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LS1 Long Block, Dyno'd at 480 hp with Carb

LS1 Long Block, Dyno'd at 480 hp with Carb


The LS1 created a revolution when first introduced as the new "Corvette engine". Its aluminum block and heads shed weight for improved vehicle handling and fuel efficiency. A leap in performance was achieved largely through a far better head design and electronically controlled coil-over-plug ignition.

We put together a great platform for someone looking for an aluminum LS with serious power that won't break the bank. As a long block, it can be finished with an almost unlimited range of custom touches in an LS swap. Alternatively, it can be a direct replacement for an LS1 that has grown old and tired.

Check out the dyno video below!

Shop LS1 Dyno from Borowski Race Enterprises on Vimeo.

This build features a seasoned GM block, 853 casting heads and crank that we tuned up on our CNC machines. Since the heads are so important in any LS, we gave them extra love on our Newen CNC seat & guide machine. Our CNC valve job includes unshrouding the valves, cutting all the seat angles and bowl blending. Check out the photos above to see just what this machining looks like. In previous testing, we saw a 25hp bump in power from this head work alone on an LS1.

We used Scat rods and Auto Tec flat top pistons to complete the rotating assembly. The heart of any engine is the cam and this one sports one of our customer hydraulic roller designs from COMP.

 Comp Cam Bronze Rocker Trunnions Melling Performance Oil Pump
ARP Cam Bolts ARP Head Bolts ARP Balancer Bolt
Clevite H & HN Bearings  Billet Timing Set OE Lifters
All Cometic Gaskets Newen CNC Valve Job Scat H-Beam 4340 Rods
Comp Pushrods ARP Main Studs Forged Autotec Pistons


This long block is available for immediate shipment as-is meaning no intake or electronics.  Alternatively, we can dress it up any way you want.  

Please call at 815-725-2727 with any questions.

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