Aluminum Intake
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Aluminum Intake
I just put an aluminum intake on my 390.
Torque spec 60-65 for a steel intake.
What should I have torqued the aluminum manifold to.
I torqued to about 40 is this too much I am afraid of damaging the intake. Should I pull the bolts out and put wahers under the bolt heads. If I elect to insert washers can I do one bolt at a time or should I pull all the bolts out and torque in sequence again, or just leave it as is.
Torque spec 60-65 for a steel intake.
What should I have torqued the aluminum manifold to.
I torqued to about 40 is this too much I am afraid of damaging the intake. Should I pull the bolts out and put wahers under the bolt heads. If I elect to insert washers can I do one bolt at a time or should I pull all the bolts out and torque in sequence again, or just leave it as is.
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Aluminum Intake
Originally posted by BB
Yes, use hardened washers. Pull the bolts out and start over.
Barry
Yes, use hardened washers. Pull the bolts out and start over.
Barry
ak
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Aluminum Intake
Thanks :
I pulled the bolts out and installed hardened washers
The retorqued them.
Made a cleaner installation.
Any recommendations on a new carb, what type of mid priced wires and coil?
I pulled the bolts out and installed hardened washers
The retorqued them.
Made a cleaner installation.
Any recommendations on a new carb, what type of mid priced wires and coil?
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Aluminum Intake
Thanks for Input.
I have a Holley 600 I think I will rebuild it and us it for a whille.
I have a Holley 600 I think I will rebuild it and us it for a whille.
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Aluminum Intake
Well, I'm confused. Edelbrock says to torque to 25 ft-lbs. Is it different for different brands? I'm about to install a Performer 390 manifold on my truck. So which is it 25 or 32-35 ft-lbs?
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Aluminum Intake
Is that what they say? Then I'd go by the manufacturer's recommendations. The only different Ford spec I've seen for the FE is with the 406 at 24 - 28 ft. lbs. Don't know what the difference is.
Barry
Barry
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Aluminum Intake
Originally posted by mypa'struck
Well, I'm confused. Edelbrock says to torque to 25 ft-lbs. Is it different for different brands? I'm about to install a Performer 390 manifold on my truck. So which is it 25 or 32-35 ft-lbs?
Well, I'm confused. Edelbrock says to torque to 25 ft-lbs. Is it different for different brands? I'm about to install a Performer 390 manifold on my truck. So which is it 25 or 32-35 ft-lbs?
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Aluminum Intake
The problem is not whether you break a bolt, it's whether or not you warp the aluminum manifold...
I did it to 35 on my Edelbrock performer 390 (I think). I didn't have any problems, but that doesn't mean it right...
ak
I did it to 35 on my Edelbrock performer 390 (I think). I didn't have any problems, but that doesn't mean it right...
ak
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Aluminum Intake
Well this was according to summitracing.com. I assume they got their info from Edlebrock. I think I will go with 32 lb-ft when I install mine. I bought it off ebay and haven't got it yet.
VX if your instructions say 32-35 then maybe summit is misinformed or maybe it's 25 for chevy's. How do you like your performer 390? What size/type carb are you running? Did you notice a huge difference over a 2bbl carb/manifold?
Dennis
VX if your instructions say 32-35 then maybe summit is misinformed or maybe it's 25 for chevy's. How do you like your performer 390? What size/type carb are you running? Did you notice a huge difference over a 2bbl carb/manifold?
Dennis
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Aluminum Intake
The difference was pretty dramatic. With the 2bbl/stock intake, my 352 had a hard time breaking tires loose from a stop. Now, I can light 'em up easily, sometimes without even trying! I also threw on a 670 Street Avenger at the same time, and picked up 1-2mpg (11-12 highway now) over the wheezy old 2-pot carb IF I can keep my foot out of it (which isn't often, it's too fun to drive!). In my opinion, the Performer 390 is a great intake for a street/work truck.
Last edited by VX; Aug 27, 2003 at 06:31 PM.
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Aluminum Intake
Cool!! That's what I was hoping to hear. I can light the tires up on my stock 390 but it takes a little effort. I bought the manifold with a carb off ebay for $200, but I don't know what type carb it is. The guy I bought it from said it has D40E-AA cast on the base, and from what research I've done it might be a Motorcraft 4350? I think that is 600 cfm, but I have heard bad things about this carb. I might go with a edelbrock 600 cfm carb.
Yeah, good luck keeping your foot outta it. Nice to hear you did pickup some mileage though. That was my selling point to my wife that it would get better gas mileage.
Yeah, good luck keeping your foot outta it. Nice to hear you did pickup some mileage though. That was my selling point to my wife that it would get better gas mileage.
