Introduction and BBC to SBC???

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Statewurker

Junior Member
Joined
Apr 16, 2025
Posts
1
Reaction score
5
Location
Central Tecas
First Name
D
Truck Year
1982
Truck Model
c30
Engine Size
454
Hello everyone, thanks for adding me into the forum. I had many SB’s over the years with SBC’s but my 82 GMC c30 single wheel is my first with a 454. I have acquired a wrist pin knock and I’ll run it until I can’t. But I’m the mean time a have a nice 350 on the stand being resealed and would really like to use all my factory 454 accessories on the 350. Stock everything including the AC compressor on the drivers side. I really do not want to open the ac system up for this swap. Having a hard time finding any info on stock ac driver side brackets for a 350. On this truck I also have hydro boost setup and remote resolve for the power steering pump. Is there a bracket package or a year model I need to look for to pick and pull or search for ? Any help would greatly appreciated.

Future for this truck is a Dana 60 and 205 t-case sitting in the shop. It’s a must do, my daughter is in love with this truck and that was her request.
 

Attachments

  • IMG_2269.jpeg
    IMG_2269.jpeg
    229.7 KB · Views: 16

ali_c20

Full Access Member
Joined
Sep 20, 2016
Posts
1,563
Reaction score
2,247
Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria.
Some components are the same but you need the right brackets for the 350. New water pump. New exhaust pipes and manifolds/headers to the rest of exhaust system. That's what comes to my mind quickly.

Go to the Rockauto page, select your truck year with the sbc engine and in a second browser window the bbc. Than you can easily find out which parts match.
 

animal

Super Moderator
Staff member
Super Moderator
Joined
Jul 30, 2010
Posts
5,705
Reaction score
4,000
Location
Georgia
First Name
Lee
Truck Year
1986
Truck Model
c10 silverado
Engine Size
350ish
:welcome:
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
3,348
Reaction score
9,659
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.
 

Strick

Full Access Member
Joined
Nov 25, 2020
Posts
1,629
Reaction score
4,243
Location
Dunn, NC
First Name
Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
Welcome from Central NC. Does your big iron have the radial or axial compressor on it? The radial is the smaller pancake style and axial is the longer and was used on BBC trucks right on through the late eighties on most.

HS
 

WFO

Full Access Member
Joined
Jan 6, 2017
Posts
3,886
Reaction score
5,440
Location
Texas Panhandle
First Name
Dan
Truck Year
1986
Truck Model
K20
Engine Size
350
Welcome from up in the Panhandle.
That's a good lookin truck.
 

Mr Clean

Super Moderator
Staff member
Super Moderator
Joined
Aug 18, 2010
Posts
10,658
Reaction score
11,582
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:

You will need most brackets. Do to the size and with of the two blocks. Alt brackets BB and SB two different sizes. IIRC the power steering lower brackets are the same, the upper adjusting bracket is different. Like mentioned earlier the A/C brackets are way different, and depends on what compressor you are using.
 

Latest posts

Forum statistics

Threads
45,461
Posts
983,927
Members
38,511
Latest member
Ninao
Top