2270 Deck Height and CR, Pistons sitting proud of the deck, how many shims is too many shims? Options

[vjb206]

Hey folks! I have the bottom-end of my 2270 assembled and spinning freely. Thanks to all who helped me get to this point!

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To quickly recap: I bought the 2257 kit from AA Pistons (78mm stroke, 5.158" rods, etc.). And when I threw a P&C on for a test-fit last weekend, I immediately noticed the piston sitting proud of the deck height at TDC (negative deck) by about 2mm.

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Before I overreact, or buy the wrong stuff, I thought I'd ping the community...

1. Is this normal for a stroker set-up?
2. Can you stack multiple shims when getting up into the .06 >> .09 range?
3. (If no-stack) What's the best place to have custom shims cut?
4. I recall Jake saying using large shims requires lots of advance, anyone have experience here? What am I looking to adjust for upon start-up?

Once I figure out whether or not this is normal (I.E. verifying that I don't have to backtrack), I'll get into the CR questions (just waiting on clear plastic from Amazon so that I can measure my CC volume this weekend) (IMG:style_emoticons/default/biggrin.gif)

Thanks!

[VaccaRabite]

I'd say that if you got 60cc measuring with your little syringe and your machinist got 60cc, then 60cc is probably right. Move to the next task. :-)

Pay attention to @cgnj 's post. You will need the stroker tubes and you will need to make your own pushrods. You will likely need shims between the rockers and the heads. EMS sells the shims. In the dark ages I just used a washer as a spacer too though. I did measure the thickness of the washers though so I could get them the same size.

When you use the the spacers you may need to shorten the adjuster stem a tad or it will tap against the valve cover and scare the bejesus out of you!

Zach