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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
Great Toner!
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
I have both rosacea and acne. I use this to control my acne breakouts, and it never makes my rosacea flare up. It’s really good toner & I highly recommend it. It has never made me have any sort of rash/breakout/reaction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Works
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
I've had horrible acne issues for the past 2 years since having my daughter. I've tried everything to get rid of it and nothing was working until I tried this stuff! Within 2 days the redness was significantly reduced and I've been having far less issues with my skin. It did cause the skin to purge in the areas I get the most blemishes but that is normal according to Google
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Thayers toner review
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1), Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
This Thayers Blemish Clearing toner is fantastic. It does not have an offensive smell, nor is it abrasive to the skin. Consistent use will see your skin's condition improve.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 4
Pleasant, light aroma, gently affects the skin.
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
It has a pleasant, light scent and feels gentle on the skin, helping to keep it fresh and clear, but I recommend following up with a moisturizer to prevent any dryness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Clear Skin Staple—Gentle Yet Effective and Pairs Perfectly with My Favorite Facial Pads
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
This toner is my daily go-to for keeping my face in check. It’s gentle on my skin but packs a punch when it comes to keeping my sensitive skin clear and fresh. I use it every morning and night, and my skin has never looked more balanced. It doesn’t sting or dry me out, and it layers beautifully with my other products. Total game changer.
I use Thayers Blemish Clearing Toner with the ForPro XL Facial Pads and the combo is perfection. The toner glides on smoothly, and the pads help distribute it evenly without soaking up too much product. My skin feels clean, refreshed, and noticeably clearer. If you’re looking for a refreshing, non-harsh toner to add to your routine that’s simple and effective, this duo is it!
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Reviewed in the United States on November 7, 2025