My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Manley 23645-16 Performance Valve Spring

Manufacturer

Picture for manufacturer Manley

Part Number

23645-16
5 reviews
Sale Price

$75.42

4 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 23645-16 is a high-performance valve spring engineered for demanding racing and performance engine applications. Manley Performance valve springs are precision-manufactured from premium chrome silicon alloy steel and undergo rigorous heat treatment processes to ensure consistent spring rates and exceptional durability under extreme conditions.

Key Features:

  • Chrome silicon alloy steel construction for superior strength and fatigue resistance
  • Precision wound to exacting tolerances for consistent spring pressure
  • Heat treated and shot peened for enhanced durability
  • Designed to prevent valve float at high RPM
  • Manufactured to OEM or better specifications
  • Compatible with performance camshaft upgrades

Manley valve springs are trusted by professional engine builders and racing teams worldwide. Each spring is manufactured in the USA and undergoes stringent quality control testing to ensure reliable performance in high-stress racing environments.

Products specifications

Inside Diameter of Inner Spring (in)

0.700 in.

Lock Style

7 degree

Number of Springs Per Valve

Dual

Outside Diameter of Middle Spring (in)

1.050 in.

Outside Diameter of Outer Spring (in)

1.550 in.

Quantity

Sold as a set of 16.

Retainer Material

Steel

Retainer Style

Standard

Valve Spring Style

Standard

Valve Stem Diameter

11/32 in.

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

Great prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

Best price on the net. Shipping appears to be fast (just ordered product and recieved a tracking number) Smooth transaction.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy