What radiator hoses to use ?
 

Good morning all, I am at the point of adding fluids in anticipation of firing up my project very soon. I have a 2004 GTO LS-1 engine (all stock) and it is installed in a 69 Firebird. My new aluminum radiator has upper and lower connections on passenger side for ease of routing of hoses. The factory hoses are short. Are there hose part numbers that everyone is using, can someone please provide some guidance. Thank you.

Tim john---

The search function is your friend:

https://lateral-g.net/forums/show...=Radiator+hose

There are many more threads...

Don

Thank you Don, I found out with the manufacturer of my radiator that the stock hoses from an LS based Camaro is/should be the correct fit. The Australian built GTO factory hoses are short so hopefully the new information will get me where I need to go.

Tim john---

Really? Are your connections both on the passenger side? If they are the numbers in the thread I posted are likely the ones you need...

Don

Yes Don, factory GTO hoses are short. Yes as well with both connections on the passenger side of the radiator. I called Summit and they are sending me an upper and lower radiator hose for US built LS-1 based Firebird/Camaro. They should be here in a couple days and I will report back with the results. I also ordered the "Power Grip" clamps (shrink tubing) instead of worm gear hose clamps, going to give them a try too.

Tim john---