Thank you. I was chatting with a datsun (1000) owner who is on here, he thinks the reason for the drop in activity is due to Facebook. Whenever I chat with datsun owners I ask if they're on this site, and lately it seems most don't even know it exists. It used to be all my contacts were through here.

No love for oval ports anymore?

Chevy Monza?

For sale:
H75 Datsun oval port head in excellent condition. Head has double valve springs installed, includes rocker arm assembly and new lifters/tappets still in the box, part number 13231-H1001. Price is for all items together.
PM me on here for phone number.

Out of interest DD I had an adapter for extending the snout on the pulley, perhaps for adapting the different offsets. That was from an A15.

Issue is D you need a shroud for that thermo fan (although they're available through ebay too for extra cost). And it wasn't getting hot at high RPM, it was hot at 800rpm sitting still in traffic. The temp would crawl up and the fan combined with the aging radiator was not moving enough air. Hence a newer fan with more power.

Also consider height is an issue in the 1000. My bonnet barely shut with a 120y rad. The wider A14 radiator fit fine but the one I had was in even worse shape.

Bracket example:



I like that any container can be an overflow bottle, lots of opportunity for something ridiculous (like a VB tinnie)

The fan bolts directly to radiator if the top of the shroud is trimmed to fit around the top hose. One side needs a short bracket made up but I used a cable tie through the fins for the time being.




The bottom will not come free as it is sort of wedged into the bottom tank and also bottom hose.

The bottom of the rad itself has two plastic posts that fit into holes I drilled in the rad cross member.

The old radiator was giving me trouble, and was corroding badly. I had it in combination with an ebay thermo fan so it was never going to work that well. I picked up a radiator from an EG civic, and a slim AC thermo fan from a mid 2000s Holden Astra (Vauxhall?).

Comparison:



I used the civic hoses cut to size in combination with the lower datsun hose. Then trimmed the fan shroud to fit on the radiator:



Mounted in the car:



Slightly shorter than the 120y rad, fits under the bonnet fine:



Also needs an overflow bottle, and some mounts bent up to stop it falling into the crank pulley. Runs cooler in traffic, yet to test it properly (Sydney summer). Was cheaper than an ebay alloy rad at $90 for the parts and I got a fan too. Any suggestions to make it even better?

There's a hot 4s and then a fast 4s. Fast 4s was earlier I think.

So I guess that first video proves it's real. The made the 200+hp and then rebuilt the engine to make 300+hp. And possibly cheaper than a late model engine swap.