opinions about this 6 cyl engine? Options

[jmitro]

this popped up on my local facebook - appears to be a 911T engine.
I'm tempted to buy it just to have for the future. What's the core value? can it be rebuilt to E or even S specs?

https://www.facebook.com/marketplace/item/2674783612589753/

[gandalf_025]

Looks to have Zenith Carbs ..
Seems pretty complete.


This is sitting on Boston Craigslist
So they are out there...
This is less complete but a 2.4

[Tdskip]

If it is not known to be good you have to assume it is a core and requires a full-on rebuild. That is why it is priced like it is.

You can build one of these, really any 911 6 to nearly any spec you want, all it takes is money and lots of it.

The clear market trend is to build 3.x and larger engines rather than the earlier ones, cost is about the same (or sometimes less in the case of a 2.7L) and you have more power and potentially a longer lived engine once all is said and done. Cost of fuel and oil systems is about the same but be aware any MFI engine can be quite expensive to get sorted.

You would be far ahead to simply buy a known good engine from @mepstein than roll the dice on this.

I've done a fair amount of research and agonizing here, happy to share what I've learned but ultimately up to you and your budget so eyes open but do what makes you happy.

[TravisNeff]

It can be rebuilt to E or S spec. It would be a 2.2 engine for 1970. You could also build it into a 2.5 short stroke screamer with some 2.7 liter jugs and open up the spigots.

[mepstein]

If it is not known to be good you have to assume it is a core and requires a full-on rebuild. That is why it is priced like it is.

You can build one of these, really any 911 6 to nearly any spec you want, all it takes is money and lots of it.

The clear market trend is to build 3.x and larger engines rather than the earlier ones, cost is about the same (or sometimes less in the case of a 2.7L) and you have more power and potentially a longer lived engine once all is said and done. Cost of fuel and oil systems is about the same but be aware any MFI engine can be quite expensive to get sorted.

You would be far ahead to simply but a known good engine from @mepstein than roll the dice on this.

I've done a fair amount of research and agonizing here, happy to share what I've learned but ultimately up to you and your budget so eyes open but do what makes you happy.

(IMG:style_emoticons/default/agree.gif) 100% they all end up costing about the same. Mag cased engines are less expensive to buy but then make it up with more machining on the case. P & C's are about the same price no matter what size you need. Carbs need rebuilding, MFI needs rebuilding, etc. But some cars won't look right with a big engine. 914-6GT clones, 911RS tributes, etc need the right "look" and CIS or Motronic won't cut it are heavier and might not be right if you are vintage racing. Best to buy what personally turns you on.

[mb911]

@3k you can't go wrong carbs and air filter are worth 1500-2000 depending on how they clean up.. I just sold an air filter like that though restored for 900..

2.2 and 2.4 engines are less stressed engine cases and typically rebuilds will not be as expensive as a 2.7

I was unfortunate to have a bad crank and case on my 2.4 when I got it for 1k .. Spent a bit to get that worked out.

[sixnotfour]

2.2 can be spingot bored ..but 70 no squiters,if bored it will crack behind #3cyl.
keep it 2.2 or stroke it to 2.4,, 71s have squiters..
72-73-2.4 stronger case, squiters, longer stroke..can be bored no prob. esp if 7r case

mag cases are lighter..love me a 2.4 modded mumble jumbo...

[roblav1]

The 70T engine has a non-counterweighted crankshaft. Garold has a 2.7 core for sale at $3k that I'd be looking at before this one.

[bretth]

2.0 engines are low horsepower as was mentioned. For the price of this core motor you could probably have a 2.0 4 cylinder rebuilt and get the same horsepower with less weight. But then it will not have that 6 sound.

[Mark Henry]

When I was on the hunt I bought the rear half of a beat 76 911 with a '69T engine for $3K, that got me a set of webers and four 15x6 fuchs and 50amp fan assembly. I made better than half my money back parting out the car.

Then I bought a 2.7 disassembled engine with lots of rebuild goodies and a 70amp fan assembly for $1200. I kept the gasket set (except for 2.7 only bits) sold the rest of the rebuild parts and the new(ish) dizzy for what I paid and I still have the longblock with a std/std crank.

Then not wanting to blow my budget machining a mag case I settled on a 3.0 disassembled longblock and with it got a package deal on new 3.0 mahle "RSR style" 10.5:1 cr pistons for $2K (core) + 1200 (pistons)= $3200

With that I was at best halfway, 1/3.... ok maybe a 1/4 way there. (IMG:style_emoticons/default/rolleyes.gif)

[gandalf_025]

Here is a core 2.4 closer to you..
Buy it without the MFI Setup for 2500 or less
and build from there.

http://forums.pelicanparts.com/porsche-911...mfi-system.html


If the 2.0 had Weber carbs it might be worth it, but they look like Zeniths and they aren't worth anything like Webers.

[TravisNeff]

Good deal on that one $2500

[Mark Henry]

If the 2.0 had Weber carbs it might be worth it, but they look like Zeniths and they aren't worth anything like Webers.

Zeneth's can be good carbs, but agree it's webers you want. I don't think I've seen it done yet but you could gut the zeneths add FI bungs to the manifold and use them as TB's
My advice for non-mechanic who wants a budget engine is to spend the extra on a running engine with a PPI.
A non operating engine, sure I'd give a go at getting it running, but it's likely a core and I'd treat it as such.

If I was personally buying a core to rebuild I'd look for a 3.0 up engine, if just because of the aluminum case. If you rebuild all the /6 engines cost roughly the same, why not build a bigger engine.

[sixnotfour]

used T MFI $7500 ???? WOW

[jmitro]

Thanks for all the responses. (IMG:style_emoticons/default/beerchug.gif)
Rebuilding engines is not what I do well; If I'm going to try it myself I would be better off rebuilding my 1.7 TIV to a 2.4 or something.
On the other hand, I also wonder if inserting a 6 into my car would give it more value down the road than a 4...
I'll check into that engine on Pelican.

[Superhawk996]

On the other hand, I also wonder if inserting a 6 into my car would give it more value down the road than a 4...

Wrong reason to do a six. $40K invested asking $24K is a common theme with 914 six cylinder conversions and hobby cars in general.

Build it becuase you want it and will enjoy it, not for percieved resale value that is unlikely to materialize.

[Tdskip]

On the other hand, I also wonder if inserting a 6 into my car would give it more value down the road than a 4...

Wrong reason to do a six. $40K invested asking $24K is a common theme with 914 six cylinder conversions and hobby cars in general.

Build it becuase you want it and will enjoy it, not for percieved resale value that is unlikely to materialize.

Exactly, sage observation.

[jmitro]

gotcha, thanks (IMG:style_emoticons/default/beer3.gif)

[rgalla9146]

used T MFI $7500 ???? WOW

(IMG:style_emoticons/default/agree.gif) Core. Wow is right. You beat me to it.