Engine size

Impossible to say without removing one cylinder head.

As you thought, the cylinders can be replaced with bigger units, and the crankshafts are available in many sizes, both allow you to change the displacement radically.

I know the type 1 engine (Which is what you have) has been bumped up to

3 liters in size. There is no way to tell on the outside what size your engine is.

If you remove one cylinder head, you can measure the cylinder bore, and the distance how much the piston travels in and out. Those will give you the total displacement.

Jan

Is there a formula using the bore and stroke measurement?

Mark

Bore (mm) x Bore (mm) x Stroke (mm) x 3.1416 = Engine CCs

I think it is Bore (mm) x Bore (mm) x Stroke (mm) x 0.0031416 = Engine CCs

1 cc = 10mm x 10mm x 10mm, that's the reason we use 0.0031416 instead of jut the value of pi

I got my info out of a CB Performance catalog. After doing the math myself, I believe you caught an error. Doing it the way I wrote would have made a 90.5 bore and 69 stroke equal to a 1775404cc engine. Thank you - Robert

damn....that's a big engine!!!

Robert, the mistake is not on the formula, but on the units. 90.5mm bore and 69mm stroke equals 1775404 cubic MILIMETERS. There are

1000cubic mm per cc. So, 1775404 = 1775.404cc.

Jan

Hi Karls - Thank you again. I will guarantee that when I am old and sitting in a wheel chair with a blanket over my lap, that I will remember this lesson. :) - Robert

Not really an aswer to your question... But anyone else out there will want to be aware of this also. When purchasing an engine or an aircooled VW... watchout for the knuckleheads that claim that the engine is larger than stock size. The kid I bought the '69 from swore it had a 2110cc motor. Yeah right. a pict34/3 carb on a 2110cc motor... I think not. Turns out it was a stock 1600.

If you go with a bigger displacement - stay away from the 88mm slip jugs. They have a thin cylinder wall and will overheat easily. It all goes back to the old rule... how fast do you want to go depends on how much $$ you are willing to spend. Then longevity starts to come into play. The bigger motors tend to not last as long as the stockers, unless you go with a type IV block. It can withstand a little more abuse. Not saying that all bigger motors don't last long, I suppose it all comes down to quality of parts and how well its assembled and how badly you abuse it.

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1966 Type I "Old VW"s don't leak oil, they mark their territory."vwvwvwvwvwvwvwvwvwvwvwvwvwvwvwvwvwvw

Thanks for all the help guys.

Mark