How Much Nitrous Can The Stock Pistons Handle?

Ant said

Possibly in the future I might want to experiment with power adders, like nitrous. I have a 1972 or 73 318 LA which is now a 323 with replacement cast pistons, a stock crank, stock rods and moly rings gapped within spec, but more towards the higher side (I forgot the numbers). The recommended safe shot from Nitrous Express is 100HP, which they told me over the phone years ago. But how much further can these cast pistons for the small block Mopars be pushed before they give up? And with addressing the ring gaps too?

Click to expand...

I have no idea where to buy it.
BUT,
After you gap your rings appropriately,
After you research adding fuel to your nitrous ‘shot’ in order to avoid going lean-

Research a ‘Progressive Nitrous’ system or valve which doesn’t ’SLAM’ the rotating assembly and bearings with 50, 75, 150, 300 horsepower shot of nitrous oxide.

The valve opens at a controlled rate.

Originally this system was created by a British guy in the late 80’s I believe but also David Vizard used this system on “STOCK BRITISH 4/6 cylinder cars that typically made 90-100hp with the equivalent of a ‘300 shot’ volume of nitrous.

You can Google this as well I believe. But I am sure that this type of system is sold here in the United States.

It should extend the life of your engine, wallet, and fun.

Best wishes