914 with 2.4 engine

[daloff]

I was looking at a early 914 in very nice condition. The owner had taken the 1.7 and "bored" it to a 2.4. The car ran and drove very nicely, but I was wondering if there are any tolerance issues or reliability issues with this type of "enhancement". (1.7 to 2.4)

[Bleyseng]

Must be a 78x103 motor which uses steel cylinders. They tend to warp after 30k miles and start to leak oil.

Geoff

[John Rogers]

Find out what crank was used and what rods were used when it was assembled. If it is what is known as a "short rod" motor then the rods can break at high RPMs (6k or so). If it was a forged crank and after market forged rods then it should be strong. Also ask if it has a cam with type 1 lifters as that is done sometimes when building hotrodded engines. Good luck

[daloff]

Thanks John and Bleyseng I will and report back.

[skline]

78X103 would be a 2.6 liter.

[Acox914]

try a 76 crank

[Jake Raby]

Actually, cast iron 103s are lucky to see past a dyno session or 10,000 miles without a head leak starting!