Flathead intake manifold recomendations
 

Re: Flathead intake manifold recomendations
 

I think the 77B cam is a major wast of money, as it's not much better than a stock cam.

Re: Flathead intake manifold recomendations
 

If You use an Offenhauser Regular intake for 2 97's, a generator with a pulley mount fan will fit without much 'fart'n' around.
OL' RON is right, IMO a Max 1 is a good street cam. There will be a thousand opinions about this.

Re: Flathead intake manifold recomendations
 

What would you recomend cam wise for the specs I gave Ron?
I realize that there will be a thousand opinions but from your posts that I have read, respect your advise.
Not needing a race motor and really had no intent of balancing at this point but that could change as well.

Re: Flathead intake manifold recomendations
 

With your bore and stroke, an L100 sounds like a good option. And the guy that grinds them is here on the Barn.

Re: Flathead intake manifold recomendations
 

Not sure on the 1932-1948 Offy regular dual manifold but on the 1949-1953 Offy regular dual manifold the generator mount is offset to the left 3/4" to help the generator clear the carb. Might be worth looking into before buying a manifold.

3/4" may not be anything on a F1 truck but in a 32 Ford with a 17" wide radiator, it can be a big deal, as it was with mine.

A 17" wide radiator with a fabricated fan shroud along with the largest diameter fan I can fit just wasnt going to work with a 3/4" offset to the left.

My solution was to re engineer the generator mount to the center of the manifold. It was a lot of work to fabricate.

Bill

Re: Flathead intake manifold recomendations
 

Don't think that carburetor clearance has anything to do with it.
I am running an Offy 4 bbl. manifold and it has the same? 7/8" offset which caused interference with my fan/shroud.
I fabricated an offset pulley/fan mount to compensate.



http://i11.photobucket.com/albums/a1...n.jpg~original

Re: Flathead intake manifold recomendations
 

I had a whole thread a couple of weeks ago about cam selection on a 258" (for a light car) and a 276" for a heavier car. Other than the guy who grinds the "Kiwi L100's", nobody had any suggestions on a good street cam for a close to stock motor on the street. Looks to me like a Merc cam, (If you can find one), is the best choice for a street motor. If you don't already have it, buy "JWL"'s book and look at the torque figures he got from an Isky Max-1 (oh yeah, I already own one.). Looks like a waste of money to me; and if "Ol' Ron" says a "77B" is worse, I'd run real fast from that one.

Antybody want to enter into this discussion?

Re: Flathead intake manifold recomendations
 

Stock cam, one carb. Nice and smooth, nice power and never did an engine idle like that. If you want to go really fast, drive your wife's camry. :D

Re: Flathead intake manifold recomendations
 

For this build I would also recommend The KiWi-L100 cam I can also grind you a Merc grind if that is what you choose. You would need to be sure you had enough valve to head clearance with your Edmunds Custom heads . For an intake so as to keep your stock genny & fan I would suggest a Thickstun or a tall manifold with the setback like a Thickstun .
I would recomand that you also balance your rotating assembly .
Have fun !
Cheers
Tony

Re: Flathead intake manifold recomendations
 

Since I started this thread, I researched the death out of the 39-41 Merc and have switched blocks to a C69A 46 Ford. It will be opened up to 3 5/16 with a 4" Merc crank. Pistons will be Ross 3 ring and Manley stainless valves. Cam will be the L-100 which I have read lots of good reviews about. Rotating assembly will be balanced as well. A long way off my original intent which I have digressed from. I appreciate the help to date and still looking for thoughts on a manifold for the change in engine.

Re: Flathead intake manifold recomendations
 

I am real happy with my new Edelbrock "Super" dual manifold. The design of this one puts the carbs directly over the ports. You will need an offset bracket for the generator. Cost about $250 ?

Re: Flathead intake manifold recomendations
 

HB32, why would you use Ross racing pistons in a street engine? Granted, their probably the best racing piston available. However they require excessive piston to wall clearance. Egge, makes a light weight piston that can be fir tight and has a modern ring stack. Back to alittle more research.

Re: Flathead intake manifold recomendations
 

Ross makes a street piston.

Re: Flathead intake manifold recomendations
 

Re: Flathead intake manifold recomendations
 

I did not modify the stock carrier, I fabricated a new carrier out of 3/4" flat stock, a piece of round bar and material for a small gusset.
After cutting the basic shape using a bandsaw and drill press the round bar and gusset were welded to it and then normalized.
Then it went to a machinist to bore the press fit hole for the pulley shaft.

Re: Flathead intake manifold recomendations
 

Guess I'm lazy. I moved my fan shroud over 7/8". Worked great.

Re: Flathead intake manifold recomendations
 

Pete, I didn't know that. Will have to check. We run .004/.005 clearance and 180 stats to tighten up the race pistons for street. I assume their street pistons are high on silicon? How tight can you run them I run the Egge pistons at.oo2

Re: Flathead intake manifold recomendations
 

I don't recall but a call to them will get you all the info.
I have never used the street type.

Re: Flathead intake manifold recomendations
 

Correct. I forgot what my machinist said, but it wasn't that "big" with Ross. Call their customer service/tech. line. Great company to deal with.

If I recall, using a torque plate during honing tightened up some of the clearance.