how much horsepower can stock lt1 block handle

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09-23-2011, 01:41 PM

96WS6TRANSAM

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Location: orlando fl

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how much horsepower can stock lt1 block handle

does any body know how much horsepower a stock lt1 block can handle ( not the internals just the block )

09-23-2011, 02:04 PM

Feenix

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Re: how much horsepower can stock lt1 block handle

I wouldn't worry until you're around 1k-1500 rwhp from my understanding.

09-23-2011, 02:26 PM

RamAir95TA

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Re: how much horsepower can stock lt1 block handle

With the proper prep over 1000HP easy.

09-23-2011, 03:36 PM

punkslapper

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Re: how much horsepower can stock lt1 block handle

Quote:

Originally Posted by RamAir95TA

With the proper prep over 1000HP easy.

+1 its all in the prep work

09-23-2011, 07:08 PM

Injuneer

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Re: how much horsepower can stock lt1 block handle

I've seen a stock 4-bolt main LT1 block (stock straight configuration, not splayed, with upgraded bolts and billet caps) produce 1,125HP at the flywheel, in a blown 383 running 20+ # of boost. The almost 4,000# race weight 30th SS convertible ran 9.04 at 156MPH. When he decided that wan't enough HP he pulled the engine, tore it down and sold the block, in excellent condition, to another friend of ours.

At that point he opted for a Dart Iron Eagle SBC block for his 1,350HP build.