Preload shims; where to buy

G`day ,

is there a difference between .

pre 1985 # 571746

post 1985 # FRC2886

hi, thanks for the replies. i think we might be talking about different things. i am talking about the shims which sit between the heads and rocker shaft pedestals which are used to set the appropriate preload at the lifters during engine assembly

i understand the shims are the same from 3.5 - 4.6

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Originally Posted by mpwdhc

hi, thanks for the replies. i think we might be talking about different things. i am talking about the shims which sit between the heads and rocker shaft pedestals which are used to set the appropriate preload at the lifters during engine assembly

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The first answer to your post involved a question about which shims you were after.

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Originally Posted by Scouse

The first answer to your post involved a question about which shims you were after.

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I presumed swivels was a difference in terminology since 2x 15 thou has been mentioned as per my original query.

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Originally Posted by mpwdhc

I presumed swivels was a difference in terminology since 2x 15 thou has been mentioned as per my original query.

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G`day ,

if you have trouble finding any you could makes them .

Most bearing type places will carry shim material of different makeups , brass , steel etc and should advise you if unsure how to work with it .

Use the base of one of the end pedestals as a guide/template because they have the oil hole in them and if you drill the holes , it will be easier to use the sheet as a whole rather than small pieces .

I have in the past used 3.5 inlet gaskets the factory ones not the aftermarket type .

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Originally Posted by PLR

G`day ,if you have trouble finding any you could makes them .Most bearing type places will carry shim material of different makeups , brass , steel etc and should advise you if unsure how to work with it .Use the base of one of the end pedestals as a guide/template because they have the oil hole in them and if you drill the holes , it will be easier to use the sheet as a whole rather than small pieces .I have in the past used 3.5 inlet gaskets the factory ones not the aftermarket type .

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excellent idea, thank you !

I got a lifter preload shim kit from RPi some time ago when I bought a Piper Torquemax, don't remember price but probably expensive (because it is RPi) but it did have everything you needed.