Hard Starting when HOT

I have a 1972 big block which was giving me a hard time starting when it was hot. Just install a new starting and still will not start when hot...HELP...  

TRY DISCONNECTING THE VACUUM ADVANCE. IF NO HELP MAKE SURE TIMING IS SET CORRECTLY  

If the starter doesn't crank at all, open the hood for 5 minutes and it'll start. Then buy a heat shield or a high torque starter. heat soak into the starter is a normal C3/4 problem.  

you need to install a starter relay from a 70 dodge dart...  

you will need some 12 gauge wire...  and some 16 gauge wire..

various ring terminals. and 1/4 female push on terminals..

find a place to mount the chrysler relay near the starter ....  on normal chevys i put it on a heater box stud...  

run a 12 gauge wire from the top stud on the starter solenoid to the big stud on the starter relay.,
3/8" ring to 5/16 ring terminals both yellow sleeves..

run a 12 gauge wire from the center terminal on the mopar starter relay to the S terminal on the solenoid..
#12 ring terminal to #12 ring terminal both with yellow sleeves ...

with the wire off the S terminal from the starter solenoid..    run that to one of the push on terminals on  the mopar starter relay...

this wire can be 12 gauge but it does not need to be...

14 gauge is ok for this extension..

a #12 ring terminal on one end. to a 1/4" female push on quick disconnect terminal ...  i usually find a small machine screw and nut to connect the S wire ring to the extension wire you have made and tape it after you tighten it..   you can also cut and crimp it.. but i really don't like cutting off factory terminals..


the other push on terminal on the mopar relay i run a short wire to a good ground...    

1/4" female push on quick disconnect terminal to usually a 5/16 ring terminal... sometimes 3/8 ring terminals..

when you do this... you remove the amp draw from the ignition switch...   delco starters can take up to 50 amps to pull the starter solenoid in...  

just think... battery  to starter to underhood harness through the bulkhead connector, to the ignition switch, to the neutral safety switch back through the bulk head connector and the under hood harness finally reaching the starter...

once it gets to the starter.. it goes in the S terminal.. and out the bottom terminal and through the positive brush, the armature  the ground brush, the starter case, the engine block before it gets to the battery ground..

the mopar starter relay takes less than 2 amps to close.. has large enough contacts to handle the current flow...   you just won't believe how fast and easy the car starts after you do this...

there is more power available at the ignition switch for the ignition system..  and the starter kicks in so fast you will think the key is directly connected...

click and its running... no more waiting for the engine to cool before trying to start the motor...

this even helps with aftermarket mini starters...

almost every new car made in the last 10 years has a starter relay... to do just this....

ford sw3 starter relays have also been used...   but the mopar unit is available for the same price and is easier to stash...