Eric Weingartner is testing that today on a live feed. Currently at 936HP and 766TQ. They are going to keep pushing until it fails.
At What Power Level Will a Factory SBC Shortblock Fail?
Steve69SS396
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Eric Weingartner is testing that today on a live feed. Currently at 936HP and 766TQ. They are going to keep pushing until it fails.
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They are looking for a big bang! They added timing and got it to 936/780. They just went to lunch and they are trying to decide what to do next. To change the pullies on a Torq Storm you need to heat up the pulley and press it off and on. Not as easy as Procharger. They might just go to twin turbo's to get it over 1,000HP.
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If I was wanting to test the inherent strength of a short block without anything external breaking stuff prematurely (blower pulley yanking on snout of crank, tuning errors) I would definitely use a turbo set up with a bunch of octane and well controlled timing/boost/afrs.
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What pieces did they use in the shortblock? 350ci?
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They changed pullies and just made 1,056/835. It's a "604" crate motor he calls it. It has an 010 block with a cast crank and stock rods but it does have forged pistons. Here's the video of the 1,056HP pull and he shows the block casting and gives some information on the engine.
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Over 20 years ago a buddy of mine put a strong 350 in a 240 datsun z. It was an ordinary 2 bolt block, but with good stuff in the rotating assembly, all forged. Put a set of brodix heads on it, and a 300 shot of nitrous. It made a little over 900 hp on an engine dyno. Never had any trouble out of the bottom end. He sprayed that car to a 9.52 at 152, rolling out about to the 60 ft mark to spray it so it wouldn't sling the stock halfshafts out of the car. No cage, no subframe connectors, stock 1971 datsun seatbelts. Started tearing the body from the subframe at the left front corner of the car, so he stopped pounding on it so hard. But yeah, a stock shortblock can often take mind boggling power if everything's right on the tune.
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I've seen more 23° old style SBC's take a ton of punishment and live to race another day, but then there we some that blew apart with the newer 880 soft block. Most of the time the rotating assy. fails and take the block out. Looking at Ed's video, Who says SBC engines aren't tough?" 
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Factory block will be into the 1400-1500 area.
more likely to loose a head gasket due to the head/valve layout of the SBC before the block lets go
more likely to loose a head gasket due to the head/valve layout of the SBC before the block lets go
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Here's some details on the engine. It is an 010 4 bolt main block, 350 cubic inch. The rods and pistons came out of the "604" crate engine which is made by Chevrolet for circle track. The rods are powdered metal with ARP bolts. The crank is cast.
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I have buddy that has a 1050Hp Procharged 355 stock block that’s been running for 10 years with no issues. It’s got a good rotating assembly though.
It’s been proven that the powdered metal rods are super durable. Looks like they decided not to blow it up.
It’s been proven that the powdered metal rods are super durable. Looks like they decided not to blow it up.
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So this is someone's idea of a "factory SBC shortblock"?
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I would think his tuning skills are helping it survive too!
Yeah I'd say so.
GM Crate engine rotating assembly and a stock 5.7 block.
Arp rod bolts.
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Seems like kind of a dumb test to me. I guess if you have nothing better to do why not. I suppose they make money off of people watching on You Tube.
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It's just an 010 block, they made millions of them. They didn't even fill the water jackets. Nothing special.
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He did it because of the internet comments about the old smallblock being fragile and it's a piece of junk.
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Now the LS fan boys will be saying they made 2000 on a junkyard block.
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