ziggy,
That alloy SR20 sump is from Tas motorsports, bought a while back.
I cant recall if I purchased directly from them or via Ebay.
You can buy plenty of these on ebay =- they are all same same. China Spec copies of the Tomei design
SR20 alloy sump - ebayWhat I haven't been able to find is an affordable place to buy the flange needed to adapt this up.
The few places that do sell them for this exact purpose will cost around the $200 mark to get it delivered.
sr20 Sump flange - excessive manufacturing[img width=300]https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwi6_v_d8-DmAhVIzDgGHa3hAPgQjRx6BAgBEAQ&url=https%3A%2F%2Fxcessivemanufacturing.com%2Fnissan-drivetrain-chassis-engine-sr-n-sr20-ssf.html&psig=AOvVaw0fpal9IOaDkrm-H0k1AJxQ&ust=1577916648779673[/img]
The item is $73 US, so about $100AUS plus over $100 postage, plus import charges + GST plus whatever else
Ill get them made up at a local laser cutting place, and end up with at least 1 spare due to the min cutting requirement thing they do.
I will have to cut the threads into the flange for the bolts, but thats not biggie