Need help finding new intake manifold!

[Rainer3012]

I have a 1980 L82 vette, which tossed a bearing recently and the motor was trashed. Come to find out it wasn't the original L82 motor at all but a crate from the mid eighties (guessing on this). Anyways I decided It would be cheaper to replace than rebuild so I found a hot little motor from GMPP its a 350 with 330hp and vortec heads, an extra 100 HP over the cars original motor and a decent price tag as well. My problem is finding a Vortec intake manifold that can fit under my stock 1980 hood. I'm gonna be using a Road Demon 625 carb. Is there any way to find a low rise manifold that fits, or prehaps a smaller air cleaner combination that works?

 

[MaineShark]

An Edelbrock Performer Vortech should fit.

Joe

 

[Rainer3012]

Edelbrock Intake

I looked at it before and their web site has me a little worried.


"Performer Vortec (Idle-5500 RPM)
Based on the popular and powerful Edelbrock #2101, this dual-plane intake is designed for the street rod, industrial and engine swap market utilizing 262-400 c.i.d. Chevy V8s with 1996 and later Vortec (L31) cast iron or the new Edelbrock E-Tec aluminum heads. Manifold has provisions for external water bypass and may be used on either Vortec blocks or 1995 and earlier blocks. No provision for exhaust heated chokes. Accepts both square-bore and spread-bore carbs and late model waterneck, alternator, HEI and air conditioning brackets.<b>Will not fit under stock Corvette hood.</b> Available with standard finish or polished. For high performance engines operating from 1500-6500 rpm, see the Performer RPM Vortec #7116 manifold below."

I'm confused as to which corvette hood this refers to I know in 1980 they lowered the profile of the hood a bit.

 

[MaineShark]

I guess you're right, the Performer Vortec is quite a bit taller than the regular Performer. Dunno why.

Joe

 

[Macgyver]

If thats the same GM crate engine that Im looking at then take a look at Scoggins http://sdpc2000.com/cart.asp?action=prod_detail&catid=120&pid=115
When you check it out it gives some extra options at the bottom that would go along w/ the purchase and it does list the Edelbrock Vortec Performer intake. I would give them a call and check the height requirements. Let me know as well because this is exactly what Im going to do in as soon as this motor blows or in March, whichever comes first. I plan on getting a new paint job along w/ the Stinger hood anyways but the paint and hood might just have to come sooner.

 

[Rainer3012]

yeah thats the same motor, and the same intake, the edelbrock performer vortec. The ointake does match the motor but I have yet to see if it fits the stock hood. I found an article about a guy with an 81 that put the same motor in his car and got the intake to fit, i'm gonna call the shop that did the work to findo ut the exact specs.

the article is here
http://www.corvettefever.com/featuredvehicles/88158/

lemme know if you have any more info

 

[Macgyver]

Well thers one other thing. If you know how much over the stock height its going to be in total you can compare to that. W/ my edelbrock open air element cleaner adn the stock intake and engine I have 1in of extra space. You can get a piece of foil and wad it up loosely and then place it on the wing nut of youre air box. Then just drop the hood on it. Measure whats left and thats exactly what you got remaining.

Cant take credit for the idea though...

 

[Rainer3012]

Sounds like a good idea

Well I picked up an Edelbrock Performer Vortech, well see how that goes. I'll post how it fits...

 

[Jack]

carb pad heights

For reference, the cast iron intake below was OE on my 71 L-48. Air cleaner-to-hood clearance is also a function of the angle produced by both front & rear carb pad height.
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Intake Manifold, OE Cast Iron GM C/N 3973460
F = 2.69” R = 4.38” (rather steep angle)
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Intake Manifold, Edelbrock Performer P/N 2101
F = 3.50” R = 4.60" (less steep angle than OE)
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Intake Manifold, Weiand Action Plus P/N 8004
F = 3.50” R = 4.00” (even less steep angle than 2101)
---------------------------------------------------------------------------

JACK:gap