90 should bolt on? This way I could have the holes for air injection in the head and just get a cover plate for the fuel pump hole? 
COOL 
I hope it is right.
Thanks,
Jason
COOL I hope it is right.
Thanks,
Jason
Posting Guru
Joined: Jan 2001
Posts: 2,358
Likes: 3
From: Nebraska
Is there any difference between...
That should work.
--------------
[font color="green"]1995 F-150 Supercab XLT 4x4 302 M5OD 8' bed [/font]31x10.50's
[font color="green"]1986 F-150 4x4 300 I6 NP435 [/font]Warn hubs, DeeZee bed caps, '96 XLT bench seat, new paint job
--------------
[font color="green"]1995 F-150 Supercab XLT 4x4 302 M5OD 8' bed [/font]31x10.50's
[font color="green"]1986 F-150 4x4 300 I6 NP435 [/font]Warn hubs, DeeZee bed caps, '96 XLT bench seat, new paint job
Thread Starter
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New User
Joined: Jul 2002
Posts: 9
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From: Erath
Is there any difference between...
>The knock sensor will not fit in the early block. I
>rethreaded the sensor and used an adapter fitting.
Could you maybe explain a little more, please? How did
you rethread the sensor and what type of adapter did
you use?
>The fuel
>pump blockoff for a chevy will fit.
Thank you ecarter50 and brown 4x4
Now, in a couple of weeks, the fun begins!!
Thanks again,
Jason
>rethreaded the sensor and used an adapter fitting.
Could you maybe explain a little more, please? How did
you rethread the sensor and what type of adapter did
you use?
>The fuel
>pump blockoff for a chevy will fit.
Thank you ecarter50 and brown 4x4
Now, in a couple of weeks, the fun begins!!
Thanks again,
Jason
Trending Topics
Posting Guru
Joined: Jun 2000
Posts: 1,229
Likes: 3
Is there any difference between...
The block has a pipe plug in the correct location. I rethreaded the sensor to 1/8 27 NPT and used a mechanical oil pressure fitting to adapt the size.
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