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-   -   Just got me a 1989 c1500 Silverado! (https://blazerforum.com/forum/lounge-5/just-got-me-1989-c1500-silverado-70040/)

gatorboy44 Apr 26, 2012 03:46 PM

I have no idea about the newer models from 95+ cause they had all the new computer stuff, but I know on the older models a 305 to 350 swap was a breeze

abig84 Apr 27, 2012 10:20 PM


Originally Posted by K1500brute (Post 516087)
i dont know how tricky that can be and i need to find a votec 350. Plus idk how everything matches up, wiring and vacuum stuff. I know it will bolt up to the trans and engine mounts but the rest makes me worry.

the 305 is a good boat motor but when ever thats mentioned its Bust Out Another Thousand. :icon_frown:

thats got a vortec engine in it? my 90 has just your crappy ol tbi 305 in it. its got 180,000 on it and i can tow my s10 with it no problem. dont know if its been rebuilt or anything though


Originally Posted by gatorboy44 (Post 516451)
I have no idea about the newer models from 95+ cause they had all the new computer stuff, but I know on the older models a 305 to 350 swap was a breeze

this should be the same way. i have a 1990 c1500 with a 305, i have in my garage a 89 350 tbi its the exact same engine everything is interchangable. so far i have stolen the alternator, some tbi parts and the computer off that 350. all the same. old cars are awesome sometimes

gatorboy44 Apr 28, 2012 07:13 AM

I wouldn't own anything but a 350 in my truck. It's so easy to work on and it has so much power. I kinda want to find a vortec 350 and drop it in there. I wonder if a vortec one will bolt right up to a 700r4 trans? hmm

CenTexBiker Apr 28, 2012 12:59 PM

will bolt to tranny

tho you will do some cut and paste on the wiring to put in a vortec engine

gatorboy44 Apr 28, 2012 03:12 PM

Is there anything different aside from the heads?

CenTexBiker Apr 28, 2012 03:46 PM

fuel system

gatorboy44 May 1, 2012 08:06 AM

Eh not worth my time lol

CenTexBiker May 1, 2012 03:20 PM

just stroke your motor like i did

gatorboy44 May 1, 2012 10:00 PM

454 heck ya

CenTexBiker May 1, 2012 10:53 PM

454 will cost you big time
383 stroker, 454 injectors

can put similar numbers as a 454 with better mpg


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