Thread: Hone question

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Just wondering what you guys thought might be the preferred finish hone on a SBF, .030 over, forged pistons, gapless 2nd ring, 10.5 CR. On E-85 with no bottle..... Street use mostly, other then a bit of Friday night grudge race action occasionally....

Thanks

I think the rings determin the hone needed?
Have to look it up for your specific rings.
Sorry I dont have a better answer for ya.

total seal tells you how they want the wall s honed but i would hone it not much dif then i hone any wall for molly rings i start on a fresh bore at 70 150 280 then just a wee bit of the 300 and follow up with the plateau brush less your guy is using diamond

Yeah, that's about all Total Seal sez too, though they don't really consider going to 300 as essential.... Just wondering if anyone might have found anything special that worked good with the ZG 2nd....

i do not care for them rings for the builds i build. you can go to 280 and go right to a plateau brush has alot to do with many things the plateau brush and if its a hard stone or soft stone how much pressure and the make up of the iron of the block

For whatever reason, the SBF's seem to like the ZG 2nd ring.... Guess I can't tell you why, but they work good. The Mustang has 25,000+ miles on it since it was built and still has less then 4% leak down...so no complaints from me!!!! I've heard others with the same dislike of the rings on big blocks--Ford, Chevy's, and Mopar--Wonder what the difference would be that they seem to work well in small blocks, and not so good in the big blocks?????

PS-- Pat, do you run the low tension oil rings on your big blocks?????

no i have not run a low t oil ring on my cars . did machine up a 530 that used 043 rings and a low t oil ring was used i would not use the low oil rings on the4.600+ big bore less dry sump or pump. i do not use the z gap rings more for the $$ deal were guys just will not pay that for rings . i have a customer we have talk about the Z gaps but never used them. i can not see it he putting down big nos and i do not think there a good deal for him. i used them in a 455 buick build

I don't use nitrous, but I do know of a couple guys running nitrous that are using the ZG 2nd ring on forged pistons,,,, Haven't really noticed either of them having any particular problem with them.... I got started with them years ago in a 302, liked them, later put them in a big block Ford and had nothing but grief with them...Took them out after about 10 passes. Used them on all the SBF's since for racing and hot street cars. Now, going to run them on the street in a cruizer.... Guess will just do the block setup and hone like the race engines.....

We put the low tension oil rings in the 501 this winter, ask me in a couple months how I like them....

well in time he may not hear me and used the z gap rings but they are pushing down 500 hp of nos and re ring the engine every year i just can not see it i did use them come to think about it in a 4.600 bore short block but it was stuff the guy pick up told me to use i think they had a ss top ring? i do not know how well they worked

Thanks again for the help, Pat!!! Sure wish you lived a bunch closer and I could just have you do all the machine work... The guy I'm using now does good work, but doesn't really have the experience or confidence to decide for himself what method would be the best.....

Hmmmmm. Maybe we should add on to the shop and offer it to you????? This area really needs a good machinist that can get things done in a timely manner!!!!!!!! Heck, I even have an apartment in the basement you could rent cheap!!!!!!!

Originally Posted by Dave Severson

Thanks again for the help, Pat!!! Sure wish you lived a bunch closer and I could just have you do all the machine work... The guy I'm using now does good work, but doesn't really have the experience or confidence to decide for himself what method would be the best.....

Hmmmmm. Maybe we should add on to the shop and offer it to you????? This area really needs a good machinist that can get things done in a timely manner!!!!!!!! Heck, I even have an apartment in the basement you could rent cheap!!!!!!!

well it would be nice to find a place warm all year roundhell were your at it colder then were i at now when you get your spot in TX let me know i may jump at that

Originally Posted by pat mccarthy

well it would be nice to find a place warm all year roundhell were your at it colder then were i at now when you get your spot in TX let me know i may jump at that

That will be next fall, Pat.... Lots of room down there, you'd be more then welcome.

PS--Only 20 miles from the dragstrip in Baytown where the run the Nationals.....

ford saids that you hone each cylinder for 45 minutes. with any grit as long as it is 45 degrees.45 forn45.on my 302 i used gapless rings with no problems but on my 428 used regular cast iron rings with no prolem. but i do not run nox don't beleive in it. the 302 was 12.5 to 1 and the 428 was 11.5 to 1.

any stones ?? are you sure on that if you did that with a an 131 sunnen stones your rings would never seal ?? and the bore would be about 010+ over in 45 mins with my hone machine but i only bore and hone engine every day under 2.900 bores to 4.625 i have never been told that one

I've ran Fords for years, can't imagine what you would use or why you would possibly run a hone in a cylinder for 45 mins!!!!! More concerned about the finish then the time......