Shall I say...SIX?, costs, plus' and minus' of conversion Options

[Trekkor]

I have a line on a 911 engine with Webers in the 245hp range for, say...$1500. (IMG:style_emoticons/default/cool_shades.gif)

I don't have any of the details on displacement, CR, builder, age, blah, blah...yet.

Of course, you buy it. (IMG:style_emoticons/default/chowtime.gif)

Question is, What will I pay to finish the install?
After exhaust, fuel set-up, adapters,oil tank,etc...Bottom line is?

$2000...$3000...$5000...tell me straight up, I'm sitting down! (IMG:style_emoticons/default/rocking nana.gif)

What are the positives and negatives of doing this? (IMG:style_emoticons/default/confused24.gif)

[Eric_Shea]

Well... I haven't dug into my notes but it should be a sand cast aluminum block. If so then you can build on it. They should be strong enough to handle 2.2S goodies. The thought would be to make it a 2.2S motor with the proper P&C's, cams and heads. Good luck finding early 911S P&C's, Cams and Heads though.

It would be a fun 170-180hp if you could put it together. Short-strokers are one of my favorites.

Here's another option. 90mm Carrera RS P&C's, S-cams and some 2.2 heads cut to S-specs. They made a lot of them (90mm's) so they're cheap (in 911 terms). You would have a problem with low compression. Some recommend cutting the heads but that leaves a lot of slack in the chains. There are some machine shops out there that re-bush the rod ends (my choice) to bring the compression back up. This gives you a 2.5 liter short-stroking 220-250hp powerhouse! Yeee-fuching-haaa. That's basically what's going in my GT (built on a 2.2 platform, your sandcast case should be stronger)