Speedway Engine Valve Spring Rate Tester Tool

Accurate Spring Testing: Measures valve spring pressure quickly and consistently, allowing you to verify spring rate and performance before final assembly, Adjustable Installed Height: Set the spring height once, then test multiple valve springs efficiently without repeated adjustments, Heavy-Duty Capacity: Handles valve springs up to 600 lb, making it suitable for high-performance and competition engine builds, Billet Aluminum Design: Precision-machined billet aluminum construction with a black anodized finish for durability and strength, Single or Dual Spring Use: Designed to check double valve springs with retainers installed or single springs without, providing versatile testing capability Speedway Engine Valve Spring Rate Tester Tool Sku # 91681150 Mfr. Part # 91681150 Condition New Brand Speedway Motors Sold Each Details Black anodized aluminum. Most convenient Valve Spring Tester on the market. Set spring height once and test as many springs as you want, with little effort. Handles up to 600 lb. springs. Specs Material Type Billet Aluminum Finish Anodized Black Sold in Quantity Each MFG. Part # 91681150 Reviews Just what I needed Rated by Whipper on September 20, 2025

Summary: A great product for the tool box when up-grading or replacing springs

Yes, I recommend this product.

I'll be buying more again. Rated by MrP on November 21, 2024

Summary: I am teaching students about spring pressure for aircraft cylinders

Yes, I recommend this product.

Accurate Readings Rated by Tom W. on November 07, 2023

Summary: I checked it with a Comp Cams calibration spring. It read the same rate as the calibration spring said that it should. Of course, the gauge only has 5 lb increments, but judging by the distance between the 5 lb increments, it read the same as the calibration spring. I then checked it with a brand new Brodix spring with 240 seat pressure at 1.950. It read 240. I had to use the retainer and add the width of the retainer because it was a dual spring. I found the best way to get the added width was to place the retainer on a height mike and measure the overall distance with a digital caliper. Then I used the digital caliper to measure the inside distance on the pressure tester. It is notched, so that you can get the digital caliper square and flat to take an accurate measurement.

Yes, I recommend this product.

Ok, but hard to stay centered Rated by Kyle on July 11, 2016

Summary: Not bad overall. But the base that measures the pressure moves. It doesn't stay centered so it is hard ti get an accurate measurement. One side will read a different distance than the other.... If I had to do it iver, I would not buy it again. I have seen a few that were only $100 more then this one that look much better. This unit is very hard to use .. Kyle

No, I would not recommend this product.

Terrific tool !!!!! Rated by Tom in Michigan on December 20, 2015

Summary: A great and inexpensive tool for checking valve springs.

Yes, I recommend this product.

Related Items / Suggested Parts LSM Racing Products PC-100 Hydraulic Valve Spring Checker Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.