Help Decoding Exhaust Manifolds. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Getter-Done** · Yesterday, 10:29 PM

If I remember correctly,
Someone on the forum has a Book that covers the Castings numbers on Intake and Exhaust manifolds.

I used my Normal searches and some of Same Cast # manifolds that I found on E bay

looks different.
I think it has something to do with the LH 24 & RH 6 under the casting #.

So Here is my Question.

Does anyone know what this Pair of Exhaust Manifolds came off of?

Left manifold has a casting # of 3832473 with LH 24 under it.

Right Manifold has a casting # of 3838956 with a RH 6 under it.

Thanks in advance for the help.

My guess is a 69/70 307cid.?

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Yesterday, 10:29 PM	#1
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 8,599	Help Decoding Exhaust Manifolds. If I remember correctly, Someone on the forum has a Book that covers the Castings numbers on Intake and Exhaust manifolds. I used my Normal searches and some of Same Cast # manifolds that I found on E bay looks different. I think it has something to do with the LH 24 & RH 6 under the casting #. So Here is my Question. Does anyone know what this Pair of Exhaust Manifolds came off of? Left manifold has a casting # of 3832473 with LH 24 under it. Right Manifold has a casting # of 3838956 with a RH 6 under it. Thanks in advance for the help. My guess is a 69/70 307cid.? __________________ ________________________________________________________________________________________ ____________________________________________ The early bird gets the worm, But the second mouse gets the cheese 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build



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