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LS Coolant Crossover Steam Vent Kit AN4 Fuel Brake Line 4 Corner Complete Steam Port Kit for 6.0 5.3 LS1 LS2 LS3 LS6 LS7 LS9 LSX

Free shipping on orders over $29.99

$40.99

$ 18 .99 $18.99

In Stock

About this item

  • LS Stainless Steam Vent Kit: The AN4 fuel brake line pipe is made of high quality stainless steel,the ls steam vent fittings are made of high quality aluminum.The fitting is designed with Tapered thread and not easy to leak,you can also use some tap onto the thread of the fitting.
  • APPLICATION: The LS 4 port steam vent kit is universal for LS1, LS2, LS3, LS6, LS7, LS9, LSX engines.Please check the size of the LS steam vent line kit before purchase.
  • PERFORMANCE: The PQY LS coolant crossover steam vent kit can allow the radiator cap to release pressure as intended thereby removing the steam/pressure from the system.Our PQY ls steam port kit is a great replacement for 5.3 ls steam vent kit and 6.0 ls steam port kit.
  • PACKAGE INCLUDES: 5x Center manifold,1x Corner manifold ports machines,4x Coupler,9x End fittings,4x Lag spike.
  • INSTALLATION TIP: Please install the ls coolant crossover kit when the engine is not hot as it can become a safety hazard to handle hot fluids.Does not have clearance under the intake to run a proper traditional hard line steam kit coolant crossover setup.



Product Description

OFK15
OFK15-1
OFK15-2
OFK15-3
OFK15-4
OFK15-4

rafael martinez jr
2025-08-26 17:57:38
looks good on the motor
Paul
2025-08-06 15:26:09
Nice product. Would buy again. Would recommend. Did come missing straight line fitting for vent line. Not rocket science to find.
Nick Panatsas
2025-07-29 20:51:32
Save your money buy something else. O-rings did not come with the kit. It was missing parts. Complete waste of money.
PianoGal
2025-06-02 11:05:51
Does not work on LS6 with a stock manifold keeping it for next engine that has is taller
kurt martiny
2025-04-22 15:09:34
I'll cross my fingers and hope it doesn't leak..I'm afraid to tighten everything to max
Andy Loyd
2025-03-18 17:47:31
The steam line kit cleans up a necessary operation for the top of my LS engine. Very nice and simple to install.
Blake Zurawski
2024-12-21 11:57:17
You need to take your time to figure out which part goes where to get it to look good as there was no directions or indication on what tube to use for what side.I was also missing a fitting to connect the middle tube. I ended up getting a fitting locally and just running a longer rubber house.I can get around the missing directions. When doing a swap, "making it work" is the name of the game, however, not having all of the pieces is a major set back.Quality of parts received was very good. Used tread sealant on the standard side of the fittings. No sealant on the AN fittings which resulted in no leaks.
Eric R.
2024-12-12 20:44:33
Unlike some of the other cheap knockoff steam port kits, this one actually fits decent.That said, idk what you’re supposed to do with the outlet line, it’s flared for 4an on one side with a regular bubble flare on the other side with no tube nut or ferrule. I threw it away and used an extra 6an pipe thread adapter to run a soft braided line to the radiator.For $40, I really can’t complain, but be prepared, as with most cheap knockoff parts, to do some modifications.
Ben Misko
2024-11-15 19:01:26
Fairly nice kit and hella cheaper than going with motion raceworks kit. If you do decide to get one of these make sure to get the proper seals (Dorman 56390) and also get a 1/4" compression to -4an fitting for the steam line. Also made sure to throw out the Allen head bolts and get some m6 x 1.00 30mm bolts to snug the fittings down to the heads. The Allen head bolts strip out way too easy
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