I found a Post on Ebay for the CS Engine for 7499USD,

eBay Motors: 2006 06 PORSCHE CAYMAN 3.4 ENGINE/MOTOR ASSEMBLY 1664 (item 130148872926 end time Nov-28-07 11:40:09 PST)

Any one got Spare 3.4 Engines with them and are interested to sell please let me know and also what all do i need to Change, i dont know much about Engine Conversions.

If you're willing to pay that much for a used engine conversion, why didn't you buy a CS in the first place? I think the difference between the C and CS is about K$8-10. I personally would exchange the Cayman for a CS if I were in your shoes.

I live in Bangkok where the Difference between the C and the CS is roughly 50,000 USD
Also, the quota for CS was Full for Thailand and Porsche Thailand wanted me to wait at least 16-19 Months before i could get the CS so i went with the C which costs 50,000USD lower than the CS.

Makes sense.....

I'd send a PM to PCA-Tech. He is an expert in engine swaps. I think a new engine costs around $10,000. If so, I'd try to negotiate this one a little lower.

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Let me know how it goes, Im in the same situation as you, will need $30,000 to be able to upgrade to an S.
Im in Costa Rica

Can we get the S brake for the base model?

I'd part with the 3.4 in my CS for the right price

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"The Cayman doesn't need any more toys." -- My wife

I'd suggest trade in your 2.7 for a CS. There are many differences between the Cayman and the Cayman S besides the larger engine. Larger brakes, beefier sway bars, etc. You'll need the latter for the additional weight the 3.4 brings.

Just my 2 cents

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Suncoast has a deal on a complete brake package that will give you slightly better brakes than the CS.

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LL

Wow, that much difference! I just think and engine will adversely affect the car's reliability and its resale value.