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I recently got two Model a's and lucked out the 39 model has a heisler head and the 42-44 model (steel serial number tag rusted) has a powerblock. Im wanting to build a puller out of on of them. What would be the best setup? Was hoping to put the heisler on the 42-44 model but don't think you can because of the added stroke unless you mill the pistons down. Anyone know anything about it?
 

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I'd love to find a Power Block for my 60.... All I'm going to do is put higher compression pistons in, maybe a different cam. It'll look stock, not too crazy, and it should last for generations that way. I plan on possibly pulling with my 60 as well, just not full out "at any cost" competition. I want to keep it.
 

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If the serial number is rusted, how do you know it is a 42-44 model?

Either way, there were a few different types of hiesler heads made so a part number would be helpful. if i remember correctly i think you can, but i think you cant run hi-compression pistons with a heisler head. I am not a 100% sure but for building a puller i think you might be better off tricking out a 42-44 head with your powerblock and go with higher compression pistons. Without knowing what other engine/performance mods you are planning on making and class you are trying to pull in its hard for me, or anybody to give you much advice on that.

The only thing i can safely say is set it up and roll it over a few times and see what happens. Its not like any of those parts cant be swapped out easy enough should you run into a problem. I think it would be interesting to pull with both as they are and see which out preforms, i am guessing the powerblock would win out but who knows, after that i would build around that.

Please keep in mind that everything stated above was my free information, let me hand you the salt shaker....

As heard at a pullin competition:

2nd place Puller: "Hey...the first place guy cheated!!"

Judge: "how do you know?"

2nd Place puller: "Cause im cheating and he beat me!!"
 

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Discussion Starter #4
42-44 model because I'm pretty sure all other years were aluminum tags, plus a few other things that are in that time frame. Head is ha587, with matching manifold cant remember its part number. But I did also hear that head is for an unstyled block and wont bolt up to a power block or styled block. And I'm not sure on other mods, not trying to spend a ton and gonna use it mostly tug pulling possibly 3mph. Thanks

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once again, i am no expert, but....and dont take this the wrong way, BUT...if you have all those parts laying there, why not test fit stuff and see if it will work instead of asking people who arent in front of your parts? lol You can "hear" anything you want, but you have everything you need right there. Start putting stuff together and see what bolts up, what wont etc etc. Test fitting parts dont cost a thing. Maybe i just saved you a ton of money. Who knows, just cause some dude on a message board says it cant be done doesnt mean i wont try for myself haha. For what its worth i am not a puller, to many cheaters and 5 year olds.

most pullers wont tell you anything useful because you may be their next competition or someone they dont like may read what they do and try to reproduce that.

So test fit stuff and tell us what you find out cause i would be interested to know. - side note, for some reason i have it in my head that a heisler head takes a hiesler manifold setup.

Again, heres the salt shaker....only YOU can answer my questions now haha
 

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dieselshadow,

when you say higher compression pistons, are you talking about just using LP pistons, or getting a true high comp piston?
 

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dieselshadow,

when you say higher compression pistons, are you talking about just using LP pistons, or getting a true high comp piston?
I haven't located any pistons yet. I'd like to get some true higher compression pistons. Maybe something like 8-9:1, nothing absolutely crazy. I still want reliability and good running. Do you know who currently offers pistons like that?
 

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off the shelf high compression pistons for a 60 may be a bit tough to find. Most pullers use an A or G or 70. I would have to do some researching, but would a green dash 620 piston work? I dont remember if they bumped the comp ration on them. I also dont remember, did you bore yours out? If so that maybe even tougher.

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There was a company that used to sell cylinder inserts to increase compression. Short of that the only thing that comes to mind is LP pistons or just getting a set made. Which all in all, wouldnt probably be more than 150 bucks a hole maybe?
 

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Discussion Starter #9
I have both the head and manifold cause they're on a running tractor which is why I hate to take it apart to find out if they fit lol cause then ill be out two sets of gaskets

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But I'm almost positive they wont fit now cause I found out unstyled and styled use a different oiling system along with the different pattern so now im just trying to find out what kinda head I want to run on the power block

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