OK, its winter here in Ohio so the Mav. is back in the garage . I have been going back there with my cup of Joe and so far just looking and thinking . My first winter project is simply going to be detailing the engine and compartment......cleaning, painting and some add ons . So........thinking about redoing the carb. My thoughts...changing the intake to accept either a two brl, four brl. or even a cool looking Tripower set up. I really don't want (at this time) get into cam changing....simply going to re-carb and a set of headers....so what are your thoughts...one question I do have is: Can I simply go to a carb upgrade with the exisitng intake? Any adapters out there to take it from a single to a two brl. using the exisiting intake? Comments welcomed. Thanks.
Assuming your car is a v8. I would swap to an aluminum intake such as a performer and a 4 barrel carb. If you want a 4 barrel don't go with the adapter solution. Simply giving up performance to save a few bucks. Multiple carbs are cool.but since your asking these questions I would not reccomend that solution, especially without a cam change.
I should have been more clear. The Mav. is a 250 IL.....I already have been through all the conversations and explanation as to why I am not going to do the V8 Swap....so...going to keep her as original as I can and keep the 250 with some minor upgrades, thus the headers and carb upgrade. With that now explained, the question remains: Can a simple upgrade from the single carb to a dual brl. carb be done using the exisitng intake? Thanks.
Your limited by the design of the factory cylinder head. It has a cast integral intake. You can get an adapter to put a 2 barrel on it. Beyond that it requires expensive parts. Check out www.classicinlines.com I am sure some of the 6 cylinder enthusiasts will chime in.
What would be the reason to do these mods? What are you goals? A little direction will help us steer you in the right direction.
Mods are simply to get a little bit more performance and sound out of the engine. Remember, this is a 77 Mav. in really nice shape and it doesn't need much., some upkeep and detailing. I love the car and use it to cruise and stop in some shows. It's mostly all original and I am going to keep her like that. Not lookig for any High Performance upgrades, simply some "add ons" again to get some sound (thus the headers and dual pipes) and maybe some additional performance (thus the carb upgrade)....thats about it.
As previously stated, the intake is integral with the head so that makes things more difficult. Putting a 2bbl on with an adaptor is not the best solution and you most likely will have hood clearance issues. Any other modification to increase carburation will require removal of the cylinder head and machine work. There is a technique that alot of inline 6 guys, myself included, have done which is to machine the intake to allow direct mounting of a 2bbl carb like a Holley or Autolite. You can see pictures of this on www.classicinlines.com along with other performance options.
Gene; If I correctly understand what you did and then reading the inline website tech info, you simply machined the existing intake to allow for direct installation of the 2V rather than using an adapter...correct....but, the adapter (according to the tech info) can be used rather than machining.....I guess the difference is using an adapter or not. Also, I guess you get a bettter performance result by machining the intake...I am understanding this correctly?
Very well.....looks like the Headers and the carb upgrade may be the trick....then again if I get a little adventurerist......? on spelling.....I may do some cam work...thanks for all the suggestions....Happy Thanksgiving
---Set of headers, your choice. ---Dual glasspacks, 2.5" exhaust pipe --- as for carburetors...a carter YF is perfectly fine, if you want 2 barrel you will need a machine shop to direct mount it for you (stovebolt website has some nice options), tri carb setup isn't cheap and is too much carb for a stock six. now if you swap the cam, bore the motor, and bump compression the tri power is fine. grab the ford six performance handbook if you havent yet good luck
If you have a 1977 head, then already have the big intake log and valves. I am in the process of having my head rebuilt. Milled for the Holley 350 carb, mill the head .075 and larger valves. Adding a 274/110 cam and headers. You to get I-6 handbook to guide you through the process. I'll get the web page for you. http://www.fordsix.com/tech.php http://www.classicinlines.com/products.asp?cat=73 Rick
I am aware of the "Performance Handbook" and been meaning to obtain one......I recently purchased a number of books for the Mav, including a complete set of shop manuals...just to have. Over the years I have worked on vehicles of all sorts and this Mav. in all honestly seems to be one of the easiest to work on...accessibility, simplicity...it's a nice piece. As for the performance upgrades, I truly appreciate the tip and suggestion on the head re-work and may consider it, but as I noted earlier, she is in great shape and I enjoy cruising so......right now I am thinking, headers, carb upgrade, detailing the engine, paint, new gaskets and compartment....and then waiting for spring. Now that may change if one of my buddies stop down and wants to volunteer on some engine work, e.g. heads re-done, cam whatever. Thanks again to all and keep the suggestions coming in......Happy Turkey Day!
Check the fordsix.com ads. They have the bolt on carb adapters for sale a lot. Or place a want ad. Happy Thanksgiving to you. Rick
