[opelitis5]

Good afternoon!! Started taking apart my 1955 265 c.i. engine and it has these pistons in it. L2038 I believe they are forged TRWs but I don't have a catalogue... I'd appreciate what this piston is if anyone has something on this... Crank is a nice forged 3735236 M=010 R=010...
Too bad no oil filter capability on block, yet, I am sure the guy that had it B 4 me had raced it or was going to as the oil pan has been cut on the sump and re-welded with extra material. Oil pump also has extension on it and a neat way of retaining the collar... Timing cover has actual slotted screws mating it to the block.. Will pull balancer and cam next week.. This is kinda interesting as it is GM V-8 history at its introduction to the market way back
with the block 3703524 encoded L20 4... Main caps are 3704066 units.
Would appreciate help on the L2038 breaking it down as to what they are (the pistons) and what comp ratio they are and what c/r they would be if I put camels on it at 030 over hoping it all checks out...
Thanks!!! T

[opelitis5]

For the 20 guys that read this query, L2038 +030 pistons are by TRW and are the forged variety with 4 valve reliefs... I wonder how long this engine
would last as it has no oil filter provision in the normal place... I believe it was an oil bath air cleaner???? Not sure but how many miles B 4 oil changes would be appropriate... Believe the heads had 50 - 55 cc chambers...