Upper radiator hose help
TECH Fanatic
Joined: Sep 2008
Posts: 1,643
Likes: 526
I make a pattern for the radiator hoses out of card board and go down to Oreilly's and look thru the hoses they have hanging on the wall. Both top and bottom hoses. I had to cut some up to make them fit but no splices. I would try and eliminate all of the splices.
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When I got my hoses, I bend some wires for length and went to the parts store and they let me look through all of the hoses to get the right one. To fix your concern for good, buy a dual pass radiator so both hose ends are on the same side. Thats what I have in my 72 Cutlass
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Launching!
Joined: Jul 2016
Posts: 248
Likes: 100
Stock LS1/Ls6 hose "should" work. I just went and got 2 long bendy hoses from oriellys and used the one that fit best. Been working great. I also like the bendy hoses because theyre much more durable than the regular non bend hoses. Just my opinion though.
Almost all swaps end up being unique in multiple ways. Bend up a coat hanger, measure what you've got - head to the parts store and talk them into letting you wander around in the back in the hose section. That's what most of us do.
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,615
From: Central Cal.
For your ’67 GTO LS6 swap converting to FI, the stock radiator hose location often causes clearance issues. Most people go with LS swap-specific radiator hose kits or custom silicone hoses that allow flexible routing to avoid interference. Pre-formed LS swap hoses designed for classic GM cars (like Camaro or Firebird kits) usually work well with minimal modifications. Some also use adjustable hoses or hose adapters to connect the radiator and engine without hitting other components. Make sure the hoses don’t touch moving parts or hot surfaces, and checking LS swap forums can help you see what others with similar setups are running.