C3 Stock Manifolds & Related

Want to listen to the exhaust systems?
Check out our exhaust sound and video gallery to
watch videos and listen to audio clips.

Manifolds and Related

Year Description Part No. Price  
1970 - 1971 •• 350 Exc. HP L.H. Exhaust Manifold 322055 $122.00 Detail
1968 - 1980 •• Exhaust Manifold (68-71 R.H., 72-80 350 L.H. & R.H.) 322048 $122.00 Detail
1968 - 1969 •• LH 427 Exhaust Manifold 322067 $159.00 Detail
1968 - 1974 •• RH 427/454 Exhaust Manifold 322075 $154.00 Detail
1968 - 1969 • 427 L.H. Exhaust Manifold - Exc. A.I.R. 322015 $335.00 Detail
1970 - 1974 • 454 L.H. Exhaust Manifold - Exc. A.I.R. 323020 $385.00 Detail
1968 - 1974 • 427/454 R.H. Exhaust Manifold - Exc. A.I.R. 322016 $335.00 Detail
1968 - 1969 • 427/454 L.H. Exhaust Manifold - w/A.I.R. 322017 $379.00 Detail
1968 - 1974 • 427/454 R.H. Exhaust Manifold - w/A.I.R. 322018 $379.00 Detail
1966 - 1980 327/350 A.I.R. Tubes - Exc 75-76, pr. 322107 $189.00 Detail
1968 - 1971 427/454 A.I.R. Tubes, pr. 323028 $180.00 Detail
1972 - 1974 454 A.I.R. Tubes, pr. 323029 $180.00 Detail
1968 - 1982 Emission Hole Plug for Exhaust Manifold Set (8 pcs.) 322005 $19.55 Detail
1968 - 1980 ••• Exhaust Manifold Stud w/Brass Nut Set (12 pcs.) 321105 $12.95 Detail
1968 - 1980 Exhaust Manifold Studs w/Top Lock Nut Set (12 pcs.) 321027 $13.95 Detail
1968 - 1980 ••• Stainless Steel Exhaust Manifold Stud w/Nut Set (12 pcs.) 321107 $22.00 Detail
1968 - 1974 Exhaust Manifold Nut Set (Correct "Toplock" Type) (6 pcs.) 341003 $6.95 Detail
1968 - 1980 ••• Brass Nut Set (for Exhaust Manifold Stud) (6 pcs.) 341061 $6.95 Detail
1968 - 1980 ••• 327/350 Exhaust Manifold Bolt Set Exc. AC (12 pcs.) 322025 $15.75 Detail
1968 - 1974 327/350 Exhaust Manifold Bolt set w/AC 322027 $23.00 Detail
1968 - 1980 ••• 327/350 Exhaust Manifold Washer Set (8 pcs.) 322024 $7.95 Detail
1968 - 1980 ••• 327/350 Exhaust Manifold Lock Set (Plain Steel) 322130 $12.00 Detail
1968 - 1980 ••• 327/350 Exhaust Manifold Lock Set (SS) 322032 $14.00 Detail
1968 - 1974 427/454 Exhaust Manifold Bolt Set (16 pcs.) 322026 $18.50 Detail
1968 - 1974 427/454 w/PS Exhaust Manifold Bolt Set (17 pcs.) 322035 $23.00 Detail
1968 - 1974 427/454 w/AC Exhaust Manifold Bolt Set (20 pcs.) 322036 $26.00 Detail
1968 - 1974 427/454 w/AC & PS Exhaust Manifold Bolt Set (21 pcs.) 322037 $30.00 Detail
1968 - 1980 327/350 Exhaust Manifold Gasket Set 321110 $11.95 Detail
1968 - 1974 427/454 Exhaust Manifold Gasket Set 322042 $14.95 Detail

• = High quality, exact reproductions, others listed are GM re-issue.

•• = Functionally correct, cosmetically a little different, with A.I.R. holes. Foreign Reproduction.

••• = Works on 1980 w/Cast Iron Manifold.

Misc. Components

Year Description Part No. Price  
1968 - 1974 2" Exhaust Heat Riser Valve 322111 $42.95 Detail
1968 - 1974 2" Exhaust Heat Valve Spacer 322110 $35.00 Detail
1968 - 1974 2½" Exhaust Heat Riser Valve 322112 $45.95 Detail
1968 - 1974 2½" Exhaust Heat Valve Spacer 322113 $30.00 Detail
1975 - 1979 Heat Riser Valve 323040 $43.95 Detail
1980 - 1981 Exhaust Heat Riser Valve w/Vacuum Actuator 323002 $99.95 Detail
1968 - 1974 2" Exhaust Heat Riser/Spacer Gasket 322125 $3.95 Detail
1968 - 1974 2½" Exhaust Heat Valve Riser/Spacer Gasket 322126 $3.95 Detail
1968 - 1974 2" Exhaust Pipe Flange, ea. 322105 $4.50 Detail
1968 - 1974 2½" Exhaust Pipe Flange, Ea. (Flat Type) 322106 $8.95 Detail
1968 - 1974 2" Exhaust Donut, ea. 322120 $3.50 Detail
1975 - 1981 Steel Exhaust Manifold Donut Gasket, ea. 323108 $3.95 Detail
1968 - 1974 2½" Exhaust Donut, ea. 322121 $3.50 Detail
1968 - 1974 2" Exhaust Donut Sleeve, ea. 322118 $6.50 Detail
1968 - 1974 2½" Exhaust Donut Sleeve, ea. 322119 $6.50 Detail
1980 - 1981 Left Rear Y-Pipe Heat Shield 323205 $15.00 Detail
  Oxygen Sensor Hold Plug, ea. 323017 $3.95 Detail
1981 - 1982 Catalytic Converter Air Tube Kit 323763 $9.95 Detail