Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID

Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID

Marsoni

M251S

$118.41

Get it in 3 business days with 1 day shipping. Friday, May 29

Manley Street Master 16pc Valve Springs - 1.437 OD/.720 IDThe Manley Street Master series delivers upgraded valve springs and components designed specifically for street driven performance builds. Made from high tensile chrome silicon steel with precision shot peening and heat treatment for long life, Street Master parts offer improved valve control, reduced stress, and dependable performance over factory components. Ideal for naturally aspirated and mildly modified engines, these components give you

Easy Shipping

Quick Dispatch:

Your Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID ships.

Need Help?
Questions about Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Manley Street Master 16pc Valve Springs - 1.437 OD/.720 ID in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Why not make your (overpriced) fuel work for you? If you appreciate your internal combustion engine, and want to help avoid costly repairs or maintenance to your fuel injector system, you can! To be honest the quality of fuel is often questionable (I’m looking right at you, ethanol). Modern fuel injection systems are squeezed for every iota of fuel economy and performance. It makes sense to be a little proactive with the preventative maintenance, it’s just good sense. Adding Jectron to your fuel is a smart, and economical measure that you can take, to keep your injection system running as designed. It won’t damage your emissions components, it won’t harm your fuel systems more delicate parts (O-rings, plastic tubing, filters, etc.). There are plenty of great options out there, such as Chevron’s Techron, and a handful of other reputable products. I used to be a very strong advocate of Techron (it’s still my backup choice). However, after witnessing Jectron solve a battery of problems on a variety of vehicles, I’m a convert.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 20, 2023

Verified Purchase

George Dordoni

Lexington, US

★★★★★ 5

Quick and Competent!

Fast service. Exactly as ordered.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 16, 2025

Verified Purchase

Guillo