Camshafts and pistons

[M491Cabriolet]

Hello! I was wondering if camshafts with the part number "901 105 183 OR" and a Bosch distributor with the part number 0.231.169.011 are OEM 911S parts. Any advice would be greatly appreciated.

Also, I was wondering if anyone might know what effect rebuilding a 911T 2.4 engine with 2.2 911E pistons and camshafts would have. Would this be a positive step in terms of performance and compression? I know 2.2S pistons would lincrease the compression substantially from the stock 7.5 of the T pistons.

Another option I have instead of the 2.2E pistons is to use 2.4 911S pistons and E camshafts. I also have the above cams, but am afraid the drivability (99.9% on the street) would suffer. Anyway, I don't know which would be better.

Also, would the use of the above distributor on my stock or modified 911T engine provide any improvement?

Final question... Would any of the above modifications on a engine needing a rebuild anyway negatively impact the value of my 1972 911T coupe?

Any help would be greatly appreciated! Thanks in advance.

[Mo_Gearhead]

Just from my readings (no personal experience) the S cams make their power in the upper RPM ranges, so for a 'street engine' you may be better off and enjoy the 'driveability' with the T or E cams.

ANY distributor you use should be checked for proper advance characteristics,
for the engine combo you are running. The wrong setup can hurt performance.