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

Marsoni M251S
Sale price$174.50
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LS 660 Lift Dual Valve Spring Kit - Factory LS Casting Cylinder HeadDual 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 Chrome Moly Spring Seats Valve Stem Seals
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4.8 ★★★★★
Based on 1201 reviews
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K
Verified Purchase
Kozok
Omaha, US
★★★★★ 5
can't beat the original...
Size: 26, Color: Truest Blue
Love them. 28 waist, 5' 6" bought size 26 and fit great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
K
Verified Purchase
kb
Bozeman, US
★★★★★ 5
Great for layering or wearing on its own!
I’m 5’6” and ordered the small — it fits perfectly! The color is exactly as shown in the pictures, a beautiful beige that goes with everything. The fabric is incredibly soft and comfortable, making it great for layering or wearing on its own. I’m really happy with this purchase and would definitely recommend it!
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Reviewed in the United States on November 1, 2025
C
Verified Purchase
CC7
Birmingham, US
★★★★★ 3
Nice but not great
Fits true to size. I ordered a small and it was a great fit. Could be a bit softer. Loved the style. Not too thin or not heavy, nice weight. This quality of the sweater was nice, however the buttons broke apart as I was styling the cardigan. Not happy to have to sew on small buttons to fit the small holes. It’s nice but I had to put too much effort into wearing it.
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Reviewed in the United States on February 11, 2026
K
Verified Purchase
KINDLE
Phoenix, US
★★★★★ 4
Great product
Color: Black, Size: Medium
Love it. Fit is great. The only issue is pilling
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Reviewed in the United States on April 22, 2026
B
Verified Purchase
brooke arnold
Lowell, US
★★★★★ 1
not as pictured
Color: Light Grey, Size: Small
This is very boxy and looks nothing like the photo. Sad
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Reviewed in the United States on December 4, 2025

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