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!

(IMG:http://www.914world.com/bbs2/uploads_offsite/media.giphy.com-23760-1708984357.1.gif)

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.

(IMG:http://www.914world.com/bbs2/uploads_offsite/media.giphy.com-23760-1708984358.2.gif)

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!

[Superhawk996]

Have you fully researched the use of head gaskets? If not, do so then make your own decision.

I don’t want to rehash the topic which is contentious.

The thermal linear coefficients of expansion for aluminium, copper, and steel per degree centigrade are:

Copper 17∙10E-6
Aluminium 23∙10E-6
Steel 12•10E-6

[930cabman]

Have you fully researched the use of head gaskets? If not, do so then make your own decision.

I don’t want to rehash the topic which is contentious.

The thermal linear coefficients of expansion for aluminium, copper, and steel per degree centigrade are:

Copper 17∙10E-6
Aluminium 23∙10E-6
Steel 12•10E-6

I built a 2056 a couple years ago and was on the fence with regards to the use/no use of a head gasket. I checked and double checked everything including Plastigage at quarter points at the cylinder/head mating surface after torquing everything together. I was pleased with the results and learned mating the heads to the cylinders without any sealing product works well.