FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: Stangman on August 04, 2021, 10:44:20 AM
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So dad had back surgery and I have been given the task of helping him get it going. So it’s a 33 roadster now was wondering what the engine angles should be so I have a starting point. I seem to remember a post about this around six months ago but can’t find it. Do you start with the motor at a certain degree and go back towards the rear.
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A basic way to start, is to level the engine with a level on the carb pad. Many FE's are set in the car at ~5° to give a basic alignment with the rear end. Then set it in the car at what ever oil pan clearance, to the ground, that you want.
From there you have to see how things will align and fit and modify your engine position, from there. The carb pad needs to be with in +/- 2° for the floats to work right.
There is a thread on drive line alignment that needs to be read also but, in part, the the trans and rear end yokes, need to be within 2° of each other.
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In a roadster you shouldn't need to angle it to much unless there is a clearance issue. Be aware of the angle built into the carb flange on which ever intake you plan on using.
Last one I did carb flange was at 2.5* but the engine was set at 2* so carb flange was .5* forward. Hardly noticeable, now I was purposefully trying to go as level as I could but only for my personal tastes. I then set the rear end to match as the spring perches had to be re-positioned anyway.
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As stated, many carbs are angled. I had to setup my F100 with 2* engine angle to level the carb. Everything I read indicated 2-4* is common so I just wanted to stay in that range
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It's so smoky out today, because of all the fires in Southern Oregon, that I can't work in my shop so, I thought I'd do something that I've been meaning to do, that goes with this thread.
Jay's intake book lists the intake height at both the front and rear of the manifolds, based on the carb pad being level so, for the most popular manifolds, I did the math for the pad angles, based on those dimensions and that the FE block is 21.64 long @ the china walls. All Ford manifolds run 4.97 - 5.30°. Edelbrock made most of theirs +/- 3°, with the exception of the Street Master @ 4.97.
Ed 427 - 2.98
Ed 390 - 3.31
Ed RPM - 2.98
Ed St Master - 4.97
Ed Victor - 0
Ed Air Gap - 3.31
Ed F262 8v - 3.31
Ed F380 6v - 3.31
Ford 390 hp - 5.30
Ford C4 - 4.97
Ford CJ - 4.97
Ford MR 4v - 5.30
Ford PI - 5.30
Ford Sidewinder - 5.30
Ford LR 8v - 4.97
Ford MR 8v - 4.97
Ford 6v - 5.30
Ford TW - 5.30
Holley St Dom - 5.30
PSE TR - 3.64
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FWIW - my 351C in the Falcon is set at 3 degrees. I set it with a torquer intake. Works for the non-angle intakes that I run, including the tunnel ram. Not too much, not too little.
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Thanks guys I should be able to get a good starting point now. I will be doing it next Wednesday. Thanks again
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Ford C4 - 4.97
Lets pretend for a moment a guy has a '64 Galaxie with a factory 5* engine angle as this 5* pad angle suggests. If you put any of the Edelbrock intakes on with 3* intake pad, you'd still be 2* down to the rear at the carb pad. Would just float adjustment be needed potentially, or is that slight of an angle a non-issue really?
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Setting levels on a Holley (or Holleys) with the engine running is SOP anyway. Switching between an Air Gap on a 302 with a Ed 600 vs a Weiand tunnel ram with dual Ed 600s, float levels set per Edelbrock specs. Never noticed any difference. The 351C currently uses a 650DP on a Funnelweb with a 2" spacer - doesn't seem to care that it's got a little angle to it.
Now it might on the dragster, where the engine/trans is basically level. Putting a street intake on with the scoop pan and scoop results in a rather weird looking set up LOL.