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Wrong Intake

Stingray74CC

Well-known member
Joined
Nov 23, 2001
Messages
183
Location
San Diego, CA
Corvette
Black Cherry 1969 Stingray
It's been a while since I've surfed the webpages of the Corvette Action Center. I see alot of familar names. I'm glad to see that alot of you are better at sticking around than I am.

Anyhow, for the longest time, I've had problems with my tri-power setup. Vacuum leaks, plugs constantly fouled, no choke, gas leaks, stumbling on acceleration, backfire in the carb and exhaust so on and so on. So I've decided to change the intake and carb to an edlebrock setup...nothing fancy but hopefully make it run alot smoother and maybe even a little more power.

I went on Summit and ordered the parts that supposedly fit the car...intake happened to be a torquer II (the only one they sold that fits under a stock corvette hood). Well there was an issue, the intake ports on the heads are visible when I set the torquer II on the engine. I haven't done this type of work before on the car so I wasn't sure about the size when I ordered the part or even looked at it out of the box.

I did a little bit more internet searching and found a C427X that Edlebrock makes/used to make that will supposedly do the job.

Does anyone have any experience with this or have any recommendations on the parts I should use? BTW, the engine is an L89, 1969, 427.

Great to be back on the site.

Anthony
 

jim coulter

Well-known member
Joined
Dec 3, 2002
Messages
157
Location
covington,tn
Corvette
71 big block, 84 coupe
Not sure what heads come on L89, but sounds like you have an oval port intake and rectangular port heads or just the opposite. Look and see what intake you have, oval or rectangular, and then check your heads. Summit will probably let you return it in exchange for the right one plus whatever stocking fee or price difference.
 

6880 Mike

Well-known member
Joined
Jun 30, 2006
Messages
2,723
Location
The Bluegrass State
Corvette
1968 convertible; 1980 L-82
L-89 indicates the optional aluminum heads for the L-71 427/435 big block. Sounds as if your new intake would fit the iron heads, but not the aluminum. Give Summit a call and explain the situation.

:)
 

Stingray74CC

Well-known member
Joined
Nov 23, 2001
Messages
183
Location
San Diego, CA
Corvette
Black Cherry 1969 Stingray
They are aluminum heads with the square ports. Before I took the thing apart, the guys at summit told me it'd be oval. I'll give them a call today to see about correcting the issue.
 

jim coulter

Well-known member
Joined
Dec 3, 2002
Messages
157
Location
covington,tn
Corvette
71 big block, 84 coupe
Unless they have changed, according to my 2006 Edelbrock catalog, they only make the TorkerII for big block chevys in oval port design. Maybe they will give you credit.
 

Crimson Thunder

Well-known member
Joined
Dec 16, 2001
Messages
814
Location
Orange Park FL USA
Corvette
1970 Marboro Maroon Convertible
Might have to start searching for a factory 65 L-78 or 66 L-72 square port intake,although im not sure it will fit under the hood.Be careful, the NCRS fanatics will hunt you down for taking apart an original L-89.:L
 

Jack

Well-known member
Joined
Dec 27, 2000
Messages
1,825
Location
Florence, SC (Timmonsville SC)
Corvette
71 War Bonnet Yellow VERT 71 BH Blue CPE (SOLD)
Welcome back Anthony:
Sounds as though you know where to go w/ the oval-rectangle port issue. I remember you from this forum ... as far back as when you were a middie & attending classes on the right coast.:pat

Fair Winds & Following Seas,
Jack:gap
 

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