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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jun 2008 Posts: 1,644 'Bolter | | 'Bolter Joined: Jun 2008 Posts: 1,644 | Need some help identifying a NOS GM rams horn exhaust manifold I bought at the Decatur swap meet last weekend. It's got the original paper band still on it which reads.......
GM Parts Div.
372243
GR-03.601
01D7
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The actual casting numbers on the manifold itself are:
1408
1238 (stamped just like this, one # over the other)
on the backside is the number...
13L6F
If anyone can decipher these numbers so I can know when it was made and what motor and vehicle it was originally made to fit on I would really appreciate it.
Many thanks,
Chuck
Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
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