I never saw an aussie 302 didn't realise that the block was bigger than ours,I have a 302 clevor that someone else built it is a 302windsor (5.0)block with 351 cleveland heads and a boss302 intake the problem I have is the intake ports are much larger than the head ports and I assumed the aussie 302 was a smallblock as was our boss302. The reason I didn't go 351 is I got this engine in a car I bought for parts. So I guess I'll grind the ports to match the intake