727 torque converter

[LarkoBeans]

I'm in the process of swapping my 227 for a 360 5.9 liter R/T motor In My75 dart. ( I know not a big block but a great improvement none the less) with that I got my hands on a transmission and torque converter from a 318. I've been doing my research and from what I've been reading I'll be able to interchange the transmission (until money promits me to upgrade) but the torque converter wont work. My questions is how do I know whether I need a internal or external balance (I believe its external for the 360) and whether I need a 24 or 19 spline torque converter

[chryco]

I'm in the process of swapping my 227 for a 360 5.9 liter R/T motor In My75 dart. ( I know not a big block but a great improvement none the less) with that I got my hands on a transmission and torque converter from a 318. I've been doing my research and from what I've been reading I'll be able to interchange the transmission (until money promits me to upgrade) but the torque converter wont work. My questions is how do I know whether I need a internal or external balance (I believe its external for the 360) and whether I need a 24 or 19 spline torque converter

Hi ! Your swap sounds fine and will work out well for you I`m sure. You are correct all 360`s are externally balanced . 318`s from 1974 and up are also externally balanced. You can check your 318 converter by looking at the side that faces the engine . There will be a piece of metal spot welded on near the ring gear , if it`s an earlier 318 it will not have the weight welded on and will be smooth except for the bosses for the flexplate bolts. If the weight is present the converter is usable . The other possibility is to obtain a zero balance flexplate from B&M ( Summit , Jegs , Mancini , etc) if you don`t have an "externally balanced " converter. The spline thing you mentioned is a non-issue.
Chryco

[gerry holmes]

i've changed from 318 to a 360 before, and you can actually buy the weight from a converter rebuild shop and tack weld it on.

[oldkimmer]

....................No 318s were externally balanced...........get the right B+M flexplate for ur application.......what y6ear is ur trans, if 68 up no worries.................kim............