Rad hoses for LQ4 swap
#2
TECH Senior Member
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
A search should turn up a thread concerning this exact question. I remember it from the past year or so.
The following users liked this post:
Chevy Guy (08-20-2021)
#3
TECH Enthusiast
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The OEM Firebird radiator won't have the small nipple for the coolant crossover (steam vent) hose. I just drilled and tapped the pump to return the coolant to the system using a "R" size drill bit and a 1/8" NPT tap along with a 1/4" barbed 1/8th" NPT nipple. You can cut the upper radiator hose in half and run an adapter with the nipple but it's not very aesthetic with the extra hose clamps and steam hose right up top where eyes first hit popping the hood.
Attachment 712348
Pretty much hidden with the intake tube installed
![Rad hoses for LQ4 swap-pfajgz3.jpg](https://ls1tech.com/forums/attachments/conversions-swaps/712347d1683230295t-rad-hoses-lq4-swap-pfajgz3.jpg)
Attachment 712348
Pretty much hidden with the intake tube installed
![Rad hoses for LQ4 swap-pfajgz3.jpg](https://ls1tech.com/forums/attachments/conversions-swaps/712347d1683230295t-rad-hoses-lq4-swap-pfajgz3.jpg)
#4
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Upper hose should be a 99-13 Silverado with. LS engine Lower might work too