I need some education engine that is, for my 914-6 Options

[freezing14]

Ok i have the engine apart,, the oil was white,, not a good sign but all the parts are moving freely once the cylinders are off,, will do bottom end anyway,, here is where i need education,, i am looking to keep the cost down,, so i am looking for a set of used piston and cylinder, my pistons are ok but will buy whatever makes sense,,

as i shop around for old 911 engine gear, i have seen that they have E/ S / T version,, what is the difference??, is it just the cam, what was the -6 original came with
????, i have seen piston set for sale but they the valve pocket seems deeper,, is it just my eyes or what

[Eric_Shea]

If you're being budget minded, why not reused your P&C's? Check to see if they're in tolerences and re-ring them.

There's a big difference in all of those engines:

T = Touring Model. Very cost effective engie for Porsche to build. Mild cam. Same size valves as the others but smaller ports. Single valve springs, low compression, cast-iron cylinders. noncounterbalanced crank. 110-125hp I was very successful autocrossing a 2.2T motor against SC's and even Carreras. The bottom end torque was well suited for the task.

E = Injected. Replacement for the Normal or L engines. Came out in 69 MFI. More agressive cam. 140hp

S = Sport. High compression. First ones in 67 had Webers. 69 changed to MFI. Forged Pistons. Large valves and ports. 140-190hp.

There's a bit more to it than that but... you get the picture.