GM 7.4L TBI to Vortec Conversion
Has anybody attempted a TBI to Vortec conversion? When I bought my MH in 2004 I was told to buy a '96 or newer to get the Vortec but wasn't told to make sure the chassis was also the same year. I woun...
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You just need to trade up if you want the Vortex in my view. We have a 92 454 TBI and it is very strong especially if burning 93 octane which does not cost any more than 87 due to the increase in MPG.
What is your timing set on? A 454 can be a dog is the timing is off and sadly there are fewer techs that know how to tune pre OBCD II engines today.
Seriously you have a fine engine if it is tuned up well and is preferred over spending a few thousand dollars to hack to multi port injection.
The Vortex makes more power due to the cam and better breathing intake heads.
What is your timing set on? A 454 can be a dog is the timing is off and sadly there are fewer techs that know how to tune pre OBCD II engines today.
Seriously you have a fine engine if it is tuned up well and is preferred over spending a few thousand dollars to hack to multi port injection.
The Vortex makes more power due to the cam and better breathing intake heads.
