LS headed 4 cylinder makes 340hp/500 ft lbs torque
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The power numbers don't sound that impressive for 3.6L of displacement with forced induction.
It's best not to focus on the comparison to other engines though, because there is nothing like it. A big 4 cylinder means we may eventually have cool swaps into small vehicles. Parts may be plentiful. Transmissions and drivelines might be compatible for your GM vehicles. Engine mounting should be easy. These are the selling points, not the HP. Chasing HP is usually a never ending pipe dream that saps all of your time and money, I just want affordability and reliability. You can't have all 3
That would be dependent upon an individual's perspective, circumstances, and criteria, so for some folks, all 3 can be had.
I love the 2.5. But it is still a pushrod engine and cast block.
The biggest benefit of a 4 cylinder is weight. As mentioned there are other better lighter engines that use ohc cam(s) that can make 300hp better.
Heck I am playing with a 91 metro as a backup commuter to my 91 s10. That 1.0 complete longblock (without ac) 3 cylinder weighs in at 140lbs wet.
Guys have made 160 to 200hp reliably with stock heads, and the stock crank with high amounts of boost.
It is all about power to weight ratio.
There is a point where more horsepower requires more weight or custom expensive parts. I will take a 200hp 1800lb car over a 450hp 4000lb car any day of the week. Its not just the engine weight. You need bigger radiatior, stronger transmission, stronger rear end, bigger brakes, etc etc.
While it is great they are playing with the 2.5(if thats even what this is) sleeving a aluminum block and using a overhead cam could produce the same if not better streetable 50k reliable numbers.
The biggest benefit of a 4 cylinder is weight. As mentioned there are other better lighter engines that use ohc cam(s) that can make 300hp better.
Heck I am playing with a 91 metro as a backup commuter to my 91 s10. That 1.0 complete longblock (without ac) 3 cylinder weighs in at 140lbs wet.
Guys have made 160 to 200hp reliably with stock heads, and the stock crank with high amounts of boost.
It is all about power to weight ratio.
There is a point where more horsepower requires more weight or custom expensive parts. I will take a 200hp 1800lb car over a 450hp 4000lb car any day of the week. Its not just the engine weight. You need bigger radiatior, stronger transmission, stronger rear end, bigger brakes, etc etc.
While it is great they are playing with the 2.5(if thats even what this is) sleeving a aluminum block and using a overhead cam could produce the same if not better streetable 50k reliable numbers.
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Highly doubt that's an iron duke block. It leans to the side. Pushrod 4 cylinders went away for a reason. I bet that engine costs more than an LS swap.
Turbo 4's have been making that kind of power since the '80s.
Turbo 4's have been making that kind of power since the '80s.
I Like that 2.7 Dual Volute Turbo that's in The Silverado's and going in the 2023 Colorado's, 310 HP and 390 ft.lbs that would move an S10 pretty good!
I see that 2.7 engine being a recall nightmare. They have so much going on and very little wiggle room for when stuff does go bad. Should make it 36k maybe 60k after a few service bulletins. Of course most 5/60k warranties are vague on if sensors are covered.
Make for a great lease that you don't modify or do anything to besides very basic maintenance. But as far as a junkyard engine that your going to need to run stsndalone in a s10. I feel you have better options.
Make for a great lease that you don't modify or do anything to besides very basic maintenance. But as far as a junkyard engine that your going to need to run stsndalone in a s10. I feel you have better options.
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Boost level for stated output will reveal this combo's potential.
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Cadillac is not having a problem with it. I considered it but for my needs the 2.0 was good enough for me.
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some more reading on it sounds like its an adaption based on an already produced industrial block.
Huge 3.6L Four-Cylinder Claims 500 LB-FT With LS Head and a Turbo
Huge 3.6L Four-Cylinder Claims 500 LB-FT With LS Head and a Turbo
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True That. LS design cyl head design proves that out in spades.........
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Fer Sure would have to be a 4" bore to keep valves from clipping cylinder wall (with shown Sq port LS head.)
i know there are better options. I just think an engine that was designed from a clean slate for trucks and with turbocharging would be a great engine to swap into my S10. I would like to keep a 4 cylinder and it would be different from everyone elses. The engine bk2life introduced would be Great also! But would I be able to find one of those in a wreck anytime soon?
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From what I read , it's a prototype block Blueprint Engines is considering for crate production that uses an LS head. Probably won't be bargain basement, but @ 3.7L , it'll be a fun torquer. Reminds of Pontiac 1/2 389 V8 4cyl engine used in 60s Tempest with transaxle rear end. Star in movie "My Cousin Vinny"
Suspect it's actually 1/2 of an LS engine.
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the 3.6 L inline-four is based on a industrial motor built by Origin Engines for Kohler generators
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Thanks for block source clarification. Begs the question of how cyl head squaring to bores and attachment points were dealt with. Robust Dyno results would suggest this is a viable combo if adaptive costs are low. Did look up Origin 3.6 but didn't recognize block.Origin sells it with a 302 FoMoCo cyl head, hence bolt pattern similar to LS. It's the largest 4 displacement I've heard of . Porsche had a 3L in 944s . Other Origin engines appear to be modified GM sbc and bbc units in visual inspection. Blueprint and Origin apparently in same Corp unit. So this prototype may happen.
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