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Lq4 rebuild internal troubles

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Old 05-20-2010, 03:09 PM
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Default Lq4 rebuild internal troubles

I just got my LQ4. Doing a swap in my 86 Monte Carlo SS. Will drive the car to work about 3-4 times a week to the track and to our weekend night cruisesand have some fun. I want to take it on the power tour next year also. Shooting for 450-500 N/A with an MFI setup next year. Considering a decent build since I am putting money into the top end I might as well put a touch on the bottom end. I want to keep the stock crank.
A few questions:
What combination would be good?
Stock crank, stock rods, aftermarket pistons, arp rod bolts, standard bore or .030 (wouldn't mind a little more CI).
What aftermarket pistons are good?

I am having trouble finding threads on mild built bottom end LQ4's. Any response would be a great help. Thanks.
Old 05-20-2010, 04:13 PM
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check out our budget 408 longblock combo, geared that packaged for exactly your intended purpose.

https://ls1tech.com/forums/sponsor-s...le-4999-a.html
Old 05-20-2010, 04:20 PM
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Check out K1 or Scat rods; both are pretty cheap $$ wise. I think K1 sells Weisco pistons and rings also. Gm High Tech did a similar build. It was around $7000 for the long block, but you might not need everything they built. AES' price looks pretty good.
http://www.gmhightechperformance.com...ild/index.html
Old 05-20-2010, 06:19 PM
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Originally Posted by AES Racing
check out our budget 408 longblock combo, geared that packaged for exactly your intended purpose.

https://ls1tech.com/forums/sponsor-s...le-4999-a.html
No disrespect your work and products look great. This is something I have been wanting to take on and achieve my self for some time. So now that I have my block I am beginning to piece together my shortblock. I see you used the 6.125" 4340 forged rods. Are those H beam or I beam rods and can I use those rods with the LS motor and stock crank? I thought you could only use them with the standard SBC. THIS IS WHERE I AM CONFUSED. WHAT RODS AND PISTONS DO I NEED?CAN I USE?

Originally Posted by sherm6998
Check out K1 or Scat rods; both are pretty cheap $$ wise. I think K1 sells Weisco pistons and rings also. Gm High Tech did a similar build. It was around $7000 for the long block, but you might not need everything they built. AES' price looks pretty good.
http://www.gmhightechperformance.com...ild/index.html
Thanks. Nice article. Looking at the scat rods I would like to use them but dont know which ones I can use with the LS motor.

Last edited by sschevyss; 05-20-2010 at 06:50 PM.




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