318/340 main caps, new low price $95usd shipped
They were never available from Mopar Performance or Direct Connection that I remember. These bolts were never offered. The kits only came with the long bolts and recommended the Hemi head bolt washers as see here on the 340 bolt. The windage trays were also different from mopar. They had slotted holes to fit both engines.
They came out of 318 4 bbl's used in Police cars in the mid 80's. I would buy the diplomats for the engines and 4bbl throttle pressure linkage for 904's. So I would yank the driveline and scrap them. I used the linkage on 4bbl engine installs here is a Duster I built using the linkage.
They were never available from Mopar Performance or Direct Connection that I remember. These bolts were never offered. The kits only came with the long bolts and recommended the Hemi head bolt washers as see here on the 340 bolt. The windage trays were also different from mopar. They had slotted holes to fit both engines.