Lq4 bored to ls3
#1
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Lq4 bored to ls3
I am rebuilding my lq4 and came across a set of new ls3 pistons and rods for dirt cheap... My question is can it be done....Can I bore out my lq4 block to a ls3. I have done a lot of google search but no answer several people have asked this question on ls1tech and other sites but their threads had no good info.
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I bored a 2012 ironblock to 6.2 and machine shop said I had meat left and it was safe. Motor sitting on stand now bout to go into a 67 chevelle. The lq4 block should have just as much meat but one thing machinist did say is that some blocks have the meat and others don't its on a block by block basis.
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Have block sonic checked some have enough some don't due to core shift etc... I've gone .040 on my stroker nitrous motor. And it sees a 300 shot everytime it's out.. Still livin, block is partially filled tho to bottom of waterpump holes. I think stock ls3 is 4.065 and most pistons are 4.070. I personally wouldn't do it if your using a power adder, but you could probly do it if it sonic checks with enough. Take block to a known LS machinist in your area and have block baked and checked and go from there. Be sure to ask if he has a deck plate!
#7
N/A you will most likely be fine unless you have a block with serious core shift. My 6.0 block is half filled to the water pump ports and bored to 4.07". Stock 6.2 bore is 4.065"
Like stated above I would NOT go that far with a power adder. Stick with 4.03". You will never even notice the difference .04" makes power wise. But you will notice it if it goes BOOM!
Like stated above I would NOT go that far with a power adder. Stick with 4.03". You will never even notice the difference .04" makes power wise. But you will notice it if it goes BOOM!
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