Well thanks to an input from a datsun group i found an Oil pan i’ve been searching for for a while. Last time i lost the Auction, but this time i was better prepared, and today it finally showed up at my doorstep:
The Promodet L6 Large capacity oil Pan:
The manufacturer, Promodet Japan, is still active today, but is a well-known porsche tuner these days. I’ve seen those oil pans a few times in Japan, but they seem pretty rare.
I found an old Ad for this Oil Pan in the February 1996 “AutoWorks” Magazine (Japan), listed in one corner (rest of the ad is mostly Porsche stuff) for “Drag Use & High power Engine”
The ad mentions that this Oil pan, solves a few Problems of high Power L-series engines:
1. Engine movement and crank bending (thanks to it’s special rigid shape, material and thickness, it adds more strength to the block)
2. Reduction of oil resistance
3. Prevention of oil spillage
4. Prevention of uneven oil distribution thanks to the SPL baffle plate
According to above ad, it is cast from AC4A-T6 Aluminum with additional heat treatment and has an additional baffle plate, something that looks like small cooling fins and an additional plug for an Oil temperature sensor.
I think the Blue fitting is not the original one, so i will try to find a plug that suits the whole thing better.
Thanks to the person who pointed me to the pan!