Lapping piston rings

[Alan Roehrich]

[quote=Todd Hoven;493117]

Originally Posted by Monte Howard

It's a BBC rod, but built .500 longer. Not a big deal.[/QUOTE

It's only .010 longer.Instead of 6.625 is 6.635 The standard Chev bearing is the same size as a .050 under Pontiac journal. Easy to get bearings, that's the big advantage. The BBC rod is 50 grams heavier as well.
No great injustice here so relax.

Todd, pretty sure he meant it is 0.500" longer than the stock big block Chevy rod, which is 6.135" long.

The FE Ford was also allowed to use an aftermarket big block Chevy connecting rod before the aftermarket made rods specifically for them.



On the original subject, these days most of us try to get our piston company representative together with our ring company representative, and make sure the ring grooves and rings are well matched. I've found that my friends at JE and CP have no problems talking to Keith at Total Seal, and making my pistons match my rings really well. I do not do much to my rings or ring grooves when I get my parts.

[Mike Pearson]

Alan
Who do you talk to at JE. I need to get 2 pistons to replace 2 that were damaged

Thanks,

[Alan Roehrich]

Originally Posted by Mike Pearson

Alan
Who do you talk to at JE. I need to get 2 pistons to replace 2 that were damaged

Thanks,

There is now a new guy at JE running the Stock and Super Stock program, his name is Allen. I have not dealt with him as of yet, but plan to talk to him in the next 2-3 weeks.

[Larry Hill]

George when you put a taper face ring into the fixture does it want to cup the ring up, away from the land when in compression?


Thanks Larry

[Adger Smith]

This is how a friend of mine back cuts rings to decrease tension.

[George Wright]

Originally Posted by Larry Hill

George when you put a taper face ring into the fixture does it want to cup the ring up, away from the land when in compression?


Thanks Larry

I was not using tapered rings.

[Ed Wright]

Originally Posted by Larry Hill

George when you put a taper face ring into the fixture does it want to cup the ring up, away from the land when in compression?


Thanks Larry

Larry, the top rings I have used were all barrel faced. Had tapered second rings. Never lapped those.