SKU: 45724061674

Mr. Gasket Copper Seal Header Gaskets - 7171MRG

$66.50 $73.89
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Mr. Gasket Copper Seal Header Gaskets - 7171MRGOverview: Mr. Gasket CopperSEAL Header Gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications. Features: Manufactured from Dead Soft (solid) . 043" thick copper material . 051" embossment around each exhaust port to seal irregular surfaces. Total gasket

Overview:

Mr. Gasket CopperSEAL Header Gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications.

Features:

  • Manufactured from “Dead Soft” (solid) .043" thick copper material
  • .051" embossment around each exhaust port to seal irregular surfaces. Total gasket thickness .094"
  • Provides excellent sealing and durability
  • Conforms to and seals minor surface irregularities
  • For high performance street, drag race, oval track and turbocharged (extreme heat) applications

Application:

Year Make Model Submodel Engine Size
1975 - 1976 Pontiac Grand LeMans 400/6.6 V8
1975 - 1976 Pontiac Grand LeMans 350/5.7 V8
1975 - 1976 Pontiac Grand LeMans 455/7.5 V8
1967 - 1976 Pontiac Grand Prix 400/6.6 V8
1976 Pontiac Grand Prix 350/5.7 V8
1971 - 1976 Pontiac Grand Prix 455/7.5 V8
1972 - 1975 Pontiac Grandville 455/7.5 V8
1968 - 1976 Pontiac LeMans 400/6.6 V8
1968 - 1976 Pontiac LeMans 350/5.7 V8
1971 - 1976 Pontiac Grand Safari 400/6.6 V8
1971 - 1976 Pontiac Grand Safari 455/7.5 V8
1973 - 1975 Pontiac Grandville 400/6.6 V8
1970 - 1976 Pontiac LeMans 455/7.5 V8
1972 - 1976 Pontiac Ventura 350/5.7 V8
1965 - 1970 Pontiac Bonneville
1966 Pontiac Bonneville 389/6.4 V8
1967 - 1976 Pontiac Bonneville 400/6.6 V8
1967 Pontiac Bonneville 428/7 V8
1971 - 1976 Pontiac Bonneville 455/7.5 V8
1965 - 1969 Pontiac Catalina
1967 - 1976 Pontiac Catalina 400/6.6 V8
1967 Pontiac Catalina 428/7 V8
1970 - 1976 Pontiac Catalina 455/7.5 V8
1970 - 1976 Pontiac Catalina 350/5.7 V8
1966 Pontiac Bonneville 421/6.9 V8
1967 - 1976 Pontiac Firebird 400/6.6 V8
1971 - 1976 Pontiac Firebird 455/7.5 V8
1968 - 1976 Pontiac Firebird 350/5.7 V8
1967 Pontiac Firebird 326/5.3 V8
1973 - 1975 Pontiac Grand Am 400/6.6 V8
1973 - 1975 Pontiac Grand Am 350/5.7 V8
1973 - 1975 Pontiac Grand Am 455/7.5 V8
1966 Pontiac Grand Prix 421/6.9 V8
1965 - 1970 Pontiac Grand Prix
1968 - 1970 Pontiac Tempest 400/6.6 V8
1968 - 1970 Pontiac Executive 400/6.6 V8
1968 - 1969 Pontiac Executive 428/7 V8
1968 - 1970 Pontiac Tempest 350/5.7 V8
1970 Pontiac Executive 455/7.5 V8
1965 - 1970 Pontiac GTO
1966 Pontiac Grand Prix 389/6.4 V8
1967 Pontiac Grand Prix 428/7 V8
1971 - 1973 Pontiac GTO 400/6.6 V8
1971 - 1973 Pontiac GTO 455/7.5 V8
1965 - 1967 Pontiac LeMans 326/5.3 V8
1971 Pontiac Grandville
1966 Pontiac Star Chief 421/6.9 V8
1965 Pontiac Star Chief
1966 Pontiac Star Chief 389/6.4 V8
1965 - 1967 Pontiac Tempest 326/5.3 V8
1967 Pontiac Executive

Specs:

