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Description
Header Gaskets-Alum-Layered-396-454 Chevrolet Big Block Mark IV 1965-90 99153FLTOverview: FLOWTECH REAL SEAL header and collector gaskets are a revolutionary break through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do it once solution that will not burn or blow out. REAL SEAL gaskets will work when an o ringed gasket won't because the "Dead Soft" aluminum conforms to create a leak proof seal. REAL SEALS can also be easily trimmed for port matching and you can use
Overview:
FLOWTECH REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do-it-once solution that will not burn or blow out. REAL-SEAL gaskets will work when an o-ringed gasket won't because the "Dead Soft" aluminum conforms to create a leak-proof seal. REAL-SEALS can also be easily trimmed for port-matching and
you can use them over and over again.
Features:
- Multi -Layer "Dead Soft" aluminum conforms to create a leak-proof seal.Water/Weather Resistant
- Re-Useable
- Will Not Burn Or Blow Out
- Suitable For Port-Matching
- Made In USA
Application:
- 1968-1986 Chevrolet C20 Suburban
- 1975-1990 Chevrolet G30
- 1968-1980 Chevrolet C10 Suburban
- 1975-1986 Chevrolet C30
- 1975-1986 Chevrolet C20
- 1979-1990 GMC C3500
- 1979-1990 GMC K3500
- 1966-1976 Chevrolet Impala
- 1966-1976 Chevrolet Caprice
- 1977-1986 Chevrolet K30
- 1966-1975 Chevrolet Bel Air
- 1966-1974 Chevrolet Corvette
- 1966-1973 Chevrolet Chevelle
- 1979-1986 GMC C2500
- 1979-1986 GMC C2500 Suburban
- 1969-1975 Chevrolet El Camino
- 1968-1974 Chevrolet K10 Pickup
- 1968-1974 Chevrolet K20 Pickup
- 1968-1974 Chevrolet K30 Pickup
- 1968-1974 GMC C15/C1500 Pickup
- 1968-1974 GMC C15/C1500 Suburban
- 1968-1974 GMC C25/C2500 Pickup
- 1968-1974 GMC C25/C2500 Suburban
- 1968-1974 GMC C35/C3500 Pickup
- 1968-1974 GMC K15/K1500 Suburban
- 1968-1974 GMC K25/K2500 Pickup
- 1968-1974 GMC K25/K2500 Suburban
- 1968-1974 GMC K35/K3500 Pickup
- 1966-1972 Chevrolet Biscayne
- 1968-1974 Chevrolet C10 Pickup
- 1968-1974 Chevrolet C20 Pickup
- 1968-1974 Chevrolet C30 Pickup
- 1970-1975 Chevrolet Monte Carlo
- 1975-1980 Chevrolet C10
- 1976-1980 Chevrolet K10
- 1968-1972 Chevrolet Camaro
- 1968-1972 Chevrolet K10 Suburban
- 1971-1975 GMC Sprint
- 1973-1976 GMC Jimmy
- 1975-1978 GMC C15
- 1975-1978 GMC C15 Suburban
- 1975-1978 GMC C25
- 1975-1978 GMC C25 Suburban
- 1975-1978 GMC C35
- 1987-1990 GMC R2500 Suburban
- 1987-1990 GMC R3500
- 1987-1990 GMC V3500
- 1976-1978 Chevrolet K20
- 1988-1990 Chevrolet K3500
- 1973-1975 Chevrolet Laguna
- 1973-1975 Chevrolet Malibu
- 1970-1972 Chevrolet Kingswood
- 1970-1972 Chevrolet Townsman
- 1988-1990 Chevrolet C3500
- 1976-1978 Chevrolet K5 Blazer
- 1988-1990 GMC G3500
- 1976-1978 GMC K25
- 1987-1989 GMC R2500
- 1973-1974 Chevrolet G20 Van
- 1973-1974 Chevrolet G30 Van
- 1969-1970 Chevrolet Nova
- 1968-1969 GMC K15/K1500 Pickup
- 1987-1988 Chevrolet R20
- 1987-1988 Chevrolet R20 Suburban
- 1989-1990 Chevrolet R2500 Suburban
- 1987-1988 Chevrolet R30
- 1989-1990 Chevrolet R3500
- 1987-1988 Chevrolet V30
- 1989-1990 Chevrolet V3500
- 1979-1980 GMC C1500
- 1979-1980 GMC C1500 Suburban
- 1975-1976 GMC G25
- 1976-1977 GMC K25 Suburban
- 1973 Chevrolet Blazer
- 1972 Chevrolet Brookwood
- 1976 Chevrolet G20
- 1968 Chevrolet Chevy II
- 1990 Chevrolet C1500
- 1989 Chevrolet R2500
- 1976 GMC G35
- 1976 GMC K15
- 1980 GMC K1500
Specs:
| Brand | Flowtech |
|---|---|
| Collector Gaskets Included | No |
| Emission Code | 5 |
| Engine | Big Block Chevy |
