how much horsepower can stock lt1 block handle

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Sep 23, 2011 | 01:41 PM

96WS6TRANSAM

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Joined: Oct 2010

Posts: 25

From: orlando fl

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 )

Sep 23, 2011 | 02:04 PM

Feenix

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Joined: Feb 2005

Posts: 346

From: ohio

Re: how much horsepower can stock lt1 block handle

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

Sep 23, 2011 | 02:26 PM

RamAir95TA

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Joined: Sep 2001

Posts: 4,152

From: Woodstown, NJ

Re: how much horsepower can stock lt1 block handle

With the proper prep over 1000HP easy.

Sep 23, 2011 | 03:36 PM

punkslapper

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Joined: Jun 2011

Posts: 24

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

Sep 23, 2011 | 07:08 PM

Injuneer

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Joined: Nov 1998

Posts: 71,094

From: Hell was full so they sent me to NJ

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.