Forged lq4 pistons
Thread Starter
Launching!
Joined: Jul 2013
Posts: 212
Likes: 0
From: Caldwell, Idaho
Forged lq4 pistons Hey guys, so I have an lq4 and I want to replace conn rods and pistons with forged for turbo build. I want to keep stock bore and stroke but can't really find anything except .005 bore. I don't really want to bore it out. Does anybody know where I can find some?
A used engine getting new pistons should be honed, anyway.
NP honing to fit the .005 overs. That will allow for adjusting clearances, providing a true bore, and the correct finish for new rings.
NP honing to fit the .005 overs. That will allow for adjusting clearances, providing a true bore, and the correct finish for new rings.
I don't really want to bore it out.
The LQ4 block has plenty of room to go in bore size, so don't be afraid to clean it up 0.005 for a nice good fit on the new pistons.
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Staging Lane
Joined: Aug 2013
Posts: 51
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From: California
Manley makes a few different ones! They are 4.001 bore which is pretty close to stock. Im sure a worn out block will measure .001 more after thousands of miles. Like the other guys said though, its a better idea to go bigger to make sure those cylinder walls aren't out of round!
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TECH Fanatic
Joined: Aug 2011
Posts: 1,324
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From: Marengo, Ia
Sorry if I'm wrong, but it sound's like your just trying to be cheap and don't want to pay a machine shop. Your going to be paying one anyway to balance your crank for you new rods and pistons (really hoping you knew that because if not you really shouldn't be building a motor) so you may as well pay them to do it right especially on a FI build where your even more likely to be paying to do it twice if you f*** it up.
Thread Starter
Launching!
Joined: Jul 2013
Posts: 212
Likes: 0
From: Caldwell, Idaho
Well wrong you are yes. And I don't know everything I mean I'm 19 and still learning alot more about engines then I used to and understand the basics now I'm learning more in depth of building one but ill get there hopefully. And thanks guys for helping me out.
