This will cause some of your belts to no longer align properly. When moving from an 8 bolt to 11 bolt timing cover with our kits, the water pump will be changed from a 4" to a 4 1/2" shaft. If you are not going for a numbers matching car, we offer kits which include everything you need to convert from 8 bolt to 11 bolt. The cooling was much more improved on the 1969 and up 11 Bolt Timing Covers. It inlcudes 8 and 11 bolt water pump gaskets as well as the other gaskets and seals needed.īutler Performance Pontiac Timing Cover Gasket Kitīutler Individual Timing Cover, Water Pump Gaskets, and Seals To make it easy we have put together a gasket kit that will fit any timing cover and water pump. We can provide you all the gaskets needed for timing cover and water pump installations. Though not completely necessary, they will make the installation and alignment of the timing cover fast and easy.īutler Pontiac Timing Cover Alignment Sleeves These small sleeves help align the timimng cover into the block. Need help measuring to see what pump you have? Click here to read our article on water pumps. To use a Flowkooler 4 1/2" pump you will need a conversion kit which includes the pulley needed.***īutler 4" to 4 1/2" Flowkooler Conversion Kit ***1969 1/2 models came with a 4" Water Pump. One to seal the plate to the timing cover and another to seal the water pump to the divider plate.ġ969 and up 11 bolt water pump divider plate- Zincġ969 and up 11 bolt water pump divider plate- Stainlessġ969 and up timing cover to water pump sleeves These 1 pc water pump plates take 2 water pump gaskets. The design was changed to a single water pump divider plate and the addition of water sleeves to seal and direct the water flow more efficiently. In 1969 the 11 bolt timing cover and water pumps were introduced with much more efficient cooling. Pontiac Water Pump Divider Plate 1969 and up These 2pc water pump plates take a single water pump gasket. The 2pc plate we sell without the notch works in all 1964-68 models regardless of timing cover. Early 8 bolt designs are notorious for cooling issues. This notch could have been to keep water from getting trapped behind the plate but in all of our testing it seemed that the single hole directed more water into the engine and may have been the reason it was removed in the later models. The 64-65 had a notch and later models the notch was removed. Note that the 64-65 model could have the bottom plate already cast into the cover. The 64-68 models had a 2pc water pump design. Pontiac Water Pump Divider Plates 1964-68 Water Pumps- Flowkooler High Volume Aluminum with Billet Aluminum Impeller (Butler Recommended)įlowkooler High Volume Cast Iron with Billet Aluminum Impeller Timing Cover- Butler 11-Bolt Replacement Timing Cover With the 11 bolt design, the water is trapped in the correct channels and is directed with much more efficiency into the engine. This allowed water to go in other directions and made the flow inefficient. The 8 bolt plate sat inside the cover and had no sealing around the edges nor did it seal against the water pump holes. The plate is now located on the outside of the cover where it seals off the water in the timing cover. The sleeves are now a seperate piece that are inserted into the holes and sealed against the plate. There are significant improvements on the 11 bolt timing cover model and not simply the addition of 3 fasteners. Timing Cover- Butler 8-Bolt Replacement Timing Coverīalancer- Powerbond/Dayco Pontiac Balancers or Romac Pontiac Balancersġ969 and up Pontiac Timing Cover- 11-Bolt Tab Style The main difference is the tab is now spaced out for the larger balancer. The main difference in this model is the timing pointer is now a 12 degree timing tab.ġ968 Pontiac Timing Cover- 8-Bolt Tab Style- Balancer Clearance Update Water Pumps- Flowkooler High Volume Cast Iron with Billet Aluminum Impellerġ966-67 Pontiac Timing Cover- 8-Bolt Tab Style These divider plates are sold in sets and the bottom plate will not be used in this case. One major difference on these besides the pointer is that some had a divider plate already cast into the cover. There may be different versions of each with slightly different variations of the timing tabs but the basic tabs and the clearance for the balancers are consistent from year to year.ġ964-1965 Pontiac Timing Cover- 8-Bolt Pointer Style We have taken the time to show each timing cover and address the ways to identify them. We get a lot of questions regarding timing covers and water pumps. Keeping a Pontiac engine cool is vital to it lasting. Apparel, Cups, Decals, Books, Gift Cards.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |