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From: Hank Dozier
Remote Name: 22.214.171.124
Date: September 16, 2003
Your 318 should have a cartridge filter and a shunt (bypass) system. This was to prevent the cold oil pressure from causing leaks around the cartridge can and also to give a pressure bypass since the carteridge filters had no bypass. To correct this issue when converting to a full-flow spin-on type filter (can use the base plate setup from a late poly or an LA engine), you need to plug the bypass under the rear main cap in the block. Best way to do this (assuming you are doing a rebuild anyway) is to tap the hole for a sse screw of the appropriate size (I think around 10-32 or so, but check with calipers for actual size needed) and to put Loctite on it and screw it into place under the main cap. This will force all oil through the filter, and utilize the filter's internal bypass. Do not do this unless converting to a full-flow spin-on type filter, or you could get massive cold leakage from the cartridge filter setup. As for headers, need to contact me off-list, as I will need specifics on manifold/carburetion/ and Chris' cam specs.