Edelbrock 1403

[OldMercs]

I think I've narrowed my carb choice to an Edelbrock 1403 Performer 500 cfm w/electric choke but as always I'm interested in thoughts/advice from those who know more than me.

This is going on my '54 Mercury 292. It's a cruiser, not performance necessarily but I want to be able to keep up.

Also, will I need a spacer and if so how much?

[miker98038]

If I’m right, this is going on a B manifold, so it’s got the modern square bore bolt pattern. So a spacer wouldn’t be needed for the installation, but would be for heat isolation.

I like the Eddy Carter clones, and have used 1406’s and 1405’s. Both manual and electric chokes. Easy to tune, just takes a bit of time to get your head around the tuning section of the manual. Easier jet changes than a Holley IMO.

But there’s been a lot of talk that the Summit series, based on the Autolite 4100 design runs really nice on the street. It uses annular venturies for better low speed atomization.

You can find some comments on that over at yblocksforever, and also on the Mustang sites for guys replacing autolites that were oem.

Just a thought. One thing Ted Eaton’s found on his dyno testing is the vacuum or flow operated do a good job of not over carbing an engine. But a 500 or so will be fine until you get into more work on the airflow side.

Just one as an example.

https://www.summitracing.com/parts/s...00vs?rrec=true

[paul2748]

I assume that you have a 57 or later distributor? If not, you will need it with either the Edelbrock or the Summit.

[OldMercs]

Originally Posted by paul2748

I assume that you have a 57 or later distributor? If not, you will need it with either the Edelbrock or the Summit.

I'm looking for one now.

[KULTULZ]

Do you know what year 292 is in the MERC?

Is it a 2V or 4V?

[OldMercs]

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Originally Posted by KULTULZ

Do you know what year 292 is in the MERC?

Is it a 2V or 4V?

I believe it's a 61. The block id is C1AE. I got it as a 2V. I found a B intake cheap so I'm upgrading to a 4V. Fun project with my grandson.

[KULTULZ]

Originally Posted by OldMercs

I believe it's a 61. The block id is C1AE. I got it as a 2V. I found a B intake cheap so I'm upgrading to a 4V. Fun project with my grandson.

I think I asked all of this in an earlier thread and CRS is not kind.

You SHOULD have the DUAL DIAPHRAGM DIST.

You will have the F100 2V CARB on it. Are you having carb performance problems are do you just want more go?

Do you know if the later F/M trans came with the swap?

[scicala]

Originally Posted by OldMercs

I believe it's a 61. The block id is C1AE. I got it as a 2V. I found a B intake cheap so I'm upgrading to a 4V. Fun project with my grandson.

If it's a '61 292 you should be fine with the distributor it came with provided it has centrifugal advance and vacuum advance.

Sal

[Gene F]

"You SHOULD have the DUAL DIAPHRAGM DIST."

Just change the vac chamber on the dist? Why? How does the dual work (short sequence of operation)?

[OldMercs]

Originally Posted by scicala

If it's a '61 292 you should be fine with the distributor it came with provided it has centrifugal advance and vacuum advance.

Sal

Here's a few pictures of my distributor and any identification I found on it. I need help determining what year it is and if it will work with a Edelbrock 1403. Thanks

[KULTULZ]

Bad news. The DIST is LOAD-O-MATIC.

Can you show a photo of the CARB and any intake manifold ID NOS you see?

Something ain't right here.

[KULTULZ]

Originally Posted by Gene F

"You SHOULD have the DUAL DIAPHRAGM DIST."

Just change the vac chamber on the dist? Why? How does the dual work (short sequence of operation)?

The LOAD-O-MATIC DIST has only a modified vacuum signal advance.

The DUAL ADVANCE DIST has both ported vacuum signal MANIFOLD VACUUM ADVANCE along with a mechanical advance set-up using advancing centrifugal weights.

CLICK HERE - http://m571.com/yblock/loadomatic.htm

[Gene F]

I have a 57. So I think I have my answer. Thanks

[paul2748]

The dual diaphram only came on 56 cars as far as I know. Unless it came sometime later (60's).

Originally Posted by Gene F

"You SHOULD have the DUAL DIAPHRAGM DIST."

Just change the vac chamber on the dist? Why? How does the dual work (short sequence of operation)?

[OldMercs]

Originally Posted by KULTULZ

Bad news. The DIST is LOAD-O-MATIC.

Can you show a photo of the CARB and any intake manifold ID NOS you see?

Something ain't right here.

Here's the carb & manifold that was on the car with the Load-O-Matic. I'm replacing them with a "B" manifold & Edelbrock carb.

[OldMercs]

Great read. I enjoy knowing more about these technologies. Thanks

[OldMercs]

Originally Posted by KULTULZ

The LOAD-O-MATIC DIST has only a modified vacuum signal advance.

The DUAL ADVANCE DIST has both ported vacuum signal MANIFOLD VACUUM ADVANCE along with a mechanical advance set-up using advancing centrifugal weights.

CLICK HERE - http://m571.com/yblock/loadomatic.htm

Great read. I enjoy knowing more about these technologies. Thanks

[Hot Rod Reverend]

late to the party but check out this video, it will help explain the situation with the distributors in the 50's...

https://youtu.be/od5V6cWjEAM?feature=shared

[KULTULZ]

... hmmph ...

I bet this engine will not even get out of it's way.

The intake is correct for a 1960-1962 car engine. It has a 1974 F-2150 2V CARB on it.

If it was an update engine swap (not wanting to rebuild the 256), why would they use a 1956 LOM DIST?

Is the a vacuum signal line running from the carb to the DIST ADVANCE CANISTER?

Did they paint the engine green (original MERC 256CI color)?

[KULTULZ]

Originally Posted by Hot Rod Reverend

late to the party but check out this video, it will help explain the situation with the distributors in the 50's...

https://youtu.be/od5V6cWjEAM?feature=shared

Very well presented Reverend.