Intake manifold - Chevy Impala SS Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 02-20-2006, 08:41 AM
Jaybo
Guest
 
Posts: n/a
Post

Okay, so the specs on the Edelbrock TBI intake manifold say that it won't fit the Caprice. What intake manifolds have folks gotten to work? Can the stock unit be improved?
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 02-20-2006, 09:09 AM
TierAngst
Guest
 
Posts: n/a
Post

No after market manifolds fit the caprice. You can however make them fit. Heres the deal... since the distributor is tucked under the cowl in the back of the engine bay they made our intake manifolds with larger distributor holes so that you can angle them more to get them out of the engine bay. You have to bore out any new manifold that you get in order to make them fit. You can also use any manifold that ever went on a gen1 sbc for these, the ones for the older style heads will however need additional modification on top of just the distributor hole they used a different bolt angle for the manifold and you have to drill the holes at a different angle. If you choose a 4bbl manifold you will have to have an adapter plate, holley and turbocity sell them along with a few other places. Hope this helps
post #3 of 16 (permalink) Old 02-20-2006, 09:37 AM
Jaybo
Guest
 
Posts: n/a
Post

So is there a way to mod the Edelbrock unit, or am I better getting a 4bbl manifold and making the mods?
 
post #4 of 16 (permalink) Old 02-20-2006, 12:52 PM
TierAngst
Guest
 
Posts: n/a
Post

I'd personally go with the 4-bbl unit but I haven't ever heard anything bad about using the edelbrock tbi manifold, the only thing you'd have to do to is have the distributor hole bored out to match your stock manifold.
post #5 of 16 (permalink) Old 02-20-2006, 01:25 PM
Jaybo
Guest
 
Posts: n/a
Post

Quote:
Originally posted by TierAngst:
I'd personally go with the 4-bbl unit but I haven't ever heard anything bad about using the edelbrock tbi manifold, the only thing you'd have to do to is have the distributor hole bored out to match your stock manifold.
And any competent machine shop can do this? I wonder how much the charge is likely to be. Have to do some research to see what the price diff is between 4bbl intake + adapter + hogging out the hole is vs. TBI intake + hogging out the hole...
post #6 of 16 (permalink) Old 02-20-2006, 02:14 PM
TierAngst
Guest
 
Posts: n/a
Post

With a bit of no how and the right tools you or a friend may be able to do this... if you don't feel comfortable with it sure any machine shop should be able to do it for you for pretty cheap.
post #7 of 16 (permalink) Old 02-20-2006, 02:47 PM
maxwellc
Guest
 
Posts: n/a
Post

I put the Edelbrock TBI on my 93. Machine shop wanted $65 and a week to work the dist. opening. Car needed to get put together and since I was one of the first to use it, didn't know about the problem. To rectify it, I bought a truck dist. of the same vintage and then with the help of a friend, placed dist. in hole, then placed intake on. Dist. was about $100.00 but we got it running. Also, brake vac line needs to be fabbed because stock set up won't work. Fuel lines need to be tweaked slightly. Original brake vac port needs to be plugged which then interferes with upper rad hose. Made it work by grinding down head of brass fitting. And finally...unable to notice gains, if any. Others have theories on that. After I did mine, many recommended getting a 4bbl intake with Turbocity adapter. FWIW. Do a search on Edelbrock TBI, I did many replies about this and several very detailed ones about 6 years ago when I first did this.

Sean
post #8 of 16 (permalink) Old 02-20-2006, 07:51 PM
Jaybo
Guest
 
Posts: n/a
Post

Is there anything reasonable that can be done with the stock TBI manifold to improve it, or is it more cost effective to mod a 4 bbl intake?
post #9 of 16 (permalink) Old 02-21-2006, 03:35 AM
TierAngst
Guest
 
Posts: n/a
Post

If you decide to move to a bigger TB than you can port the stock manifold to match the size, thats the only thing I can think of that you can do to it. You actually have to do this if you go with a big enough TB, otherwise the butterflys will hit the manifold.
post #10 of 16 (permalink) Old 02-21-2006, 08:19 AM
Jaybo
Guest
 
Posts: n/a
Post

Okay, but performance-wise, it's as good as it's ever going to get?
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome