TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

[JH67FB]

I have a 79 trans am with the 403 olds engine..... i want to keep my shaker hood functional and need a little help. Does anybody know what is the tallest intake that i can use while still keeping my shaker shaking?????? i would like to use an edlebrock rpm performer intake with my setup but dont know if it will fit. please somebody help me out on this one!!

[Scott Liggett]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

My limited experience that I've seen is anything taller than a Performer won't work. It's borderline on anything except stock.

[milkovich]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

There was a guy on ebay a while ago that was making adapters expressly for adapting the Performer RPM to a shaker scoop but I don't know what happened to him.

As I recall he had a few different kits based on engine and intake combo.

[min301]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

Didn't Nunzi go through all of this,
back in the late 70's, early 80's?

[LS1 ZR2]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

Without modifying the scoop and using a different air cleaner the Performer is as tall as you can run.

We build a 403 Olds powered Trans Am for a customer with Edelbrock aluminum heads and you have to run a Performer RPM with these heads. It was way too tall to reuse the factory air cleaner / scoop. I used a Holley carb, and built a drop base 14" air cleaner into the shaker scoop to keep it under the hood and looking stock when the hood was closed.

[TC]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

This guy says he's running a Performer RPM. Might want to ask him what(if any) mods he need to do to make it fit.

http://cgi.ebay.com/ebaymotors/Cars-Trucks___1974-Admiralty-blue-Pontiac-Trans-Am_W0QQitemZ160317102476QQddnZCarsQ20Q26Q20TrucksQ QddiZ2282QQcmdZViewItemQQptZUS_Cars_Trucks?hash=it em160317102476&_trksid=p4506.c0.m245&_trkparms=72% 3A317|65%3A12|39%3A1|240%3A1318

[BOWTIE6872]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

link not working..
is it a pontiac 400
or a 403..
the 403 olds is whats in the car in this post
and I'll guess the '74 in your link t/c is a pontiac 400..

[TheSilverBuick]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

Pontiac 455 installed.

[BOWTIE6872]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

Pontiac 455 installed.

and thats the same as a 326/350/389/400/421/455

the 403 is olds... and I think the tallest we got under the hood was a performer..

[Falcon67]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

My previous experience with the 403 suggests a larger problem - that the intake you're wanting to use is worth more than the whole motor. It need more than a tall intake - unless you've had it apart and done a bunch to it. On a stocker, headers, carb and intake brings the HP from a stock 170 to maybe 176.

[BOWTIE6872]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

the 403 a turd..
but it's not that bad..
much better than fords 260

[JH67FB]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

403

My previous experience with the 403 suggests a larger problem - that the intake you're wanting to use is worth more than the whole motor. It need more than a tall intake - unless you've had it apart and done a bunch to it. On a stocker, headers, carb and intake brings the HP from a stock 170 to maybe 176.

AT LEAST ITS A GM ENGINE....... NOT GOING TO CLAIM THAT THE 403 IS THE BEST ENGINE EVER BUT MINE HAS HELD ITS OWN AND HAS DEFINATELY EARNED THE RIGHT TO STAY IN MY CAR...... MAYBE I GOT THE "FREAK BUILD" BUT I HAVE RAISED EYEBROWS WITH MY 403 IN THE PAST AND PLAN ON CONTINUING THE TREND.

[JH67FB]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

Pontiac 455 installed.

and thats the same as a 326/350/389/400/421/455

the 403 is olds... and I think the tallest we got under the hood was a performer..

Yeah so far all I can find that definately will ift is the performer.... ive seen some of the kits offered that say you can keep the shaker but am rather un-impressed at this point. I know I can fabricate some type of drop down plate but wanted to stay with as close to stock look as possible... at least until you open the hood.

[TheSilverBuick]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

403

My previous experience with the 403 suggests a larger problem - that the intake you're wanting to use is worth more than the whole motor. It need more than a tall intake - unless you've had it apart and done a bunch to it. On a stocker, headers, carb and intake brings the HP from a stock 170 to maybe 176.

AT LEAST ITS A GM ENGINE....... NOT GOING TO CLAIM THAT THE 403 IS THE BEST ENGINE EVER BUT MINE HAS HELD ITS OWN AND HAS DEFINATELY EARNED THE RIGHT TO STAY IN MY CAR...... MAYBE I GOT THE "FREAK BUILD" BUT I HAVE RAISED EYEBROWS WITH MY 403 IN THE PAST AND PLAN ON CONTINUING THE TREND.

I think the point was that the factory Cam and Compression are the limiting factors on that engine. Bolt on's don't do a dang thing until at least the cam is changed. On some of their 70's stuff GM figured out how to greatly under cam an engine. (Check out Car Crafts Pontiac Junker to Thumper 455 article (June 03?), but they seemed to have pulled it off their website)

[JH67FB]

Re: TRANS AM SHAKER HOOD... TALLEST POSSIBLE INTAKE???????HELP!!!!!!!!

403

My previous experience with the 403 suggests a larger problem - that the intake you're wanting to use is worth more than the whole motor. It need more than a tall intake - unless you've had it apart and done a bunch to it. On a stocker, headers, carb and intake brings the HP from a stock 170 to maybe 176.

AT LEAST ITS A GM ENGINE....... NOT GOING TO CLAIM THAT THE 403 IS THE BEST ENGINE EVER BUT MINE HAS HELD ITS OWN AND HAS DEFINATELY EARNED THE RIGHT TO STAY IN MY CAR...... MAYBE I GOT THE "FREAK BUILD" BUT I HAVE RAISED EYEBROWS WITH MY 403 IN THE PAST AND PLAN ON CONTINUING THE TREND.

I think the point was that the factory Cam and Compression are the limiting factors on that engine. Bolt on's don't do a dang thing until at least the cam is changed. On some of their 70's stuff GM figured out how to greatly under cam an engine. (Check out Car Crafts Pontiac Junker to Thumper 455 article (June 03?), but they seemed to have pulled it off their website)

Yes ive read it and it was a good piece.... i do agree that with the stock internals and ultra low compression it was nothing to write home about. Thank god all the stock internals have now been replaced...minus the crank i think thats all that remains internal.... a good cam and some headwork go a long way!