What all needs to be changed when putting a 350 in, rather than the stock 305?

25

Asked by Oct 20, 2015 at 09:54 AM about the 1997 Chevrolet C/K 1500 Silverado Extended Cab SB

Question type: Maintenance & Repair

My buddy has a 1997 Chevy Cheyenne that he blew the motor on, i
understand its a 305, and if i did the swap i would want to put in a 350, but i
dont know what to get, is it a Throttle Body Injected intake? Ive heard that it
is EFI but i dont fully understand what the difference is if there is any. Being
a 97, it would still need to pass emissions, so the computer system would
have to sync up, if its not needed i would prefer not to have to replace the
computer so if i go with a 350 could i use the 305 computer? Thanks in
advance

1 Answer

18,515

You need a 96 and up year model engine. The earlier ones are the old tbi engines and the one you have is called a vortec. Google the engines and you can visually tell the difference pretty quick. If you run a 350 you need to run the computer for it. It's very easy to swap the computer, if I remember it mounts under the hood anyway. Just get it from whatever you grab the motor from. Make sure it's the same trans as yours, (automatic or manual).

Your Answer

Add photo

Related Questions

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 3,420
#2 John Saffrahn
John Saffrahn
Reputation 2,530
#3 Rowefast
Rowefast
Reputation 2,100
View All

Related Models For Sale

Used GMC Sierra 1500
760 Great Deals out of 69,126 listings starting at $1,850
Used Ford F-150
2,058 Great Deals out of 207,340 listings starting at $1,499
Used Chevrolet C/K 2500
220 listings starting at $2,250
Used Dodge Ram 1500
411 Great Deals out of 10,833 listings starting at $1,400
Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500
Used Toyota Tacoma
473 Great Deals out of 41,591 listings starting at $1,995
Used Chevrolet Camaro
244 Great Deals out of 31,194 listings starting at $369
Used Chevrolet S-10
5 Great Deals out of 1,310 listings starting at $2,695
Used Chevrolet C/K 3500
238 listings starting at $4,797

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.