Part Id

[halg]

People are continually asking for single plane manifolds and 4 to 2 exhaust from 1800's as upgrades. I have both items , but not sure what engines they are from. Did the 1800 have different carburetor bolt patterns and exhaust flange bolt patterns?? What would identify an 1800??
Hal

[carl55]

I think the 1800 exhaust has a 3 bolt flange 2000 4 bolt.
!800 intake is single plane

Hope this helps

Carl

[perthling]

All my 1800 exhaust manifolds have four bolts... ?

[carl55]

All my 1800 exhaust manifolds have four bolts... ?

Your right, sorry, I was thinking of the down pipe.

[narfire]

I thought the 2000 have 6 studs from manifold to downpipe and others are 4 bolt/stud. Manifold to head- memory is foggy cause of the "The Macallan"... 5 studs
Somehow I have both single plane and dual plane intakes from a 1800 engine.

[manoa matt]

Fuel injected (2Liter) 4-2 exhaust manifolds have 6 bolts, while the early 73-74(1592cc and 1756cc), 4-2 exhaust manifolds have 4 bolts.

[rasouth]

I have a '78 with an 1800 motor and my exhaust manifold has 5 bolts.