Small Block Swaps:

The correct small block oil pan for this swap, PN 53009878, has been discontinued by Chrysler, but may be found used in the 1990-91 318 Dakotas.

The easiest way to fabricate a small block pan is to graft a V6 Dakota sump onto a 318/360 pan using the V6 pickup and screen. Remember that 360 oil pans are unique and do not interchange wiuth 273, 318 or 340 pans.

B/RB Swaps:

On the B/RB pan, we've had success using the Milodon 4x4 pan, #30890, and shortening the sump approximately 2" to get a measurement of 6" from the back to the front. The recommended pick up and screen, #18455, works fine.

The small block water pump we've had success with is the pre-'71 model measuring approximately 5^1/2" from back to pulley nub.

In '87-89 models, an electric fan is required. There is plenty of room for a fan in front of the radiator if you remove the center grill support bracket behind the grille.

Small Block:

Small block exhaust manifolds, left and right, can still be bought from Chrysler, PN #53010188, and PN #53030189. They work perfectly and can be bolted to the V6 Y pipe, if desired, with minor modifications. Small block headers can be purchased from Mopar Performance, PN #P5249527 — these are an excellent fit.

B/RB:

For the B/RB we used the '62-65 B-body manifold on the RH (passenger side), #2205898. Most any passenger car driver's-side manifold will fit on the left. Headers will require some fabrication.

• Fuel lines will have to be relocated.
• Some models will require tranny lines to be relocated
• V6 trannys and bell housings will bolt to your small block. All factory linkages should be in the same location, and will work fine.
• 727 and 904 transmissions will require a tranny adapter plate, unless your vehicle came with a 3 speed automatic (some '87-91 models).
• If you change from a 4 speed automatic overdrive to a 727 or 904 transmission, your drive shaft will have to be shortened.
• Some models have fuel pumps in the gas tank. A fuel regulator is needed to achieve the correct pressure.