| Gasket Line | MLS |
| Material | Aluminum |
| Port Shape | Round |
| Port Size | 2.15" |
| Product Type | Header Gaskets |
| Thickness | .125" |
| Type of Component | Exhaust Gaskets |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
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Product Reviews
★★★★★ 5
Sun Bum kit a saver!!
Style: Mineral
Great little bag full of sunscreen for my grandson. Glad we had it to take it everywhere with us. A little pricey but he needs it so instead of taking bunches of bottles we had this.
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Reviewed in the United States on May 21, 2026
★★★★★ 4
Sunscreen is great, I would t recommend the chapstick
Style: Original
Sun Bum is hands down the best sunscreen I’ve ever used. It smells incredible, like a tropical vacation with that perfect coconut scent. It goes on smoothly, doesn’t leave you feeling sticky or greasy, and actually works! As long as I reapply every few hours, I don’t get burned, which is more than I can say for most other sunscreens I’ve tried.
The face stick is good, goes on easily, but is a little greasy feeling.
I do not like the chapstick, I can’t keep the taste of it out of my mouth and I feel like you have to put it on again and again.
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Reviewed in the United States on July 15, 2025
★★★★★ 5
Perfect!
Style: Original
Perfect for that carry on to a sunny place!!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Great Mineral Facial Sunscreen
Size: 1.7 Fl Oz (Pack of 1)
This is the best mineral facial sunscreen I’ve used. It comes out as a thin lotion that spreads easily. I have used two other brands and considered a brand that was expensive before trying this. I liked baby bum mineral 50 sunscreen lotion for the body and decided to give this a try. I like sun bum products. They tend to make effective products that are not too expensive. The zinc oxide mineral facial sunscreen I was using slightly irritated my skin and felt heavy like a mask after applying. It left a greasy residue on my face. This sun bum facial mineral sunscreen is non-irritating and feels very light like a chemical-based facial sunscreen. It leaves no residue on the skin. I prefer zinc oxide mineral sunscreen because it’s natural, safe and effective. Some zinc oxide mineral sunscreens put a white caste on the skin after application. The titanium dioxide and zinc oxide blended mineral sunscreens are worse due to the titanium dioxide. Titanium dioxide is a bright-white powdered substance, and I have not experienced any product with this ingredient that doesn’t appear white on the skin and cannot be blended. This sun bum zinc oxide mineral facial sunscreen has no white caste. Like another reviewer, I also hope that sun bum continues to make this facial mineral sunscreen indefinitely. It’s the best I’ve ever tried and at an excellent price point. If you like mineral sunscreens due to the health and environmental concerns with chemical-based sunscreens, try this before trying more expensive mineral facial sunscreens.
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Reviewed in the United States on May 12, 2025
★★★★★ 5
Great product. No white cast
Size: 1.7 Fl Oz (Pack of 1)
This is a great everyday face sunscreen. It doesn’t leave a white cast. It’s not greasy. It leaves a nice dewy finish. Strongly recommend.
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Reviewed in the United States on April 6, 2026