1969 Nova L-78 Exhaust manifold numbers

[Michael 396]

Looking at a 1969 SS 396-375 HP Nova, currently has headers, owner has orginial exhaust manifolds, any idea on correct numbers for I can verify.

Thanks

Michael 396

[NCGuy68]

Michael,

Manual tranny cars usually have the following casting numbers:

LH. # 3909879
RH. # 3916178

They may or may not have threaded bosses for the A.I.R. tubes. Of course, they will have 'cast-in' date codes as well.