- Molded silicone gaskets fit 1958-1986 Generation I small block Chevy
- Fits perimeter bolt style valve covers and cylinder heads only
- Made from a proprietary silicone compound for exceptional sealing
- Computer aided design and precision molding means a perfect fit and no leaks
- Able to be removed many times for valvetrain adjustment/servicing
- Compatible with all modern oils, including synthetic and semi-synthetic
Stop Valve Cover Oil Leaks with a High Quality Reusable Silicone Gasket
The Gen I small block Chevy was designed from the start in 1954 with a four bolt perimeter mounting pattern to the valve covers. The 265ci small block had a staggered bolt pattern on the upper two bolt holes but later around 1958 GM moved to a standardized bolt pattern for both top and bottom mounting holes. This pattern stayed the same through Gen I production of 283, 305, 327, 350, and 400 V8 engines and is used to this day on aftermarket cylinder heads and valve covers as well. For decades GM enthusiasts have battled how to keep their valve covers from leaking with only the use of four bolts, two top and two bottom, when other manufacturers used at least six and sometimes eight bolts to seal their valve covers.
Production and aftermarket cork and paper style SBC valve cover gaskets simply absorb the oil splashed off the rocker arms and eventually leak oil onto the exhaust, especially when using modern synthetic oils. When it comes time to change said gaskets, they are often a dried, hard mess on the cylinder hear and/or valve cover with a mushy, swollen center. These SBC valve cover gaskets are inexpensive, but they take a lot of time and labor to scrape and clean the surfaces just to install new cork or paper gaskets that will eventually leak again. Wash, rinse, repeat, curse up a storm. Valve cover bolt spreaders might help some, but it is still the lack of fasteners that really creates the issue. Now, with modern technology and materials, there is finally a gasket that will seal your Gen I SBC perimeter bolt valve covers, and it is even reusable!
Precision Molded for A Perfect Seal Time After Time
Using a proprietary silicone compound in CAD designed molds, the Gasket Innovations silicone valve cover gaskets from Alexander Racing Enterprises may very well be the last valve cover gasket you buy for your Gen I small block Chevy. This gasket positively seals perimeter bolt SBC valve covers and keeps the oil, be it conventional or synthetic, inside the engine. No more oily mess to clean up, no more burning oil smell from the exhaust, just a leak free SBC to enjoy. Simply install the small block Chevy valve cover gasket to your valve cover with a thin layer of high temperature silicone sealer and let the sealer cure. Then you’re ready to install your valve covers. Any time you need to service the valvetrain, the silicone valve cover gaskets stay with the valve covers as they are removed. Give the silicone gasket a quick wipe with a clean towel and bolt the valve covers back down when you’re done! These are simply the best SBC valve cover gaskets for a leak free and frustration free engine build.