318 hard start when hot

NJen42 said

so negative battery jumper (from other vehicle) to negative battery on the dodge, and positive jumper to block? Seems sketchy, or I'm not understanding..

Or you mean jumping negative from my dodge battery to the block?

Sorry if I seem a little ignorant, I'm not much of a mechanic but am trying to learn and also this is one of very few pre 90s vehicles I've messed with. Mopar in general for sure though. Lot different than the chevy's I've worked on

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Nowhere was another car mentioned. All good.

Just your battery neg to the engine block. Creates a larger ground path circuit. If it starts easier when hot, you know that the cables may be a part of the issue.

You can do the same on the positive side. I don't recall if there is a solenoid wire headed to the starter. If there is, double up the positive side from the battery to starter. Some of the trucks buss the positive side starter cables at the relay. I built a starter cable for a customers truck and it was a single cable, no aux stuff on it.

JMO, throwing parts at it without diagnosing where the issues lies is a poor approach.