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Old March 27th, 2023, 07:03 PM
IdahoFarmboy IdahoFarmboy is offline
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Join Date: Mar 2023
Location: Princeton, Idaho
Truck: 401M in Hyster
Age: 50
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Smile 401M - HEI and Holley carb upgrade

Hi all, I was hoping to get a little info on upgrading my 401M in my Hyster forklift we use as a hay squeeze. I found a bunch of good info on 6066gmcguys website a few years back but can't seem to get on those pages now. I've read a bunch of good threads here but haven't found my exact situation.

Will the Holley 500 #4412 carb and #1937 adapter plate work on my 401M?
It currently has the Stromberg.

Also planning on doing the HEI conversion with the EvenFire Buick V6 HEI distributor. As far as the bushing needed, I am going to check with WE7X to see if he still has any in stock. Or, we can build our own quite easily once I know the specs.

Thanks in advance for any info,
Wade
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