Is there any difference between...

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Jul 23, 2002 | 01:44 PM

JCDXJ

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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

Jul 23, 2002 | 02:42 PM

FordPerf300

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From: CT

Is there any difference between...

I don't see why they wouldn't be the same, but then again... things change.

Jul 23, 2002 | 03:14 PM

brown 4x4

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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

Jul 23, 2002 | 04:07 PM

JCDXJ

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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

Jul 23, 2002 | 05:54 PM

brown 4x4

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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

Jul 23, 2002 | 10:16 PM

ecarter50

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Is there any difference between...

The knock sensor will not fit in the early block. I rethreaded the sensor and used an adapter fitting. The fuel pump blockoff for a chevy will fit.

Jul 24, 2002 | 07:55 AM

JCDXJ

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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