LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal

LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal

Marsoni

M251S

$149.50

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

LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat SealDual Spring Kit for Factory GM Casting Cylinder. This kit is for a factory casting LS1, LS2, LS3, L92 with an OE style valve guide. Designed for 0. 500 valve guide utilizing the factory 8mm valve and valve locks. Specs: Rated Valve Lift 0. 660 inches Installed Height 1. 800 @ 166 lbs Spring Rate: 403# in Solid Height 1. 015 Spring OD 1. 310" Spring ID 0. 680" Kit includes: Dual Valve Springs Titanium Retainers Integrated Spring Seat with Valve Stem

Easy Shipping

Quick Dispatch:

Your LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal 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 LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal ships.

Need Help?
Questions about LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal, 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 LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder Head - Integrated Seat Seal 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

I ordered these black Cole Haan penny loafers for casual wear with jeans, khakies, and even business casual with slacks and a jacket. They've always worked perfectly for these uses. The Cole Haan version is the most versatile and still meets my sophisticated look criteria. I wear a 9 1/2 M with almost all other shoes. I have found Cole Haan to run slightly wider and slightly shorter. This fit will work with thin and no socks and a little loose in width. . I'd likely order a 10 N next time. I tend to forget this but it runs consistent with me for Cole Haan. 5 stars for the shoe and service. My bad on the slightly off fit.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 8, 2025

Verified Purchase

Hugh62

Lake Worth, US

★★★★★ 1

Poor quality control - maybe outlet store leftovers

Size: 11.5, Color: Burgundy Polished Full Grain

The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 21, 2025

Verified Purchase

Fabric Crazy

Phoenix, US

★★★★★ 5

Really nice shoes

Size: 9, Color: Black Polished Full Grain

My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 3, 2026

Verified Purchase

tjw

Draper, US

★★★★★ 3

Way too narrow

Size: 9.5 Wide, Color: Burgundy Polished Full Grain

I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 12, 2026