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What does it take to fit 914 2.0L top head tin in a 412? Anyone with pictures?

Hey Bill,

Using some Porsche 2.0L heads? If your talking about the top-side cylinder tins that also wrap over the head, the only difference I can think of off-hand is the location of the spark-plug hole in the tins (further towards the intake manifolds). I dunno, maybe I'm missing something, and someone will correct me on that.

Looking for a pair of 039 2.0L heads? I've got a pair I'm never going to use again......

Travis

Yes, I'm interested in using 914 2.0L heads and matching tin. The 914 2.0L top cylinder tin appears to be similar in outboard width to 411/412 on the #3/4 tin (left in picture), but the outboard width of the 914 #1/2 tin (right in picture) appears wider as it has a round fresh air hole (vs. 411/412 oval hole).

(914 2.0L tin picture from pelicanparts.com 914 classified forum)

See how the tin flares out by the alternator...

(picture from 914club.com)
It looks like the 914 tin will need trimming. Or just plug 412 tin and make new holes?

Hey Bill,

My '73 Westfalia had 2.0L Porsche heads on it when I got it. I ran it the first year-and-a-half with those heads......thinking that those big-valved Porsche parts would be okay, and maybe help performance. I quickly learned that the chamber was too big of a match to those stock pistons (again, bought it this way); there wasn't that much power to brag about, and the damned thing ran too hot. C.R. was too low. Make sure you match the right pistons to go with those heads.

Anyhow, the stock bus tins were cut for the changed spark plug location, and the original holes blocked (not very well, either). Everything seemed to work/bolt up okay, and there wasn't a need to change the heating system to accomodate (i.e.: fresh air to heater-box pipes).

I ended up locating a pair of bus 1.8L heads for my engine rebuild, welding up those new holes in the cooling tin, and slapping it back together. Again, nothing changed. If you're looking for esthetics, then maybe the Porsche tins are what you need. I don't know about the width difference, and clearance within the 411/412 engine bay. Perhaps a post in the '914' or 'Type 4rum' areas is the order of the day.

So, now you're probably wondering why I even posted a reply in the first place, huh?

Travis

Thanks for the tips Travis. I'm looking into a 2056 with 3stud 914 heads. Dimensions of the 914 engine bay would be helpful.

I will use (a rebuild) 914 engine soon in my 412, probably this summer somewhere. Its the longblock of the HWT 2.0 engine

The 2.0 914 cylinder tin doesn't seem that much trouble?. I try and fit the tin when the engine longblock is trial fitted into the car. Cutting excess tin is not difficult then I suppose. I have a Jopex stainless muffler that I want to try on this engine as well.

Walter

Wally,

I look forward to see more of your 2.0 project. What is HWT 2.0 and Jopex muffler?

Could you compare the 914 tin to the 412 tin and show how much and where trimming will be needed? I'd rather not buy the expensive 914 tin just to find they need to be hacked beyond usefulness to fit

Thanks, Bill

Bill K. wrote:Wally,

I look forward to see more of your 2.0 project. What is HWT 2.0 and Jopex muffler?

Heinz Willibald Tuning 2.0 ltr engine Its the engine that sat under the Riechert cooling set up that I want touse for the turbo engine. Its a stock, but rebuild engine and probably hasn't done many miles. I rather had changed the cam, but all stock has its charme (and ease) too.


The Jopex muffler is just a stock muffler, but made of all stainless. Its just a brand, which once made type 4 mufflers in stainless. I only need to replace the bolts and file the excess weld from the openings (quite hard work).
I also got a stainless new tailpipe from a T3 wbx Vanagon from CSP. The aircooled T3 end pipes were too long for my taste.

Could you compare the 914 tin to the 412 tin and show how much and where trimming will be needed? I'd rather not buy the expensive 914 tin just to find they need to be hacked beyond usefulness to fit

Thanks, Bill

Ok, I thought you already had 914 2.0 tin...
I don't have them side by side for you to compare...sorry.. It all depends what effort you want to do. The area around the intake is probably different. I will use the 914 tin myself, rather than change the tin around the intake manifolds because hacking off a piece seems much easier

How fitting... unique motor in unique car...

Since the 914 2.0 intake needs the 914 tin and the 412 heat exchanger needs the 412 tin, FrankenTin will be created

Bill,
Tnx, I think

Your questions made me think a little harder about the actual differences and made me look up the actual 914 tin...
Just found them again and I put them to the tin of a 2.0 ltr bus 4-bolt engine.
That made things more clearly!
The head intake area is identical to the 914 tin...!
Only the spark plugs are in a different spot, but you knew that already.
The bus tin left side has a real dent in the tin (factory dent) probably because of the air filter or s/th, but the 914 nor my cars 1.8 tin has this (luckily).
The tin on my car is actually wider than both the bus and the 914 tin!
All three have the holes for the heater boxes tho..maybe the 914 tin is a litle off, didn't check well for that.

So, in conclusion, you are probably better off relocating the holes in your 412 tin, because everything else still fits like factory than

Thanks for the question and sorry for the confusion...

Best regards, as always,
your pal in that cold country overseas

Thanks for the info and recommendation Wally old pal