Propane manifold on a gas head (H-350)

Oregon Tractor Jack · Jul 9, 2014

Is there any advantage to putting a propane manifold on a gas headed tractor to increase performance? I need a new manifold for one of my 350"s and I see you can get either the stock manifold or a propane manifold. The propane manifold is advertised to increase performance, what ever that means. This is going to be a tractor that is used just for pulling.

Your feedback if you please.

Thanks.

Janicholson · Jul 9, 2014

The real HP increase will be modest but worth it. The port shapes are better for some flow increase, but mainly the advantage comes from keeping the incoming fuel/air mix cool. This keeps the mix as dense as possible for pulling. The modern fuel has little issue with vaporiation in the summer, and if it is dedicated mostly to pulling you will not have carb icing (often a problem when in a humid climate in spring and fall) so go for it. Jim

Propane manifold on a gas head (H-350)

Oregon Tractor Jack

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Janicholson

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