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54packman 10-18-2018 07:11 AM

Engine swap
Quick question, can a single cam engine be replaced with a twin cam engine without changing the PCM, I just spun a bearing in the bottom end in a single cam sc1, and know where there is a good twin cam motor... or do I have to switch heads over?

fetchitfido 10-18-2018 08:12 AM

Re: Engine swap
If you never go above about 75% throttle it'll be fine, otherwise the SOHC PCM's idea of full throttle fueling will go lean on the DOHC and burn up valves.
Depending on year swapping the PCM is a 'bolt-in' affair and unless prices have changed they're pretty cheap (under $70).

54packman 10-18-2018 08:44 AM

Re: Engine swap
ok thanks, I can see if I can also find a pcm for the twin cam motor as well too

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