1989 K3500 8.1 Liter

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andy396

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I tip my hat to you. I thought going from a TBI to Vortec L29 7.4L was challenging. I can only imagine the challenges you faced with this build. You make it look so easy. Nicely done. It looks great!
 

Chuckersw

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Hey, how do you time the coils? Can this be done to my 454? Ive heard of the multi coil set up being added to a 454 voete.
 
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I tip my hat to you. I thought going from a TBI to Vortec L29 7.4L was challenging. I can only imagine the challenges you faced with this build. You make it look so easy. Nicely done. It looks great!
Thanks. It seemed for a while everything I did just created a new problem.
 
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Hey, how do you time the coils? Can this be done to my 454? Ive heard of the multi coil set up being added to a 454 voete.
The coils with this set up are timed by the computer using the cam and crank sensors. This is a factory engine just the way it came out of a 2001 Yukon XL 8.1L. I had never heard of a 454 with factory coil on plug until recently. A friend of mine that owns a wrecking yard took in a couple of 1999 Topkick's that have that set up. I can get pictures or VIN numbers to help you find the parts to do the swap if you want.
 

Jermaine Smith

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Holy Crap!! You got that box chevy moving bro!! Is that all motor or on juice ?

I love your car and your truck. My car run low 11s on motor with a 6 speed if you care....
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