Chevy 250 6 cylinder HEI conversion 235 292

HEI conversion on Chevy 250 straight 6

[lesgallivan]

The two wires that run to the coil, one is a run circuit with a resistor to cut it to 6 volt, other is a start bypass so it has 12 volt to start. The way you wire it will use 6 volt to run, but hei is designed to run on 12 volt. Find a terminal on your fuse box labeled "ignition-fused", and run a new wire from there to the distributor

[robertarchuletta]

Great video! I bought a truck with a 4.1 and the wires just didn't fit right. So your video showed me the proper location for #1. Nice looking engine!

[THEVROD]

Great Video. Exactly what I am doing changing to HEI. Thank you from Texas

[Geoduck.]

Simple, detailed and to the point. Very helpful! Keep up the good work.

[pauloguina]

this 4.1 engine, it was very famous here in brazil his name and chevrolet opala, and there are videos of him winning from new camaros ie the 6.2 and mustang gt 500 and others we thank you for making such an engine and at the time it was launched competed with Maverick V8 302 and dodge charger V8 318 and even today he makes the cars of this generation go to shame and thanks again for making this engine

[DANIELROMERO-cvtu]

Great video
I plan on installing a HEI distributor on my 1967 chevy 250
Thanks

[isaaclang]

You may have found out by now, but those plastic fuel filters will let you down. I had one fail just last week, came home from town and later smelled gas in the garage. When I moved the filter it drained on my hand. Best stick with metal shell fuel filters, the extra cost will pay off.

[sirlancair]

Good Job Brother. This is a good post..and it allows for comment, hopefully constructive, to add to your very well explained conversion. If i may put my 2c. I love the 63. Many my age were spoiled with v8 sndrome. Imagine if no v8 was ever offered as an optional engine, the aftermarket would be overflowing with performance parts for this amazing engine. The inline 6 is awesome and dead reliable and obviously has a lot of potential.
As Les Gallivan and probably others mentioned. One of the issues when running the old coil on 12 volts (im coming from the marine environment) is that the coil will overheat after about half an hour of running..and it will start to badly misfire. My guess is that with heat comes higher internal resistance. There have been some solutions to this..but basically it involves some kind of restance just before the coil.. On mercruisers, the wire itself has a higher resistance..and it is called "resistance wire." If that wire is INSTEAD, a regular copper wire, then a physical discrete resistor (discrete, as in separate. youve probably noticed them..they are usually rectancular blocks with a wire coming out each end)) is wired in series to the positive, cutting the voltage to around 6 to 8 volts and the overheating coil is solved. Otherwise, with neither the wire nor the discrete resistor, an internal resistor is built into some coils..and you would run Neither the resistance wire nor the external discrete resistor. What happens in boats..and im sure in cars too..is that when you try to start the engine with only 6 volts to the coil, the starter itself hogs the energy, drops the coil voltage..and you dont get the plugs to fire ..that is, the energy has to go thru all the windings of the starter before giving the coil its needed 6-8 volts, and the voltage there is drawn down too for the coil to "step up" the voltage needed to jump the plug gap. The solution to this is to use that second wire which is tapped to the start solenoid...before the starter.. which then runs to the + coil, bypassing the starter circuit. and is only energized to battery voltage as the key is switched to start. I'm pretty sure i got this right..but others smarter people will correct me if I got something wrong...or hopefully some one adds..

[joblink]

These were not very fast, but tough. I has a1954 in about 1958 drove it the 18 year old ( WIDE OPEN ) no problems. Sold to a older man he drove for 25 years.

[josemontemayor]

Great Project....I am Getting in The Same Transformation for my 292....

[yoyofro]

I had the same problem and I put on a extra ground And that seemed to help a lot

[juanjoseloredolara]

Your fuel filter is backwards. And it should be placed before the Fuel Pump

[jeffgroulx]

Is you have a power brakes where did you run the vacuum hose too

[JollyGreen]

I'm looking at doing this set up on my 76 Apollo boat with the 250 straight six. Would like to see a video of it running and know how it all worked out for you.

[MickeysRacing]

Great video! ... is there a H.E.I. available for the 153ci inline 4 chevy II engine?.... And is there a difference in distributors between the 151 iron duke and the 153 chevy II inline four engine?

[Giffey_]

What kind of carburetor should I buy for mine I’m not sure parts are kinda tricky to come across for this engine or I may be looking in all the wrong places lol.

[samwasthebest]

I do not understand the part about the tach wire, I don’t have a tach. So what is that wire.

[MrHevyshevy]

I have a 250 Chevy. It doesn’t run but It’s still cool right?

[Blackhemicameron]

you said the negitive on old coil goes to tach on new distributor but what about the one from points distributor? Do you put with tach as well?

[torileos]

I got the just of it just need a better understanding like all the old wires what to do wit them or like how to clip the new wires in where they go what else u need other than JUST a new distributor ya dig brotha?