LQ4 build up?
03-26-2008, 12:11 PM
#1
LQ4 build up? I am thinking about getting a complete LQ4 at a junkyard for $600. I believe its a '00, was running motor, and it looks in good shape.
Is this a good platform to mod? I want to get the engine on a stand and build it up. It will be a long term project for a 98-02 fbody. And hopefully I want it to pass emissions.
I was thinking about LS6 intake, LS6 cam, P&P heads, 85 mm TB, 85 mm MAF, 42# injectors, hone the block, forged 4.000 crank, connecting rods, forged aluminum full dish pistons for a 9.0:1 compression ratio. And eventually...boost!
Is this a good platform to mod? I want to get the engine on a stand and build it up. It will be a long term project for a 98-02 fbody. And hopefully I want it to pass emissions.
I was thinking about LS6 intake, LS6 cam, P&P heads, 85 mm TB, 85 mm MAF, 42# injectors, hone the block, forged 4.000 crank, connecting rods, forged aluminum full dish pistons for a 9.0:1 compression ratio. And eventually...boost!
03-26-2008, 12:45 PM
#2
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the iron block is good to use for boost. Does it have a 6.0L stamped in the side? or 5.3L.
I have a 6.0 that I am getting some more info then buying some parts for a killer 408 set up.
Give them 400 cash and see if they take it. If it has 317 heads then it would be worth 600
I have a 6.0 that I am getting some more info then buying some parts for a killer 408 set up.
Give them 400 cash and see if they take it. If it has 317 heads then it would be worth 600
03-26-2008, 02:29 PM
#3
Casting number on the block: 12551364. I initially thought it was an LM7, but then I read the casting number. I haven't got a chance to read the head casting number yet.
I am looking into a 408 stroker kit. Summit has a few, Eagle kit is about $2600 for an all forged kit. Lunati kit is ~$4000.
I may just stick with the stock bottom end and only boost about 8-10 psi. I think I will be satisfied with that.
I am looking into a 408 stroker kit. Summit has a few, Eagle kit is about $2600 for an all forged kit. Lunati kit is ~$4000.
I may just stick with the stock bottom end and only boost about 8-10 psi. I think I will be satisfied with that.
04-01-2008, 12:06 PM
#4
I picked up the motor today...I verified that its a complete 6.0 liter LQ4 with aluminum 317 heads...all for $500+taxes. I bought an engine stand, waiting on a buddy to borrow a cherry picker to get it off the truck. I'm excited to start the project.
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04-07-2008, 01:19 AM
#11
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If your gonna be stroking out the motor, I'd run a larger cam than the LS6 cam. Raise the compression ratio while it's N/A so mill the LS6 heads down. Once you do go F/I then get 72cc chambered heads.
04-08-2008, 12:28 PM
#13
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that sounds like a killer DD set up and good track car.
Don't forget new bearings, seals and gaskets as those add up.
Also look into the katec rod bolts.
Don't forget new bearings, seals and gaskets as those add up.
Also look into the katec rod bolts.
04-09-2008, 09:34 AM
#14
I read a post about running a LS2 timing set, is that recommended with high output? Also saw a suggestion for a ported oil pump. Is it as simple as slightly enlarging and smoothing out the entrance and exit openings? Shim the relief spring?
