Salvaging a toasted 2.4/4 back to 2.0 or so? - Rennlist - Porsche Discussion Forums


Salvaging a toasted 2.4/4 back to 2.0 or so?


Old 06-05-2016, 08:39 PM
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Default Salvaging a toasted 2.4/4 back to 2.0 or so?

I acquired a nice 914 with a 2.4 /4 engine. Ran very strong but was leaking oil around the cylinders and cam seals, etc.
Local Porsche shop disassembled the engine and recommended against trying to seal the cylinders to the case as it had very little surface remaining.
So here's the question.
Assuming the crankshaft and camshaft are still good and I do want to keep the Dellorto 45's and 1 5/8 European racing headers( no heat exchangers) and use the front oil cooler(Patrick GT Conversion).
Iĺm thinking I must find a 2.0 Short block, or will a 1.8/1.7 case work?
Obviously I will have to find barrels and pistons for whatever case I use.
Rod journals on a 2.0 are smaller, so if I keep the crank I must use a 2.0 case, eh?
I found a set of 2.0 heads today at the PCA swap meet, hopefully they will check out.
Final question, what are those 2.4 cylinders & Pistons and heads worth?
Thanks for reading.
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Old 07-28-2016, 06:09 PM
Join Date: Jun 2014
Posts: 356

no one cuts the case these days and installs those 104 pistons and cylinders as it ruins the case and runs very hot. You can use a 1.7 1.8 case yes, the 2.0 just a little more relieved for piston skirt clearance. Try to get a case through 74 with the dual oil pressure relief valves as those cases are much superior to the 75 76 style
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