Short Stack Torque Maker: This Blown 400ci Small Block Chevy Makes 681hp and All The Twist


Short Stack Torque Maker: This Blown 400ci Small Block Chevy Makes 681hp and All The Twist

Meh, a 680hp small block you say. Why bother watching the video, right? Just another engine that doesn’t make 1,000hp and doesn’t cause some dude’s YouTube project to pull a flaming wheelie for 600ft. But there’s the thing, this is an awesome engine. This is a well thought out, tire mangling, drive it down the highway, love it for years and only change the plugs and oil engine that’s going to be working and rumbling long after many of the dyno queens you see grabbing the headlines.

At 3,800 RPM this engine is making 590hp and 428lb-ft of torque. Moving up the scale, 4,800 it’s making 606hp and 554 lb-ft of torque. At 5,800 it is churning out 646hp and 585 lb-ft and then when they stop the pull at 6,400 RPM the engine is producing 680hp and 560 lb-ft. What’s not the love about this?! The blower, heads, and camshaft are matched perfectly to create this bulldozer like performance that with the right gears behind it will destroy engines that make more peak power but do it in places that aren’t really that usable in normal or even mild performance driving.

The fact that it is a traditional 23-degree headed small block makes us smile as well because we do love us some neanderthal man SBC action. Enjoy this pull and revel in the steady goodness of the dyno sheet.

Press play below to see this romping-stomping 681hp blown small block on the dyno


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One thought on “Short Stack Torque Maker: This Blown 400ci Small Block Chevy Makes 681hp and All The Twist

  1. MGBChuck

    I love me some Gen 1 SBC action too, this ones a sweetheart! (no LS style engine will EVER sound like a Gen 1 due to the firing order) SBCs FTW

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