How many CFM? '76 360 2bbl

[George Jets]

Wondering if anyone knows how many CFM this 1976 360 2bbl is capable of?

Came out of a '76 D100 360/727, 3.23 gears.

Has been stated that they come in 350 cfm and 500 cfm, this carb.

These butterflies and the bolt pattern are definitely larger than the earlier 318 BBD 2bbls that came stock on the 318s in '69.

 

[Oldmanmopar]

The factory carburetors were 350's. The Holley 500's look like this. We ran several different carbs. You will need to make an adapter as we did. Last picture the one in the back of the picture is for a 500, The one in the middle is for a factory carb. The one in the front was a 4150 base 4bbl

 

[George Jets]

Thanks

There is actually A 650 Holley 2 Barrel out too that I would like another look at.

Want to see how the 500 compare with them, imagine there is a bigger supply of the 500s?

 

[Oldmanmopar]

All the old 4 cylinder pinto race cars used the 500's. The class is gone now, They come up cheap on the web. We paid $75 for the one pictured. We ended up with a 750 carter on that car. Worked the best.

 

[QUINN FORBES]

350cfm.
Came stock on my ‘78 360 Ramcharger.
Awesome carb, keep an eye on the throttle body gradually loosening from the fuel body. ( you will see the wet gasket between the two and the fuel bowl will wiggle a bit)
I put that carb and intake on a 318 after port matching to 318 heads and that alone woke up the teener.

 

[teringer]

The Holley 2barrel on 360 has a 1 5\8 throttle plates with a 1. 3\8. Venturi bore comes in a 435cfm. The same carb is used on 400 b. Engines

 

[QUINN FORBES]

Sorry; port matching 318 heads to the 360 2 b intake.

 

[67Dart273]

Bear in mind that a 500 2bbl, is not a 500 4bbl. The 2bbl carbs are rated at different vacuum drop than 4bbl. Seems to me a Holley 500 is about the same as a "would be" 350 4bbl.

I've forgotten, I think it's 3" Hg for 2bbl ("more suck") vs 1 1/2" Hg for 4bbl

Holleys are not rated same as Carter, either.

......And then there's "rated wet vs rated dry"

 

[Garrett Ellison]

Posted by @69 Cuda 440 in 2014

2-Barrels

273 ~ {1964 thru 1969}
Carter BBD {1.437" Throttle Plates x 1.063" Venturi}.......... 275 CFM Rating

318 ~ {1968 and up}
Carter BBD {1.437" Throttle Plates x 1.186 Venturi}............ 285 CFM Rating

360 ~ {1971}
Holley {1.563" Throttle Plates x 1.343 Venturi}................... 350 CFM Rating

383 ~ {1962 thru 1971}
Carter BBD {1.563" Throttle Plates x 1.313" Venturi}.......... 365 CFM Rating

400 ~ {1972}
Carter BBD {1.563" Throttle Plates x 1.313" Venturi}......... 365 CFM Rating

 

[MOPAROFFICIAL]

The Holley 2barrel on 360 has a 1 5\8 throttle plates with a 1. 3\8. Venturi bore comes in a 435cfm. The same carb is used on 400 b. Engines

I always knew them being near 400 cfm, too much for the slant I had at the time.
Garrets list above my post is close to what I was told.

 

[YY1]

400 carb has smaller venturi but higher CFM than 360 carb?

 

[Garrett Ellison]

Maybe flow testing difference between Holley and Carter carburetors? I’ve always heard that Holley carbs actually flow more in the real world compared to an equally sized Carter carb. Maybe someone has some flow bench information to contribute?

 

[RustyRatRod]

Posted by @69 Cuda 440 in 2014

2-Barrels

273 ~ {1964 thru 1969}
Carter BBD {1.437" Throttle Plates x 1.063" Venturi}.......... 275 CFM Rating

318 ~ {1968 and up}
Carter BBD {1.437" Throttle Plates x 1.186 Venturi}............ 285 CFM Rating

360 ~ {1971}
Holley {1.563" Throttle Plates x 1.343 Venturi}................... 350 CFM Rating

383 ~ {1962 thru 1971}
Carter BBD {1.563" Throttle Plates x 1.313" Venturi}.......... 365 CFM Rating

400 ~ {1972}
Carter BBD {1.563" Throttle Plates x 1.313" Venturi}......... 365 CFM Rating

And straight from the horse's mouth. Man what a great amount of Mopar knowledge Paul had. May he rest in peace.