this are kit parts on A-wing I was not able to identify yet (+ few in cockpit and canopy). I am still searching.
There is few great builds of SS A-wing here so I want to kindly ask for help if you know and want to share some kit IDs
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Part 1 looks almost like from Tamiya 1:12 McLaren M23, but 1:12 scale is twice as long as needed. So it must be part from kit with ford engine but in 1:24 scale.
Tamiya make many of the F1 kits in 1/20th, and ILM used loads of them.
Check the P-34 or Lotus kit as I know they used them, and they also used the Ford engine.