rochester carb swap

[diesel1960]

Need to replace my rochester quadrajet 4mv marine carburetor on gm 350 inboard .
Need advice which Edelbrock carburetor will be easy to bolt on and go on 350 standard intake manifold.

 

[84EdH]

Re: rochester carb swap

I changed my Rochester quad to an Edelbrock 1409. Great carb, fits mercruiser controls, electric choke. Lots of boaters love this carb.

 

[diesel1960]

Re: rochester carb swap

Enough air flow for 290 hp small block or need 1410 ?

 

[84EdH]

Re: rochester carb swap

1409 should be plenty.

check this thread: http://forums.iboats.com/non-repair...ck-1409-vs-1410-frankenmerc-383-a-630066.html

 

[Bondo]

Re: rochester carb swap

Enough air flow for 290 hp small block or need 1410 ?

Ayuh,.... The 1409 will feed a SBC,...

The 1410 is for BBCs,...

 

[diesel1960]

Re: rochester carb swap

Edelbrock 1409 it is then, thank you for help.

 

[Fishermark]

Re: rochester carb swap

Just be aware that you are going from a spread bore to a square bore. You may or may not need an adapter. Depends upon how much "meat" you have to seal around the base of the carb gasket.

 

[Bondo]

Re: rochester carb swap

Just be aware that you are going from a spread bore to a square bore. You may or may not need an adapter. Depends upon how much "meat" you have to seal around the base of the carb gasket.

Ayuh,.... The Edlebrock is a dual pattern, but I don't know, I've never tried to bolt 1 onto a spread-bore manifold,...

 

[diesel1960]

Re: rochester carb swap

Just be aware that you are going from a spread bore to a square bore. You may or may not need an adapter. Depends upon how much "meat" you have to seal around the base of the carb gasket.

Do you know what adapter I have to use to use on the standard GM 350 ?

 

[Fishermark]

Re: rochester carb swap

As I said - you may not need the adapter. The car in my avatar is my 56 Chevy. I have an aluminum Performer intake - which is a spreadbore, and used to have a QJet. I bought an Edelbrock Thunder series carb, (essentially the same as the one you are looking at - only for automobile use), and I did not need an adapter. Every manifold is different. You will probably be fine.... but the only way to make sure is to see if everything is covered and seals.

 

[diesel1960]

Re: rochester carb swap

OK,thanks for replys.