[Gordon Raymond]

Going vintage racing? It will be fine. I've an AUSCA GTA engine made at AUSCA in early '66 from parts. I've another, currently set up as a single plug race engine with a un-numbered block. This was a dyno cam test engine.

When Ausca raced and built these cars, no-one cared if the engine was original to the chassis, engine made up of early or later GTA components and more. These were race cars! Autodelta and Alfa supplied AUSCA parts, we built engines and went racing.

 

[Gordon Raymond]

Do you know how to tell? Years ago at AUSCA, Ron Neil told me to get a late GTA block out of our parts collection for him. There were at least 20 blocks under the benches. I asked him how to tell which was which, how to tell a "late" one. Ron told me that the later GTA blocks (Not my own earlier unnumbered GTA block from Autodelta) were heavier than all others having more alloy up around the upper main webs. The weight difference isn't much, but indeed, late GTA blocks weighed on a bathroom scale were heavier than others. I was amazed at the time. This was about late 1966 or early 1967 I believe.