Brand Mr. Gasket
Collector Gaskets Included No
Emission Code 5
Engine Pontiac V8
Gasket Line Copper-Seal
Material Copper
Port Shape D-Port
Port Size 1.55" x 1.94"
Product Type Header Gaskets
Thickness .094"
Warning California Proposition 65
Warranty Limited 90 Day Warranty
Weight 1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 45724061674

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4.8 ★★★★★
Based on 12 reviews
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Product Reviews
V
Verified Purchase
VGood
Draper, US
★★★★★ 5
Really stylish
Size: Medium, Color: Black
Looks great. My son wore to a concert for Valentines day. His gf wore a copper dress...looked so good together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
C
Verified Purchase
CRUZAN1
Bozeman, US
★★★★★ 1
Sizing issues
Size: 3X-Large, Color: Blue-square Plaid
Sent it back. Runs super small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
J
Verified Purchase
Johan Metz
Lowell, US
★★★★★ 5
6' 1" 225 lbs (formerly;-) athletic build
Size: XX-Large, Color: Burgundy, Size: XX-Large, Color: Burgundy
So I’m amending my review because I’ve now bought the black (as well as the red) suit. The suit I got this time has a paper XXL large label; I want to remember the red suit having the same but now I honestly cannot remember. It came just in time for Halloween and fit almost perfectly so I feel I didn’t pay enough attention to detail. And now I don’t know what’s what? My red pants (first purchase) measure about a 36” waist; my black pants (second purchase) measure about a 42” waist. The bust on my red suit measures about 46” and the bust on my black suit measures about 48”. Having said all that, here is my original review, which I believe is about a XL (not an XXL—which I believe would probably fit a 6’4” 260lb person); I’m not changing my words, just know from here forward XXL most likely refers to an XL (I’ll update my review when I get my next suit): I bought a XXL and it fits almost perfectly. I have a 46” bust and 36” waist and normally wear a tailored 42R and 36” waist x 30” inseam pants (so I normally can’t buy a suit off the rack where the pants aren’t a parachute). The jacket could be taken in maybe a half an inch but this is for a costume; as I mentioned: I wear a 46L and be sleeves could similarly be let out a smidgen as well; the pants couldn’t have fit much better considering the mixed reviews and EXTREMELY VAGUE sizing chart—the waist could be taken in half an inch. The material is a bit thin as others mentioned but on the whole it was a great purchase and I won’t have to do anything to utilize it for my costume.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2020
B
Verified Purchase
Brett T.
Boise, US
★★★★★ 5
Incredible Deal! I bought 2 full suits and absolutely love them!
Size: Medium, Color: Grey
Great looking suit! True to the American Size Chart! I got a lot of compliments the very first day of wearing it! I feel lucky, the Medium Fits like it was tailored! 5’11 (6’ with shoes on, ladies) 190lb. Stocky build. The stretchy waist band is a game changer fellas! Love that! Just like in the video they’re very fun to dance in! The Medium is a lil snug in areas for me but I am currently dieting etc, so if you don’t wanna worry I’m sure the next size up for you fits just as good and will have more breathing room for your arm muscles, thighs, mid section etc as the entire material itself is not stretchy, just the waistband which is incredible!. Overall these are a GREAT score at an amazing price! Perfect for that special occasion or for upgraded business attire! Great Quality! Great Value! and You’ll feel great about yourself in these when you find your faves!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
C
Verified Purchase
Chris
Alexandria, US
★★★★★ 1
Packaged in aWrinkled Ball and Bad Sizing
Size: X-Large, Color: Black
I've tried 3 of these suits, 2 different sizes, and each one fits differently. Each one has also been crinkled up and wrinkled each time I opened it. I wouldn't be surprised if it was returned and sent right back out without inspection. Other reviews noted order a size up. I have a size 34 waist and normally order Large, so I ordered an XL. XL barely can be zippered up. So I returned it. Ordered and XXL. XXL is about 6 inches way too big and took 2 weeks to arrive. So I order and XL again, and once again, way too small, but still bigger than the first.. There is no tag on the pants, only the jacket, so I think someone screwed up the sizing or matching the jacket with the pants. Total waste of time with 3 returns. Label your products right and get your sizing chart right. There should not be an 8 inch difference between XL and XXL. Got another trip out to UPS, thanks...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2021

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