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2.8 / 3.1 L Specifics The Never-forgotten 2.8L and 3.1L V6

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Old 09-30-2015, 07:59 PM
joshua52mcclain joshua52mcclain is offline


 
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Default 3.1 to 3.4 swap

Hi im new to v6 f-bodys had acouple irocs,74 z28,elco and im now into v6s I currently have a3.1 hybrid grand prix (selling) I was recently given a 91 firebird 3.1 5speed and im looking into buying a 3.4 camaro/fb and building that motor while I drive my firebird. Now my question is what do I need to do to swap to the 3.4 I know its got coil pacs in place of the distributor but other than that both are 60degree motors both are sfi (I think) ans both are obd1 now whsts the main differences in wireing,mounting and computer compatibility and I guess most important will it bolt up to my t5 transmission?

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Old 10-01-2015, 02:26 PM
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xpbr2000 xpbr2000 is offline
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i'm pretty sure both 3.1 and 3.4 have the same bolt pattern on the bell housing. I can't know for sure though. i don't have either.

you will need the PCM and the engine harness. hopefully the 91 body harness didn't change too much when it changed to 4th gen in 93

Fasteddi is one of our 3rd gen gurus. i'm sure he'll chime in soon.
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Old 10-01-2015, 05:01 PM
joshua52mcclain joshua52mcclain is offline


 
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I've talked to him before about turbocharging a 3100 didn't think of asking about the swap

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