tylerdustin2008

iTrader: (1)

Hello.

I just bought the following for my LQ4, stock bore, stock pistons.

Mahle Motorsport 4.000" + .005" plasma moly ring set 1.5/1.5/3.0

What exactly will I need to do to make sure everything fits perfectly.

When I ordered them from Speed Inc. The guy said that a hone is necessary, I know a hone is needed for the new rings to seat. But Is one needed for the new rings to fit.

Also whats the best way to check my ring gap? This is what i have found for gap clearance, 0.02-0.03 in.

Thanks in advance.

My new rings will be in later today, so I need some quick responses.

Thanks again.

Tyler

LS1-450

iTrader: (33)

Why did you buy +.005" rings? Even if you honed enough for them to fit, the stock piston skirt clearance would be too great & would cause piston slap @ the very least. Send the rings back for a stock bore set, hone lightly for ring break in & be done w/ it. If you want the +.005" rings, get +.005" pistons, if they exist, so that the assembly tolerances are correct.

Always2Slow

iTrader: (8)

Its not an ls1 though if the pistons don't slap!

gjohnsonws6

iTrader: (12)

+ .005 rings are the norm when it comes to a file fit set.Do a quick hone,set the gaps for application.

tylerdustin2008

iTrader: (1)

Well these are the only size for my bore, all the others are larger.

MAH3903MS Mahle Motorsport (for stock LS1 pistons) plasma moly 3.898"+ .005" $139.99 buy
MAH3910MS Mahle Motorsport 3.905" + .005 plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH3915MS Mahle Motorsport 3.910" + .005 plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4005MS Mahle Motorsport 4.000" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4035MS Mahle Motorsport 4.030" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4043MS Mahle Motorsport 4.040" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4065MS Mahle Motorsport 4.060" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4075MS Mahle Motorsport 4.070" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4085MS Mahle Motorsport 4.080" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4130MS Mahle Motorsport 4.125" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4135MS Mahle Motorsport 4.130" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4140MS Mahle Motorsport 4.135" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy
MAH4160MS Mahle Motorsport 4.155" + .005" plasma moly ring set 1.5/1.5/3.0 $139.99 buy

And the last guy posted that these will work....

LS1-450

iTrader: (33)

^^^

It's all good, he posted that because they are file fit; meaning that they will work after filing to fit. I agree, if file fit, then they will work once fitted. Didn't think about them being file fit as it was not listed in your original post.

tylerdustin2008

iTrader: (1)

Alright cool.

Yea, this is my first big project. So I have allot of questions.

I have about $8500 in my project now, with another $2500 to spend.

PREDATOR-Z

get the shortblock professionaly assembled and blueprinted.

mtuggle86

iTrader: (7)

He didn't ask if he should have it professionaly assembled and blueprinted. He clearly wants to do it himself.

bjamick

iTrader: (31)

Well he can do it himself, just have the rings file fit for the block and each separate piston. The machinist will number the pistons and rings for which hole they go in.

garygnu

if you are file fitting your own rings use the piston upside down to place the rings square in the cylinder bore.make sure to debur the ring ends good so not to leave scratches on the cylinder wall.do you have the proper files and feeler gauges?you have removed the rods from the crank ,you need to resize the big end .you mite need to balance it.