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Frye442

Junior Member
Joined
Sep 29, 2024
Posts
3
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1
Location
Ohio
First Name
Garrett
Truck Year
1986
Truck Model
K20
Engine Size
5.7L 350
I'm somewhat new to squares. I've owned them and worked on them since I was 15-16 (I'm 31 now) I'm looking at buying a 454 big block for my 86 K20, Sm465 trans. But it has a set of pistons I've never seen before, I attached an image. My gut is telling me they are a type of domed pistons for what I'd assume is for high compression. Which then the next step would be a camshaft since the rotating assembly is balanced. Didn't know if anyone had any insight. Thanks in advance. I'm sure I'll have many more questions with my truck.
 

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Frye442

Junior Member
Joined
Sep 29, 2024
Posts
3
Reaction score
1
Location
Ohio
First Name
Garrett
Truck Year
1986
Truck Model
K20
Engine Size
5.7L 350
Thanks!
 

Frye442

Junior Member
Joined
Sep 29, 2024
Posts
3
Reaction score
1
Location
Ohio
First Name
Garrett
Truck Year
1986
Truck Model
K20
Engine Size
5.7L 350
Thanks!
 

animal

Super Moderator
Staff member
Super Moderator
Joined
Jul 30, 2010
Posts
5,626
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Location
Georgia
First Name
Lee
Truck Year
1986
Truck Model
c10 silverado
Engine Size
350ish
:welcome:
 

ali_c20

Full Access Member
Joined
Sep 20, 2016
Posts
1,349
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1,955
Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria.
 

WFO

Full Access Member
Joined
Jan 6, 2017
Posts
3,717
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Location
Texas Panhandle
First Name
Dan
Truck Year
1986
Truck Model
K20
Engine Size
350
Welcome from the Texas Panhandle.
 

legopnuematic

Licensed Junk Dealer
Supporting Member
Joined
Oct 27, 2016
Posts
2,622
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6,932
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.
 

Mr Clean

Super Moderator
Staff member
Super Moderator
Joined
Aug 18, 2010
Posts
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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:
 

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