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620 engine.


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i just got a 78 620 and the engine feels like it needs rebuild. it wont pull at all when i floor the accelerator or when i downshift. im not really sure about the L engines so with that im thinking of swapping a ka24 twin cam but i really dont know how to do it.. anyone around Los angeles are done it? i live in glendale.

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If you cant do a simple L motor How you going to do a KA.


watch this first and get back to us.



How much money you got would be a good start. KA you can get cheap but there are more mods than you think and eleltrical wiring that needs to be done with the harness you need to get also. anybody doing it for you is going to want some money.


cheaper to fix the L motor and just drive it.


maybe its a carb issue or timming(eleltrical or mechaincal) issue.

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Very informative vid! thanks banzai. ilove this forum.


its just my friend is selling me his 240sx motor tranny ecu and everything else for a swap for just $300 since he swapped in the sr20.

Edited by uhhitsfuzzy
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