Intake Manifold/Carb Install Tips Please
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Intake Manifold/Carb Install Tips Please
I am installing a new intake manifold(weiand) and carburetor(holley 3310-750 cfm) in my 69 f-250 with the 360. I have never installed a manifold or a carburetor(this is sort of a restoration project / learning experience for me). I want to know if there is any special procedure in doing this. Here are some basic questions I have:
1. What do I need to take off to get the intake off?
2. What is the procedure for putting the new intake on? Does anyone know what to torque the bolts to, and is there any pattern in which I need to install the bolts?
3. How do I hook up the carb to the intake? The old two barrel intake had a spacer between it and the carb, do I need a spacer for this installation, or can I bolt the carb straight to the intake?
4. Should I replace any of the other components..hoses, lines, etc? I have a new fuel lines.
5. Any other tips, tricks that would be helpful?
Thanks,
Andy
1. What do I need to take off to get the intake off?
2. What is the procedure for putting the new intake on? Does anyone know what to torque the bolts to, and is there any pattern in which I need to install the bolts?
3. How do I hook up the carb to the intake? The old two barrel intake had a spacer between it and the carb, do I need a spacer for this installation, or can I bolt the carb straight to the intake?
4. Should I replace any of the other components..hoses, lines, etc? I have a new fuel lines.
5. Any other tips, tricks that would be helpful?
Thanks,
Andy
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From: Iowa
to take the old intake off, just remove and hoses, lines, etc.. from it. take the kickdown loose from the carb, remove valve covers, throttle linkages and any other stuff thats in the way. make sure all of the old gasket is cleaned off the block and heads.
to install the new intake, make sure you have a friend help, put permatex sealer around the water jackets in the heads and extra sealer in the back where the manifold meets the block and a extra dab on each corner. i think you torque the manifold bolts 32-35, in sequence start in the middle then go to the corners then come backanddo the rest in a zig zag pattern. if you didnt get what i just said jus say so and ill tryto explain it more. good luck
to install the new intake, make sure you have a friend help, put permatex sealer around the water jackets in the heads and extra sealer in the back where the manifold meets the block and a extra dab on each corner. i think you torque the manifold bolts 32-35, in sequence start in the middle then go to the corners then come backanddo the rest in a zig zag pattern. if you didnt get what i just said jus say so and ill tryto explain it more. good luck
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First off a 750 carb is too big. Next disconnect everything to the intake. Take the valve covers off. The rockershaft has to come off. there are 4 bolts and you should loosen them a turn at a time or you can bend the shaft. Keep the bolts in order be 1 bolt in each head oils the valvetrain. They are in the 3 and 6 cylinder locations. Then twist the pushrod before you pull them out or a lifter you rise and lay in the lifter gallery. Had this happen on the 2nd rod so i wised up quick. Yeah using a bead of oil resistance permatex is best. Then you can reasemble it. use something on the water passeges.
shafts 40-45
manifold specs 32-35
heads 80-90 I like to do 60ftlbs then 90.
Be careful with the 75 lb intake. Its best to use a hoist or take the hood off and stand over the motor to lift it up.
shafts 40-45
manifold specs 32-35
heads 80-90 I like to do 60ftlbs then 90.
Be careful with the 75 lb intake. Its best to use a hoist or take the hood off and stand over the motor to lift it up.
Last edited by fordeverpower; May 26, 2004 at 10:59 PM.
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Originally Posted by eandaauto
Thanks, that was very clear. Just another question, do you know how much hp/torque that should add to an otherwise completely stock engine?
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Thanks fordeverpower for the additional info. You think the 750 is too big? When I got the intake, i looked at the weiand website and on the list of recommendations were a couple of 750 cfm carbs. What problems might this carb cause? I got it for a really good deal, so in any case its no big loss if i don't use it.
Fordfan428- the intake is a weiand hi-rise, single plane - #7282 for ford fe engines.
Fordfan428- the intake is a weiand hi-rise, single plane - #7282 for ford fe engines.
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i think you will have some bottom end bog or less torque than a 600. I'm saying a smaller carb would have more crisp acceleration and have better low response. Just tune the a/f mixture with a vaccum gauge. Kinda keep the 750 detuned and you will be okay.
Is the 360 a 2bbl right now?
Is the 360 a 2bbl right now?
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that is a pretty good intake, like i said before prolly a 30hp gain, and the problem with a 750 being to big is, its just overall getting to much gas for a pretty much stock engine unless your goin will ported heads, bigger valves, id say a 600cfm or a 650cfm would be just fine. if you want to get rid of that 750 drop me an email my edelbrock 750 is a POS on my 375hp 390.
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Well im gonna go ahead and try the 750 on it and see how it does. If not, Ill take a look at a 600 or 650. Yes the 360 is a 2bbl right now, and it runs like crap because the carb is missing parts needed for the choke to work. Its not the manual choke, some guy at the auto parts store said it was a thermostatic(or something like that) choke and i was missing parts needed for the choke to work. Id fix that, but I wanted to get a 4bbl carb and new intake anyways.
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hey matt i will be gettin a demon or a street avenger 770 hopefully sometime this summer but money is tight right now, the edel 750 i got cheap used and cheap is the key word, i cant even get it to run on it, itll start and idel but u give it gas and it dies, ive narrowed it down to the carb, because i tried a friends 650 holley and it ran fine on it but of course i had to give it back and i havnt even got the truck out of the shop yet. its really bugging me cuz thats the only carb i got and dont have the money for a new one yet.
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I have to say, you guys are pretty awesome, i got three more replies while i was writing the last response.
Ford man 428 - I'd consider that. I just bought the carb off a guy on ebay that says he installed the carb and ran it once, then decided to go with a bigger carb. Its the holley 3310(4610 model) with a manual choke. If you are interested, check out the ebay auction site for pictures of the carb. I bought it for 95 including shipping, and would let it go for that much plus the cost of shipping to you.
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWN%3AIT
Ford man 428 - I'd consider that. I just bought the carb off a guy on ebay that says he installed the carb and ran it once, then decided to go with a bigger carb. Its the holley 3310(4610 model) with a manual choke. If you are interested, check out the ebay auction site for pictures of the carb. I bought it for 95 including shipping, and would let it go for that much plus the cost of shipping to you.
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWN%3AIT
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demon seems to be better! They cost a bit more and they supposedly flow 10 more than advertised. Meaning a 650 would flow about 715cfm. I think the street avenger is good once you get the choke and fast idle set properly. The avenger comes with 2 secondary springs one to open the 4bbl sooner or later and i try all three and the sooner one works. I thought i would try the heavy spring since i had a haevy vehicle and thought soom mpg would be good but then my alterevil horsepower kicked in and in went the light spring and its stayed in.