WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Need a pair of Exhaust manifolds for the new project truck. Looking for casting 3989036. These are the Ram Horn straight dump for a 1972 Chevy SB 350. Thanks in advance for the help.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

i have a pair that were on a 72, i will check this week. condition unknown

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Thanks

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

i will get in shed sunday, i been workin stupid hours

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

no luck, i musta got rid of them.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Are you looking for original? If not, checkout Speedway Motors.

http://www.speedwaymotors.com/Smooth...Raw,94194.html

Of course they are out of stock right now, but they have other options. http://www.speedwaymotors.com/Shop/C...ifolds/15.html

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

i have over 10 pairs of these,great southwest manis---277.39shipped

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Thanks for looking.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Can you send me pictures of a set. Thanks

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Still Looking Please!

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

I have a serviceable pair that came off a 1972 C50. I am putting the engine and trans in my 49 Studebaker farm truck, and can't used these manifolds (well, I could use the right side, but prefer to make them match, so I am using some different log style. Would rather use these, but the left one interferes with my steering box.

I think the number you cited is a 1970 number. Don't believe it was used in 1972, but I am not a manifold expert by any means, and could be wrong.

The ones I have are drilled for smog, but the holes have been plugged. I don't know for a fact they are original the C50. One is 386711, which is for certain a 1972 number, but I didn't see a casting number on the other one. They look alike. Don't know about truck usage, but that number was used on both sides of a 1972 Corvette with the LT-1. One broken stud. I haven't tried pulling it. I don't think I even soaked it with penetrating oil. Either it will come out or you end up drilling and tapping.

I can send you pics, or post them here. PM me if you want me to send pics to an email address.

$100 plus actual shipping for the pair.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Yes i tried them. No luck!

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

I have a pair that were on a 1972 K-5. I just pulled them off and their sitting in my shop. I can get better pics tomorrow.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

I think what Kinsolver72 just posted is probably what you want. I can't read the casting number. Not sure how serious you are about originality.

I have a pair, but numbers are not even close to what you posted.

Also, I MAY decide to use one of them. Just can't make up my mind right now.

Mine are 386711 and 14081238. The 386711 was commonly used on Corvettes in 1971 & 1972.

They have provisions for smog tubes, but the holes are plugged with metal plugs.

I promised pics, so here they are. Sorry for the crappy quality.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Pics.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

If you're interested I could do $85 plus shipping.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Whats the casting number?

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Thanks, Need without smog.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Little better pic.

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Casting 3932461
Let me know if you want them.
Thanks.
Scott

Re: WTB 1972 350 4x4 Exhaust Manifolds 3989036
 

Got what we needed thanks all.