L46 Compression Question
Thread Starter
Intermediate
Joined: Jun 2013
Posts: 34
Likes: 0
From: Jemison Alabama
L46 Compression Question
I am revamping my 69 and have 195-200lbs compression on all cylinders car runs fine and does not smoke what was compression from factory Should I install rings and bearings etc while engine is out I can't find these numbers on here or anywhere else I have been told 225 on cylinders from factory but not sure
Any help would be greatly appreciated
Any help would be greatly appreciated
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
It would not be wise to change pistons/rings without re-boring the cylinders. The present rings have worn to match the wear in the cylinders. Putting new [round] rings into worn cylinders is a recipe to lots of blow-by oil and potential disaster.
If you are not blowing oil smoke now, the rings are still sealing well. Leave them alone. I would just check a couple of rod and crank bearings, and if OK, let the engine live its useful life. You can change heads, cam, etc. without redoing the pistons/rings/crank.
If you really want different pistons, have the block re-bored.
If you are not blowing oil smoke now, the rings are still sealing well. Leave them alone. I would just check a couple of rod and crank bearings, and if OK, let the engine live its useful life. You can change heads, cam, etc. without redoing the pistons/rings/crank.
If you really want different pistons, have the block re-bored.
Thread Starter
Intermediate
Joined: Jun 2013
Posts: 34
Likes: 0
From: Jemison Alabama
It would not be wise to change pistons/rings without re-boring the cylinders. The present rings have worn to match the wear in the cylinders. Putting new [round] rings into worn cylinders is a recipe to lots of blow-by oil and potential disaster.
If you are not blowing oil smoke now, the rings are still sealing well. Leave them alone. I would just check a couple of rod and crank bearings, and if OK, let the engine live its useful life. You can change heads, cam, etc. without redoing the pistons/rings/crank.
If you really want different pistons, have the block re-bored.
If you are not blowing oil smoke now, the rings are still sealing well. Leave them alone. I would just check a couple of rod and crank bearings, and if OK, let the engine live its useful life. You can change heads, cam, etc. without redoing the pistons/rings/crank.
If you really want different pistons, have the block re-bored.
I also heard something hit the floor when I removed the reverse switch any ideas on that I could not find it and it had to be extremely small
No smoke; so just new valve seals and lots of shiny stuff for now
I really appreciate your reply I am new on here and this is my first Vette and maybe my last not as much room as a 55 or 57 or even a Nova
