[Diy_efi] Intake Manifold choices SBC carb to TBI conversion

[Mike]

Hi Steven,
I'm going with TBI to keep costs down and so I can use mostly stock parts, 
I plan to install an RV cam at some point in time
Thanks for the reply    Mike...

----- Original Message ----- 
From: "Steven P. Donegan" <steve at donegan.org>
To: <diy_efi at diy-efi.org>
Sent: Sunday, September 24, 2006 11:51 AM
Subject: Re: [Diy_efi] Intake Manifold choices SBC carb to TBI conversion


> Well, you could use any 4BBL manifold you like and a Holley 4BBL
> throttle body and plumb the intake ports for injectors. Given it's a
> motorhome type application going for an RV style cam and an RV style low
> profile manifold should keep things in the right zone for low RPM
> torque. If you're not handy with tools doing this conversion will not be
> easy.
>
> On Sun, 2006-09-24 at 11:38 -0700, Mike wrote:
>> Hi,
>>
>>
>>
>> Well I finally decided the carb must go and be replaced. Time to convert 
>> my 350 chev from a 4bbl carb to TBI
>>
>>
>>
>> I'm thinking of using a stock GM TBI intake 87-91 on my 83 Chev, I will 
>> have to modify the two bolt holes to make it fit, but it will have stock 
>> locations for coolant temp etc and hopefully it will be a neater looking 
>> installation.
>>
>>
>>
>> My only concern is heat on the TBI intake which I believe is cast 
>> aluminum, this motor is in a motorhome it doesn't over heat but it still 
>> gets pretty hot climbing hills in a 10,500LB G series van chassis.
>>
>>
>>
>> Anyone had any problems with alum intakes because of heat in there 
>> motorhomes or tow vehicles
>>
>>
>>
>> I would like to use a stock TBI intake with or without spacer or an 
>> edelbrock TBI intake, instead of the cast iron QJet manifold with an 
>> adapter plate.
>>
>>
>>
>> The vehicle isn't required to have emissions testing and didn't have an 
>> EGR valve from the factory.  I may run an EGR valve but haven't decided 
>> yet.
>>
>>
>>
>> Any info or experiences would be appreciated.
>>
>>
>>
>> Mike.
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> -- 
> "Each new law makes only a single guarantee. It will create new
> criminals."-- John Tandervold
>
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