1.75 primary tube headers,66 impala - Impala Tech
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post #1 of 9 (permalink) Old 05-08-2016, 10:38 AM Thread Starter
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1.75 primary tube headers,66 impala

Does anyone make a set of headers with 1 3/4" primary tube "small block" for a 66 impala ?

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post #2 of 9 (permalink) Old 05-08-2016, 01:23 PM
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Yes! But they are listed in the catalog as fitting a Camaro or a Chevelle. Anything that will fit on the second generation or the third generation Camaro or any Chevelle-El Camino will also fit easily in your larger engine bay. First generation Camaro headers may fit, but the first gen Camaro and most Novas had a rear steering gear box that your car doesn't have, and as such I can not say carte blanche that it will fit.

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post #3 of 9 (permalink) Old 05-08-2016, 01:55 PM Thread Starter
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66 is rear steer Dave

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post #4 of 9 (permalink) Old 05-08-2016, 04:52 PM
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The steering gear box is behind the front axle? I don't know it as a certainty but almost all full size cars had the steering gear box in front of the axle with the pitman Arm and Idler Arm pointing to the rear of the car.


The 1967-'69 Camaro and the 1968-'74 Nova had the Pittman Arm and Idler Arm pointing to the front of the car with the tie rod behind the front cross member. That is what a rear steer car entails.


Here is a 1969 BBC Camaro you can see the steering gear box sitting in the middle of the motor with the tubes bending down and away from the steering linkage:





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post #5 of 9 (permalink) Old 05-08-2016, 08:42 PM Thread Starter
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Yes Dave,65-70 impalas are rear steer.



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post #6 of 9 (permalink) Old 05-08-2016, 08:44 PM Thread Starter
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I wonder if the 2207 hooker super comps will fit? " 67-69 Camaro"

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post #7 of 9 (permalink) Old 05-08-2016, 10:18 PM
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You have lots of room looks like for a set of Chevelle headers to drop right in.


The larger the primary tube size the more difficult becomes making the tubes fit the chassis.


But 1-3/4 inch pipes are the smallest tube size made for a BBC and they do fit so I see no issue with it fitting the SBC. I would try a set of Chevelle headers for your year and verify the return policy before hand (generally no dents or deep scratches that mar the metal costs you a restocking fee). Return in new condition with no grease or scratches on the paint and they just sell you another set of headers were the only thing you are out is shipping.


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post #8 of 9 (permalink) Old 05-27-2016, 08:26 AM
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Chevelle headers will NOT fit. Impala and Camaro WILL.

Mike

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post #9 of 9 (permalink) Old 05-27-2016, 08:34 AM
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Quote:
Originally Posted by Michael9040 View Post
Chevelle headers will NOT fit. Impala and Camaro WILL.

Good to know. Thanks for sharing!


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