Exhaust Manifold

All Chevrolet exhaust manifolds are made of cast iron, and they all have a raised casting number somewhere on the part.

Part Number Outlet
side		 Year Engine HP Notes
3840912 R 1967 302 290 w/o A.I.R.
327 210, 275 w/o A.I.R.
350 295 w/o A.I.R.
1968 327 210, 275 A/T
350 295
3872730 R 1967 302 290 A.I.R.
327 210, 275
350 295
1968 302 290 A.I.R. S/T
327 210, 275
350 295
3909879 L 1967 396 325, 375
1968 396 325, 350, 375
1969 396
427 425 COPO
430 ZL1
3909880 R 1967 396 325, 375 rare
3916178 R 1968 396 325, 350, 375
1969 396
427 425 COPO
430 ZL1
3932376 R 1969 307 200 A/T
327 210
350 250, 255, 300
3942527 L 1969 302 290 S/T
307 200 A.I.R. S/T
327 210
350 250, 255, 300
3942529 L 1969 307 200 w/o A.I.R. A/T
327 210
350 250, 255, 300
3946826 R 1969 302 290 S/T
307 200 A.I.R. S/T
327 210
350 250, 255, 300

 

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