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- 6.0L LS Turbo Shortblock - Seasoned GM Block & Callies Compstar 8-cwt
Description:
This short block is intended for light boost to achieve up to 1,100 crank horsepower.
In our opinion, a seasoned block that we have gone over with our CNCs is a better foundation than a new block new from GM. It certainly offers more value. We push these seasoned 6.0L blocks well over 1,000 hp with no problem. That's however way beyond the capabilities of the stock cast crank and powdered metal rods.
The Callies Compstar center counterweighted crank with stock stroke brings a lot to the party. It's increased stiffness and reduced harmonics minimize flexing thereby protecting the block, bearings and rods from excessive wear and fatigue. Get more details about this crankshaft in the video below.
We use Manley Extreme Duty Platinum dish pistons and forged H-beam rods to complete the rotating assembly. The rods are made with 4340 alloy. The pistons are made from 2168 alloy with wrist pins of 9310 alloy. The forgings are domestic and these parts are loaded with features.
These short blocks are quick-ship items. We usually have one either on the floor fully assembled, or have fully machined parts ready to assemble. Call us at 815-725-2727 with any questions or to place your order.
Want to hear from someone with one of our 6.0L short blocks in their car? Here's David Ankin, star of the History Channel TV show ToyMakerz:
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