273 Mopar Intakes 'General Information'

Cylinder Head Intake Port Size

Cylinder Head #2658920 {1966 and 1967}
1.00" Width x 1.92" Tall

Cylinder Head #2843675 {1968 thru 1974}
1.00" Width x 1.92" Tall

Intake Gasket {Mr. Gasket #2808350}
1.05" Width x 2.07" Tall
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'273' Factory Cast Iron Intake Manifolds

Profile > Single-Plane Low-Rise

1965 ....................... #2465726
* Square-Bore
* 4-Hole
* Throttle-Bore Hole Sizes {1 7/16" x 1 9/16"}

1966 and later .......... #2536563
1966 {C.A.P.} ........... #2536770
* Square-Bore
* 4-Hole
* Throttle-Bore Hole Sizes {1 7/16" x 1 9/16"}

1966 'D-Dart' ........... #2536563 {Factory-Modified}
* Square-Bore
* 4-Hole
* Throttle-Bore Hole Sizes {1 11/16" x 1 11/16"}

LM-273/318 Marine ... #2846347-3
* Square-Bore
* Open-Plenum
* Smoothed runner-ports within the plenum-area.