LS Talk All things based on the GM LS platform engine

          
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Old 04-06-2022, 11:02 PM
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Default Ok, LS’ers, tell us about this 6.6 engine, that’s in the new 3/4 ton pickups!!!

Anything new about it? Bore, stroke? Same deck height as all the other LS, LT stuff?

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Old 04-07-2022, 12:29 AM
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https://www.holley.com/blog/post/dee...w_6_6l_l8t_v8/

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Old 04-09-2022, 04:16 PM
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I love the displacement of this engine - for obvious reasons.
I wonder how responsive this mill will be to bolt-ons and possibly cams.

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Old 04-11-2022, 11:06 AM
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Official ad;

https://poweredsolutions.gm.com/products/l8t-engine/

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Old 04-11-2022, 12:37 PM
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Quote:
Originally Posted by PDC View Post
I love the displacement of this engine - for obvious reasons.
I wonder how responsive this mill will be to bolt-ons and possibly cams.
About the same as any LS/LT engine....crazy power with just a cam change.

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Old 07-25-2022, 07:06 PM
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Here is something I prepared earlier on the L8T engine...

https://www.whichcar.com.au/features...ors-l8t-engine

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Old 07-25-2022, 07:14 PM
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One interesting note in Marv's article was that Ford has released a 7.3 pushrod crate motor - the cammers were too damn big to fit in older cars.

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Old 07-25-2022, 07:28 PM
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The 7.3 Godzilla is already well on its way to supassing the LS for swapping popularity down here in Australia. The cheap buy-in price of crate motors and the fact they're able to make huge horsepower fairly easily is getting a lot of Aussies excited - I actually wrote this article BEFORE I wrote the L8T article above. https://www.whichcar.com.au/features...illa-v8-engine

Here is one car already running numbers in Aus: https://www.whichcar.com.au/street-m...ered-xa-falcon

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Old 07-25-2022, 10:37 PM
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It is not even the numbers - the Modular motors did not fit into anything older. I thing when LS's were finding their way into Fox bodied Mustangs Ford saw the challenge.

To me it is not about the most power - always somebody else with more. My 5.3 build using the newest GM LT stuff to me is more practical: mid 20's mileage and 400 horsies. and weighing 400 pound wet - what's not to like? But GM is fixated on the 6.2's and their crappy mileage...

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