Is there an alternative motor for the 454 big block 7.4 in an 88' Silverado K3500 that may save on gas?

Asked by Feb 28, 2017 at 07:26 PM about the 1988 Chevrolet C/K 3500 Silverado Extended Cab LB 4WD

Question type: Maintenance & Repair

I have an old 88' Silverado K3500 work horse, any suggestions on a new
engine/motor to keep some of the same torque/power but maybe save a little
on petro?? Is that even an option?!

2 Answers


Sure, install a 350/383 or a smaller big block like a 396/402. With a careful engine build you could exceed the torque/power of the smogged to death 454.


More work would be to install an engine from a late model truck that is injected and built for power and efficiency like the 6.0 liter L96 Vortec.

Your Answer

C/K 3500

Looking for a Used C/K 3500 in your area?

CarGurus has 236 nationwide C/K 3500 listings starting at $4,995.


Chevrolet C/K 3500 Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Chevrolet C/K 2500
209 listings starting at $6,499
Used GMC Sierra 3500
5 Great Deals out of 242 listings starting at $5,888
Used Ford F-350
295 listings starting at $6,949
Used Chevrolet C/K 1500
892 listings starting at $3,195

Used Cars For Sale

2000 Chevrolet C/K 3500 For Sale
54 listings starting at $5,350
1998 Chevrolet C/K 3500 For Sale
37 listings starting at $4,995
1997 Chevrolet C/K 3500 For Sale
24 listings starting at $8,900
1996 Chevrolet C/K 3500 For Sale
21 listings starting at $7,000

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.