Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket
SKU: 3706407305

Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket

Sale price$102.56 Regular price$113.95
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Description

Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head GasketThe HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block. This Part Fits: Year Make Model Submodel 1949 1954 Jaguar XK120 Base 1952 1954 Jaguar XK120 M 1955 1957 Jaguar XK140 Base 1955 1957 Jaguar XK140 M 1955 1957 Jaguar XK140 MC 1958 1961 Jaguar XK150 Base 1958 1961 Jaguar XK150 S 1959 1966 Pontiac Bonneville Base 1959 1962 Pontiac Bonneville Custom

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

This Part Fits:

Year Make Model Submodel
1949-1954 Jaguar XK120 Base
1952-1954 Jaguar XK120 M
1955-1957 Jaguar XK140 Base
1955-1957 Jaguar XK140 M
1955-1957 Jaguar XK140 MC
1958-1961 Jaguar XK150 Base
1958-1961 Jaguar XK150 S
1959-1966 Pontiac Bonneville Base
1959-1962 Pontiac Bonneville Custom
1959-1966 Pontiac Bonneville Safari
1964-1966 Pontiac Catalina 2+2
1959-1966 Pontiac Catalina Base
1959-1966 Pontiac Catalina Safari
1962-1966 Pontiac Catalina Ventura
1962-1966 Pontiac Grand Prix Base
1964-1966 Pontiac GTO Base
1959-1966 Pontiac Star Chief Base
1966 Pontiac Star Chief Executive
1961,1963-1966 Pontiac Tempest Base
1964-1965 Pontiac Tempest Custom
1961 Pontiac Tempest LeMans
1961,1963-1966 Pontiac Tempest Safari
1960-1961 Pontiac Ventura Base
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SKU: 3706407305

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ashlynnk
San Leandro, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
A
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Abby B
West Palm Beach, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
E
Verified Purchase
EE
Battle Creek, US
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026
K
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Kate
West Palm Beach, US
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days. Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
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Reviewed in the United States on January 27, 2026
T
Verified Purchase
Tami
Carnegie, US
★★★★★ 5
Excellent quality!!!
Size: 10, Color: Ocean Breeze
Wow great quality!!! You get what you pay for that’s for sure!! The fabric is heavy-ish-indicative of quality fabric. Fit is spot on. I’m a barely size 10 (5’6” 160 lbs) and these shorts deliver!! The stretch is just perfect enough for comfort. Excited to wear these next summer!! Will watch for more sales so I can grab a couple more pairs. If you’re on the fence, get them!!
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Reviewed in the United States on December 4, 2025

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