What is the absolute lowest rise intake for a 351?

[ntsqd]

Used to be that intake manifold mfg's would have a side view with dimensions that you could in theory use to figure out hood clearance. Do they not do that any more?
I realize that's only good for those manifolds still in production, but short of luck or a local car parts swap-meet that's likely going to be the options anyway.

 

[cs_88]

I ran a 351W with an Edelbrock performer intake with stock hood and no BL for a while.
It fit but it was tighter than a cuns nunt.
I found a 4bbl D5JE-9425-FA manifold locally (marine intake I believe). It has a Volvo Penta ID tag on it.
No noticeable difference in performance and lots more room.

 

[EPB72]

I ran a 351W with an Edelbrock performer intake with stock hood and no BL for a while.
It fit but it was tighter than a cuns nunt.
I found a 4bbl D5JE-9425-FA manifold locally (marine intake I believe). It has a Volvo Penta ID plate on it.
No noticeable difference in performance and lots more room.

if you cut and paste that part # there is one on ebay for sale in Maryland ,

https://www.ebay.com/itm/2060687321...d=link&campid=5335857059&toolid=20001&mkevt=1

 

[EPB72]

So dug out manifolds in storage for pics and some measurements

69 intake C90E-9425-E next to performer 351w 2181 manifold ,, the performer will be 3/8 inch taller I will also note that the carburetor is also mounted 1 1/4 inches farther forward on the Edelbrock manifold ... If you place a carter AFB directly on the factory manifold without the spacer the throttle will hit on the drivers side you maybe able to cut / modify play with gasket thickness to make work without,,

 

[turbotim2]

I always read that these Offenhausers were the lowest height for aluminum after market.

https://ebay.io/m/ts5e29

 

[EPB72]

I always read that these Offenhausers were the lowest height.

https://ebay.io/m/ts5e29

the dual port was a flop.. they also have one the same but not its the 360 its technically a single plane with a divider that is partially cut away in the secondary throttle plate positions, looks very simular to the one you posted,,,
I run the offy 360 351w manifold that I modified to to run a QJet, this manifold is 1/8 inch taller then the 69 OE and spacer set up,,

also note the offy's have the 16 bolt and L shaped water jackets, they were really sold to replace the 69 mustang/cougar 4bbl applications ,,

 

[cs_88]

A comparison between the Edelbrock and the marine intake.

 

[Oldtimer]

Also notice carb mount is farther back on ford C90E intake. This adds to clearance (not much, but it adds up) under hood as hood rises toward back and engine slopes down.

 

[Broncobowsher]

Back in the 50's Ford advertised they had the lowest profile marine engines on the market. Boat makers want a low profile engine to fit under smaller engine covers to give more room in the boats. Why I have a couple marine intakes that run side draft carbs. Even the late EFI engines got the lower profile GT40 intake instead of the already built for it truck intakes. 50s and 60s they were cast aluminum intakes across the board. Trying to keep the weight low. Guessing it was the 70s where they didn't care about weight and were after the durability of cast iron Guessing dissimilar metals with a salt water cooling system was the issue. I remember hearing something about stainless inserts in the exhaust manifolds after a certain serial number

 

[mdainsd]

Ugg. I cant see taking a nicely built engine and restricting it with a low performance manifold and a carb. Im going to pull the top off of my tall ram , turn it around and see how much hood buldge I need. I just for fun tried installing the intake I got with the engine. With the top plenum off there is just over an inch clearance at the front with the stock hood. I could fabricate a net top with a flat oval inlet in the side transitioning to the 104mm throttle body once it gets over the rocker covers.

 

[Glass Pony]

That is an aftermarket intake made by Holman and Moody way back in the day. That intake is every bit of 50 years old now.
The names on the runner changed depending on who was placing the order. Could be Shelby (when he would actually pay his bills), Ford or Cobra. The name plate was interchangable on the forms. Learning about this stuff was very entertaining as I got a chance to hang out with Lee Holman for a day many years ago and listened to a bunch of great stories.

That was considered a high rise intake back when they were new. Much taller than the factory intake. There is a '69 Hotrod magazine article from when the 351 was new showing off some aftermarket performance items, including an intake (I think this one) and they say how much taller it is. If anyone still has there motortrend app you can look up archivel magazines. I let my subscription laps after Discovery bought and killed all the new content.

Great info, I knew it was aftermarket, but I didn't know who made it or what rise it was. It was in the Bronco when I bought it from a co-worker back in the mid 1990's.
Still runs good even with the Malloy dual point distributor.
Back to the thread, back 35 years ago when I bought it this motor-intake set up cleared a stock hood with a 3" body lift. Not that I would recommend a 3" body lift.

 

[ntsqd]

Is this one of the nearly mythical 351W EFI intakes?

https://www.facebook.com/marketplace/item/1527229929131993/