![]() PN1886 1986-97 thick front seal, one 1pc rear main seal GM bowtie short deck block PN1882 Thick front seal straight side rails side rails trimmed for strokers PN1885 1957-74 thin front seal LH dipstick PN1880 1975-79 thick front seal LH dipstick side rails trimmed for strokers PN1881 1980-85 thick front seal RH dipstick side rails trimmed for strokers Aftermarket and factory timing covers can vary, so it is best to measure your timing cover width before buying a replacement oil pan gasket.įelPro One Piece Oil Pan Gasket Part Numbers Notice the difference between this photo and photo C, the oil pan will now bolt-on and properly seal. You can see how the front seal fits down inside the timing cover grove perfectly. In this photo we installed Fel-pro’s premium three-piece gasket that is intended for a thin-style timing cover. Trying to bolt the oil pan on could damage the gasket and cause leaks. If you look closely, the gasket is too thick to fit down inside the timing cover groove, which won’t allow the oil pan to bolt up. In this photo we installed a one-piece gasket similar to Superseal’s 910-10223, which is intended for a thick-style timing cover. Notice the width of the groove where the oil pan gasket should seat inside of. In this photo we installed Speedway’s billet timing cover onto a small block Chevy 350, which is intended for a thin-style oil pan gasket. The images on the right compare the problem found between a thick and thin gasket. Fel-pro specifies a thick gasket at 3/8-inch, and a thin gasket at 1/4-inch. Some timing covers (like Speedway's 910-11040) have a thin grove, and others are thick. On a small block Chevy engine, some oil pan gaskets are a bit thicker than others (about 1/8-inch) and this can cause a problem where the gasket seals inside the timing cover grove. This RTV is not to be used on the gasket face, but rather where the bottom corners of the gasket meet the end seals to fill the gap.Ever ran into the headache of an oil pan gasket that doesn’t quite fit your timing cover? Well, like every problem, we have a solution or a tip rather, that will save you the extra run to the parts house. Intake manifold gasket sets may contain a small tube of RTV. Only apply the sealant in the manner and locations directed. In cases where a sealant is needed for installation of a Fel-Pro gasket, a FIT® Form will be included, along with the proper sealant.Also, RTV can extrude out when the gasket is compressed, and it could end up in an oil or coolant passage and restrict or block flow. Sealants can add thickness which creates uneven clamping force since the gasket will not be able to seat properly. RTV can act as a lubricant and cause the rubber gasket to slip out of place and split, creating an opportunity for leaks. The sealer can chemically attack the rubber sealing beads and degrade them. ![]() Using RTV on the gaskets with Fel-Pro's propreitary rubber or silicone sealing beads causes multiple issues: To ensure these technologies work in the way they were designed to, these intake manifold gaskets must be installed on a clean, dry surface with no additional sealants used. Fel-Pro's proprietary rubber resists all fluids and features multiple sealing beads that provide additional sealing and compensate for rough corroded gasket flange surfaces. They have an aluminized steel carrier that resists corrosion and is not susceptible to degradation from exposure to fuels, oils and coolants. ![]() PermaDryPlus intake manifold gaskets are designed to provide a permanent seal. Intake manifold gaskets have been problematic leak areas for several years now.
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