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    1. #15
      Join Date
      Nov 2011
      Location
      College Station, TX
      Posts
      204
      Country Flag: United States
      To drive the oil pump I took a stock L36 gear and had the timing gear section machined off so it would fit on top of an Edelbrock (Cloyes really) double roller chain after the Rollmaster billet unit hit the backing plate for the oil pump. Note how much I had to machine off.

      Then I machined the back of the balancer down to make up for the difference and put the crank trigger ring in the right spot. I'm using a real Indy Lites balancer with an L36 timing ring bolted to the back


      I've replaced the hex head bolt with stainless button heads, like the oil feed from the pickup gallery to the pump, the index from keyway to ring orientation is unchanged between the 1986 designed EFI system and the 96 OBDII system.



      The finished product in a few different views and states of assembly:

      Lower section in place with gasket. See the empty bolt hole near the top of the lower section, I've since drilled and tapped the block to add that fastener in.

      Both with no pulley and crank position sensor in place

      Side view with balancer in place

      Fully assembled with oil feed adapters in place, semi-custom billet crank pulley (makes up for the change in balancer spacing due to the crank sensor). Sitting next to it is the tired 425 Nailhead that came out of the Riviera. No I am not going to sell it.
      Central TEXAS Sleeper
      Experimental Physicist

      '64 Riviera T-type: 4.1L Buick Turbo6, 4L80E, L67 OBDII SEFI swap

      ROA# 9790





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