'89 K5 Blazer

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IV Quattro

Junior Member
Joined
Mar 1, 2026
Posts
5
Reaction score
8
Location
Saratoga Springs Utah
First Name
William
Truck Year
89
Truck Model
Blazer
Engine Size
350
I've got an '89 K5 blazer, 4 inch lift, 37inch tires, 4.88 gears with a lunchbox in the rear. She's all kinds of fun, but recently I learned I have a cracked block and need a new motor, it's either going to be another 350, or a 5.3 ls, still trying to figure out what I want to do but it's always all kinds of fun!
 

Chewvwy

Junior Member
Joined
Mar 1, 2026
Posts
4
Reaction score
7
Location
Utah
First Name
Will
Truck Year
1979
Truck Model
Chevy K5 Blazer
Engine Size
350
I've got an '89 K5 blazer, 4 inch lift, 37inch tires, 4.88 gears with a lunchbox in the rear. She's all kinds of fun, but recently I learned I have a cracked block and need a new motor, it's either going to be another 350, or a 5.3 ls, still trying to figure out what I want to do but it's always all kinds of fun!
Obviously a different kind a Chevy. Maybe I could call it a mini square cause it's a 87 S10, but that probably just to make me feel good or something. I've got a Blazer but that's running fine. I have this 87 S10 that I'm wanting to throw in an LS and do a SAS on it to take on the trails. I'm, at least on paper, going to go with an LS just because it seems like I'd get the best bang for my buck and weight. I'm still in the planning phase of it all though. The good thing is that there's plenty of people who've done it and paved the way.
 

Strick

Full Access Member
Joined
Nov 25, 2020
Posts
2,039
Reaction score
5,884
Location
Dunn, NC
First Name
Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
The K5 is already injected so a 350 replacement is common sense answer. Welcome from NC also.

HS
 

Mr Clean

Super Moderator
Staff member
Marine Corps Moderator
Joined
Aug 18, 2010
Posts
11,410
Reaction score
14,246
Location
North East Texas
First Name
Shawn
Truck Year
1982 & 1985
Truck Model
K10 Extra Cab w/ Proper SWB, & 85 K5 Blazer
Engine Size
454 BBC, & 383 Stroker
:welcome:
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
5,319
Reaction score
20,093
Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Welcome from Missouri.
 

ali_c20

Supporting Member
Supporting Member
Joined
Sep 20, 2016
Posts
2,132
Reaction score
3,245
Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria. Got pics?
 
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