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Old Jun 17, 2024 | 06:35 PM
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Default Atk lq9

Anyone with feedback about ATK? Looking at there OEM LQ9 short block as one of my options. Plan to call them in a day or two and thought I’d get something out here before I do.
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Old Jun 17, 2024 | 10:07 PM
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I used a ATK bare block 4.03 finished bores. I wanted to assemble the engine myself. So far it’s been great.
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Old Jun 18, 2024 | 06:58 AM
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Thanks, ATK is one option.

I have a local shop I have used a lot but they may be slipping a bit lately so I’m looking for options.

I have a short block that needs to be cleaned up so I could go that route, just not sure about timing as well. Local shops that are still running are SLAMMED in my area.

Texas Speed is another option but I don’t think I want to forge this bottom end so they are a bit pricey for what I need/want.

ATK seemed like the only place with an OE like build which is why I’m here asking some pre-questions.




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Old Jun 18, 2024 | 04:51 PM
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Where are you located?
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Old Jun 18, 2024 | 06:38 PM
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New Hampshire seacoast.
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Old Jun 18, 2024 | 09:41 PM
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I just bought one myself. .030 over flat top short block. Haven't run it yet as Im still in the process off gathering parts. Got it from Summit, free delivery to my house.
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Old Jun 19, 2024 | 01:40 PM
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If you don’t mind me asking

How long did it take and what made you pull the trigger? Also did you get a balance sheet?
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Old Jul 10, 2024 | 10:33 AM
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@epfatboy,

We have the ATK LQ9 short block in stock if you're still looking. There is a limited-time free shipping offer on them so you'd have the price for the short block and tax. You can get a to-the-door quote on our site before providing credit card info.
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Old Jul 30, 2024 | 05:27 PM
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$5K for a 408 short block with 24X reluctor, manley forged crank, rods and pistons. Throw on AFR 245cc heads and a good cam and whoa baby!!!!
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Old Jul 30, 2024 | 08:34 PM
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So yeah that sounds like a blast and here is where I landed…

sent the 2002 LQ9 to the machine shop

2 + weeks went by and I go for a visit, block not bored…

came home called Texas speed, forged 408 short block (sledgehammer) delivered to my door 4 working days later…

I used the 799 heads and a little bigger cam but I’ll probably buy some ported heads and swap them with the 2002 LQ9 when the machine shop calls.

And as expected the machine shop called literally a little while ago and my now 6.2 short block will be ready at the end of the week…

tempted to run 826’s on the 6.2 and port the existing 799’s for the 408.

honestly I really didn’t want the 408 but got pissed so here I am.





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Old Jul 31, 2024 | 12:51 AM
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Originally Posted by epfatboy
So yeah that sounds like a blast and here is where I landed…

sent the 2002 LQ9 to the machine shop

2 + weeks went by and I go for a visit, block not bored…

came home called Texas speed, forged 408 short block (sledgehammer) delivered to my door 4 working days later…

I used the 799 heads and a little bigger cam but I’ll probably buy some ported heads and swap them with the 2002 LQ9 when the machine shop calls.

And as expected the machine shop called literally a little while ago and my now 6.2 short block will be ready at the end of the week…

tempted to run 826’s on the 6.2 and port the existing 799’s for the 408.

honestly I really didn’t want the 408 but got pissed so here I am.

Inventory is never a bad thing these days. I would keep both and run what you consider the best for the combo. That being said, 862's are great, but on a 4.065 bore, just do something else. My cheap *** doing exactly what you are doing, I would put the 799's on the 6.2 and some TFS 220's on the 408. Winner all the way around for the $$$.
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Old Jul 31, 2024 | 07:22 AM
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Sorry I meant 823 heads (square port) on the 6.2 but as you said I think the 408 could use some breathing room!

i also have a 2005 4.8 set up for a turbo in the corner of the barn. The inventory I need are some rollers!

first world problems….
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Old Aug 1, 2024 | 09:43 PM
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Could always sell the 408...totally unrelated where you located lol
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