You are looking at a brand new ‘Noryl’ plastic Holden V8 Dust Inspection Cover made by Dellow Conversions in black .
This cover will suit all original Holden bellhousings when using a Trimatic auto, Aussie 3-speed or Depress 4-speed transmission. It can also be used with a Dellow Conversions bellhousing when converting to a Muncie, Saginaw, Single Rail, Top Loader, T5 and Tremec TKO transmissions
4 x 1/4″ UNC
2 x 5/16″ UNC
Note: Not suitable for vehicles with extractors that get very hot