Boost Ready - 6.0L LS Long Block - $12,270


Business Seller - Borowski Race Engines, Inc.
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Looking for some serious power at a great price? Look no further! This 6.0L LS long block is designed to handle up to 1,000 hp. It is an upgraded version of the long block used for our 645 hp naturally aspirated LS. Both use seasoned GM 6.0L blocks that we have re-machined on our CNCs to far tighter than the original GM tolerances. In this boost ready build, we use a forged Callies Compstar center-counterweighted crank for additional strength and stiffness along with the same Manley H-beam rods. In this case, the Platinum Series pistons are switched from flat top to dish to complete the short block. This drops the compression ratio making it pump gas friendly under boost.

The COMP hydraulic roller cam is designed for boost and brings maintenance-free operation. The exquisite CNC port work we do on the RHS aluminum heads provides great airflow with bronze-bushed rockers for reliability and durability. A FAST LSXR intake manifold can easily handle the intended boost and adds a great look to your engine. It's paired with a FAST Big Mouth throttle body assuring that this baby can get the air to those heads.

This long block as a complete engine is rated at 600 hp without boost, as it is giving up compression compared to its 645 hp rated, naturally-aspirated sibling. Externally, the two long-block builds appear identical. We would of course be happy to build either into a complete engine if that's what you want.

The price includes everything as shown from oil pan to the lifter valley plate and GM valve covers along with an NA break-in session on our dyno using our intake manifold, fuel rails, etc. Give us a call at 815-725-2727 to discuss your specific needs. We have a range of options including packages with the turbo, engine management & serpentine systems as well as the transmission. This set up can also be ordered as a short block.

1 These engines are not pollution compliant and are intended for transportation use only in pre-pollution controlled vehicles.
2 All BRE engines are individually dyno tested and tuned. Atmospheric and other variations can cause results to vary +/- 2% from advertised ratings. Customers will be supplied with video of their engine's dyno along with the dyno and build sheets.
3 Please read the warranty policy posted on our website:

For more details on the benefits of a center counter-weighted crankshaft, watch this video:

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About The Seller

Borowski Race Engines, Inc.
Member Since October 2008
1545 Mound Rd
Joliet, IL 60436
Show phone number
(815) 725-2727

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