Shovelhead lifter block on '51 Pan?

Bottom End (crankcases and crankshaft)
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tickface
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Shovelhead lifter block on '51 Pan?

#1

Post by tickface »

Quick question, can I run lifter blocks/lifters/solids from my 1972 Shovelhead on my 1951 Pan/shovel?
Thank You in advance.



steinauge
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Re: Shovelhead lifter block on '51 Pan?

#2

Post by steinauge »

Yes.If your 72 blocks are original they should even use the same 1\4x24 TPI countersunk screws that the panhead uses.If your lifter blocks are aftermarket be sure you have the correct screws.Most aftermarket blocks use a socket head capscrew(allen) that is available in both thread pitches-20 and 24 TPI.

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Re: Shovelhead lifter block on '51 Pan?

#3

Post by panz4ever »

steinauge... If you run them do you not have to block off the oil return hole for the hydraulic units since 51 motors are not not set up that way

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Re: Shovelhead lifter block on '51 Pan?

#4

Post by steinauge »

No. your 51 right case doesnt have the feed passages for the later style lifters so there is no issue there.I have a 49 with later lifter blocks that dont have the holes plugged.Been that way some years now,no problems.

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Re: Shovelhead lifter block on '51 Pan?

#5

Post by Cotten »

I have never found cause to block holes ever.

(Except those funky early '80s where the cylinders drained into them!)

....Cotten

JR JOHNSON
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Re: Shovelhead lifter block on '51 Pan?

#6

Post by JR JOHNSON »

cotton, so you say you don't plug the tappit blocks,but how about the guy removes the hdy. units, and replacing them with the solids conversion? won' they pump up,no where for the oil to go? or will the oil presuure push the conversion tappit up, putting valves into piston? never played with them, just a crazy ouestion. with respect jr

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Re: Shovelhead lifter block on '51 Pan?

#7

Post by Cotten »

JR JOHNSON wrote:cotton, so you say you don't plug the tappit blocks,but how about the guy removes the hdy. units, and replacing them with the solids conversion? won' they pump up,no where for the oil to go? or will the oil presuure push the conversion tappit up, putting valves into piston? never played with them, just a crazy ouestion. with respect jr
Jr!

A "solids conversion" can be dropped in with no regard for the oil galleries at all.

There is nothing to pump up in a solid, and there is no reason to remove the primary source of oil to the tappet itself. Relying upon splash from the bottom and drainage from above is not all you might like it to be.

It is best not to juggle with the motor's balance of oiling,
and you may wish to return to hydraulics some day.

.....Cotten

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Re: Shovelhead lifter block on '51 Pan?

#8

Post by JR JOHNSON »

THANKS COTTON, I HAVE A B GRIND CAM, THEY WANT TO RUN SOLIDS WITH, I HAVE HYD TAPPITS IN MY 59,AND I HAVE THAT COVERSION KIT TO MAKE IT A SOLID, NOT GOING TO USE THE SPRING, MY CONCERN WAS THAT IF OIL IS STILL GOING TO THE TAPPIT,MADE FOR HYD.,FILLING THE VOID UNDER THE CONVERSION,MAKING IT LIFT,OR MAKE VALVES RUN TIGHT? NEVER PLAYED WITH THIS STUFF BEFORE. THANKS FOR YOUR RESPONCE WITH RESPECT JR

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