LM7 pistons and rods
Thread Starter
Teching In
Joined: Feb 2022
Posts: 5
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From: Central Kentucky
LM7 pistons and rods I’m looking into building an lm7 soon. Will be a little turbo engine for the street but mostly strip. So I’m wanting to keep the stock bore and stroke if I can. But I do want to put pistons and rods in it. I was interested in the wiseco “junkyard dog” pistons because they use the stock rod length. Problem is I can’t find any 6.098 rods other than summit and K1. I’ve read some mixed reviews on them both. So I thought I’ll get some pistons that are made for a 6.125 rod because there are A LOT of those out there. But I can’t find any pistons that support 6.125 but using the stock bore. Maybe I’m looking at something wrong I’m not sure lol. Any help and advice is much appreciated since I’m new to the game.... This is probably a stupid post but Im trying to learn... lol. Thanks
@WS6store.com @tech@WS6store
The WS6 Store has several complete kits for that sort of rebuild. I think the rods were separate. Hopefully, this will help with a rough idea. There are several versions of the kit and they can tailor it to your need etc.
WS6 Store - RPM Speed LS Complete Engine Rebuild Kit
The WS6 Store has several complete kits for that sort of rebuild. I think the rods were separate. Hopefully, this will help with a rough idea. There are several versions of the kit and they can tailor it to your need etc.
WS6 Store - RPM Speed LS Complete Engine Rebuild Kit
TECH Fanatic
Joined: Jan 2022
Posts: 1,034
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From: Seattle
Do you have the engine apart yet? I wouldn't start looking at what sized pistons you think you'll need until you take a look at the cylinder walls. It might make sense to have it honed to a size that is more common and has more piston sizes available.
We do have many options available.
There normally isnt a reason to go with forged, especially if youre not going to make sure the bore is straight, but also for even 500 to 600 hp, the stock or stock style pistons seem to work just fine and dont have an issue sorting rods. Just gap the rings for your intended goals and make sure the tune is good.
There normally isnt a reason to go with forged, especially if youre not going to make sure the bore is straight, but also for even 500 to 600 hp, the stock or stock style pistons seem to work just fine and dont have an issue sorting rods. Just gap the rings for your intended goals and make sure the tune is good.
Thread Starter
Teching In
Joined: Feb 2022
Posts: 5
Likes: 1
From: Central Kentucky
Thread Starter
Teching In
Joined: Feb 2022
Posts: 5
Likes: 1
From: Central Kentucky
We do have many options available.
There normally isnt a reason to go with forged, especially if youre not going to make sure the bore is straight, but also for even 500 to 600 hp, the stock or stock style pistons seem to work just fine and dont have an issue sorting rods. Just gap the rings for your intended goals and make sure the tune is good.
There normally isnt a reason to go with forged, especially if youre not going to make sure the bore is straight, but also for even 500 to 600 hp, the stock or stock style pistons seem to work just fine and dont have an issue sorting rods. Just gap the rings for your intended goals and make sure the tune is good.
TECH Fanatic
Joined: Jan 2022
Posts: 1,034
Likes: 468
From: Seattle
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Brett Foote Thread Starter
Teching In
Joined: Feb 2022
Posts: 5
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From: Central Kentucky
Yes agreed I say this all the time LS1 pistons cost no more than 5.3 Pistons now you may have to pay a double fee to have your block bored to go 120 over but you're going to have at least one fee in it anyway going over standard .
Thread Starter
Teching In
Joined: Feb 2022
Posts: 5
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From: Central Kentucky
Also, DO NOT BORE THE BLOCK BEFORE YOU HAVE THE PISTONS, but also DO NOT ORDER THE PISTONS BEFORE YOUR MACHINE SHOP CHECKS BLOCK OUT.
We have customers do BOTH this year even though it was recommended against on the phone and they had to wait to swap pistons out. Do the foot work first so you can get it all done at once without issue.