Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
XDP Heavy Duty High Boost Valve Spring Set 1998.5-2018 Dodge 5.9L/6...
$399.95
Unit price
/
Unavailable
Control the valvetrain in your modified 1998.5-2022 Dodge 5.9L Cummins with the XDP HD High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels.
Common upgrades like aftermarket tuning and fueling and turbo upgrades can cause valve float that results in severe engine damage. Intake valves can also be blown open from added boost levels and exhaust drive pressure which allows reversion. Reversion is when exhaust gasses enter cylinder on the intake stroke, another condition that can hurt your power potential.
The XD390 Valve Spring Set is ideal for the enthusiast that is running an aftermarket camshaft, upgraded or compound turbochargers, and fueling upgrades. These springs are ready to install using your factory retainers and locks. The XD390 Valve Springs have a reduced OD and will fit all 1998.5-2002 cylinder heads regardless of the casting inconsistencies.
Features:
- Performance Valve Spring Kit
- Essential For Elevated Boost Levels (50 and up lbs)
Specifications:
- Installed Height: 1.340 inch
- Installed Pressure: 108lbs
- 192lbs at .920 inch
- Coil Bind: .800 inch
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
