Happy Easter and welcome to Packard Motor Car Information! If you're new here, please register for a free account.  
Login
Username:

Password:

Remember me



Lost Password?

Register now!
FAQ's
Main Menu
Recent Forum Topics
Who is Online
159 user(s) are online (93 user(s) are browsing Forums)

Members: 2
Guests: 157

JW49, Tobs, more...
Helping out...
PackardInfo is a free resource for Packard Owners that is completely supported by user donations. If you can help out, that would be great!

Donate via PayPal
Video Content
Visit PackardInfo.com YouTube Playlist

Donate via PayPal



(1) 2 »

Edelbrock 4 Barrel on a straight 8
#1
Home away from home
Home away from home

Mike T
See User information
Been considering some possible options when I get the 288 rebuilt on my '51 Coupe. Does anyone have any feedback about putting a factory 4 barrel intake/exhaust manifold with a modern Edelbrock carb?

I was looking at the 500 CFM Performer Series. I'm going to do a 700R4 transmission swap (and if I do a new 4 barrel vs. the factory 2 barrel) the Edelbrock has an adapter ready to go to for the TV cable. Takes all of the fab and guess work out of the TV adjustment on an old Carter carb. Plus the power boost would be nice.

Thoughts ...

Posted on: 2016/12/6 23:16
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#2
Forum Ambassador
Forum Ambassador

HH56
See User information
I don't recall anyone doing the Edelbrock on a straight 8 but on V8s there have been several done with good results. I believe it needs an adapter to raise the base over the V8 manifold but on the inline manifold the throttle linkage may clear. The 500 is used on the 352 and would probably work on the 327 but I wonder if it would be too much for a 288.

Posted on: 2016/12/6 23:24
Howard
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#3
Home away from home
Home away from home

Tobs
See User information
Jim used one on his packard powered indy car.

Posted on: 2016/12/7 0:53
1953 Clipper Delux Club Sedan, 1969 912, 1990 Miata, 2009 Ford S-Max.
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#4
Forum Ambassador
Forum Ambassador

Ozstatman
See User information
Link to Jim's Packard powered "Indy" car.

Posted on: 2016/12/7 0:59
Mal
/o[]o\
====

Bowral, Southern Highlands of NSW, Australia
"Out of chaos comes order" - Nietzsche.

1938 Eight Touring Sedan - SOLD

1941 One-Twenty Club Coupe - SOLD

1948 Super Eight Limo, chassis RHD - SOLD

1950 Eight Touring Sedan - SOLD

What's this?
Put your Packard in the Packard Vehicle Registry!
Here's how!
Any questions - PM or email me at ozstatman@gmail.com
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#5
Home away from home
Home away from home

Mike T
See User information
I was looking through that thread. The consensus seem to be that 500 CFM would be good for a 327 (and 600 may be too much).

But my question remains; is 500 CFM to much carb for the 288?

Posted on: 2016/12/7 9:29
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#6
Home away from home
Home away from home

64avanti
See User information
The Edelbrock 1406 is the go-to carb for 60's V8s if you want great bolt-on drivability. It works great on my '55 352 but could be a little large for the flathead? If you have not ruled out a 2bbl, the Holley 2300 series, # 7448 specifically is a great bolt on & go carb for smaller or low revving engines @ 350 CFM.
The factory had the luxury of fresh engines, carbs & laboratory tuning to perfect drivability.
Unless you have access to a highly experienced carb expert,(who does?) many times "close" is as good as it gets. Because I drive my old car a lot, I have little patience for bogs, stumbles & the like.
Keep swinging for the fence!

Posted on: 2016/12/7 10:11
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#7
Home away from home
Home away from home

Fish'n Jim
See User information
There's a way to calculate the cfm that the motor will pull but it escapes me at the moment. I like the easy way, I'd just call Edelbrock Tech and discuss with them.

If Pack offered a 4 bbl for the 288, then match the cfm of the carb they used. There should be a carb number and you can run them down on the internet on the carb site's like MIke's. There's original Rochester and Carter info online too. I've downloaded it all.
Be advised, if you don't do anything with the cam and timing, you won't realize any gains in performance any way. Can't beat an old horse to run faster, put some carrots in front. The old grey mare 288 probably won't scream like an eagle, regardless of what you do, but you can crank it up to the 327, I'm told. Otherwise, the 4bbl will be mostly for show. Vintage speed parts is a search unto its own but they are hoarded.

Posted on: 2016/12/7 19:05
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#8
Home away from home
Home away from home

Ross
See User information
Just calculating the pumping, at 4000 rpm a 327 is only moving 378 cfm if the volumetric efficiency is an impossible 100%. A 288 can only process 333 cfm at the impossible 100% efficiency. Real life volumetric efficiency on a flathead is maybe 75% if we are lucky, so the 288 will only process 250 cfm.

I did have a 4bbl setup on a 288 some years ago and was not thrilled. It tended to bog and was not noticeably quicker at the top end. That engine had been ported and relieved so the efficiency was better than stock.

In the car that is now the basis for the After Eight project, I am running a 288 2bbl, ported and relieved and with cam advanced to 1954 327 specs. That works quite well with a smooth delivery of torque over a wide range.

Posted on: 2016/12/7 21:32
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#9
Home away from home
Home away from home

John
See User information
Ross, on advancing the cam to '54 327 specs. Was this through a cam re grind or adjustment of the timing?

John

Posted on: 2016/12/8 9:43
 Top  Print 
 


Re: Edelbrock 4 Barrel on a straight 8
#10
Home away from home
Home away from home

Ross
See User information
It is just a case of using a 54 camshaft gear as it has the keyway indexed slightly different to the teeth. I discovered this by accident whilst agonizing over the specification sheets of 53 and 54 after wondering why a good 54 always felt a bit snappier than a good 53.

Posted on: 2016/12/8 14:45
 Top  Print 
 




(1) 2 »




Search
Recent Photos
Photo of the Day
Recent Registry
Website Comments or Questions?? Click Here Copyright 2006-2024, PackardInfo.com All Rights Reserved