Power steering line standard to metric

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.

Skittles

Junior Member
Joined
Aug 10, 2025
Posts
7
Reaction score
2
Location
12185
First Name
Shayna
Truck Year
1987
Truck Model
C20
Engine Size
350 5.7
Hi all,
We have a 1987 Chevy R20 with a new Blue print engine and power steering pump. We need to replace the power steering line and we are running into a problem. The truck side is metric and the power steering pump side is standard. Brought it to Napa and they aren't able to make up a line and we haven't been able to find much through our research. Would rather keep the pump on that we have since we have the serpentine system all set. Worry if we swap out the pump it will mess with the pulley system.
Any insight would be great.
 

Broken85

Supporting Member
Supporting Member
Joined
Jan 14, 2024
Posts
310
Reaction score
449
Location
Cumberland, NJ
First Name
A
Truck Year
1985
Truck Model
K10
Engine Size
350
I went round and round with this too when I did my Blueprint. I ended up switching the PS lines to 6AN braided stainless that I had left over from the fuel system. These should be the adapters you need. Full disclosure; there was a couple of rounds of “buy-and-return” until I got it right. I “think” these are the right ones. You will also need a 6AN barb hose end too.



 

bucket

Super Moderator
Staff member
Moderator
Joined
Aug 3, 2010
Posts
35,425
Reaction score
44,732
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Hi all,
We have a 1987 Chevy R20 with a new Blue print engine and power steering pump. We need to replace the power steering line and we are running into a problem. The truck side is metric and the power steering pump side is standard. Brought it to Napa and they aren't able to make up a line and we haven't been able to find much through our research. Would rather keep the pump on that we have since we have the serpentine system all set. Worry if we swap out the pump it will mess with the pulley system.
Any insight would be great.

Where did your original pump go? Just use the metric fitting in the pump that came with the engine.

There's also line adapters available for the steering box.
 

xm20k

Runs on 93 octane, caffeine, and spite
Supporting Member
Joined
May 26, 2025
Posts
1,195
Reaction score
3,108
Location
Girard, Ohio
First Name
David
Truck Year
78
Truck Model
c10
Engine Size
388
Last edited:

Skittles

Junior Member
Joined
Aug 10, 2025
Posts
7
Reaction score
2
Location
12185
First Name
Shayna
Truck Year
1987
Truck Model
C20
Engine Size
350 5.7
Super helpful, thank you!
 

ss454elco

Full Access Member
Joined
Apr 22, 2024
Posts
35
Reaction score
49
Location
Pennsylvania
First Name
Rod
Truck Year
1984
Truck Model
K10
Engine Size
350
If you can't find the individual fittings/adapters, another option wouI'd be a hose kit for installing hydra boost brakes. I swapped a 454 into my 84 K10 and installed hydra boost because of the cam. Kit came with hoses, fittings and adapters. Had fittings that weren't needed for my application.
 

Latest posts

Forum statistics

Threads
48,666
Posts
1,074,179
Members
43,338
Latest member
jw23655
Top