What other #s fit 3909879 [Archive] - Team Camaro Tech

: What other #s fit 3909879

Nov 30th, 01, 12:55 PM
I'm needing a 3909879 left side exhaust manifold for a 69 BB camaro what other (years and casting #s will fit) so I can use origonal exhaust pipes

Z28 Mark @home
Nov 30th, 01, 06:38 PM
In my Chevy by the #’s book (70-75) it lists the year of 1970 w/ a note that it was also used from 67-69. It can be found in Camaro’s, Chevelle’s, Monte Carlo’s and Nova’s (all BB cars) w/ and w/o A.I.R bosses. Hope this helps.

Nov 30th, 01, 06:57 PM
Thanks do you know the casting #s for the 70 to 75

Nov 30th, 01, 07:43 PM
3902401 was the original casting in 1966.

It was used on 1966 and 1967 Chevelles with 396 engine.
In 1967 it changed to casting number 3909879 and was used in 1967 - 69 Camaros, Novas, Chevelles with 396 and 427 engines including the COPO and ZL1.
3909879 casting number was carried over to 1970 and used in Camaros, Chevelles, Monte Carlos and Novas with 402 and 454 engines. It looks very similar to the 1971 and 72 402 and 454 exh manifold, casting number 3989343 and 1973-75 Passenger and Chevelle 454 manifold, casting number 329225.

Nov 30th, 01, 08:07 PM
This makes my search alot easier Jonesy cause I'm not all that concerned about matching #s just a clean stock appearence

Jun 29th, 09, 11:51 AM
Any one know if the 3989343 will work for the LH side in 69 big block?

Will this dump in the same location as the 3909879?

67 Plum
Jun 29th, 09, 12:02 PM
Here are some in the classifieds http://www.camaros.net/classifieds/showproduct.php?product=35512&cat=all

Jun 30th, 09, 05:57 AM
That manifold 3909879 is reproduced.....Check with most of the part suppliers. I saw a new (repop) one on ebay a while back with a Buy It now price of $27.

Might be worth a look if numbers don't matter.

Good luck