C5R Bare Block

This is the ultimate race version of the aluminum LS block, which enjoys the state-of-the-art technology necessary to build an LS engine to over 440 cubic inches, and 900 horsepower! Our C5R race block has seen serious race time (including wins at LeMans, GT-S, and the 24 hours of Daytona). If you are building a 'big' small-block for your late model Camaro, Firebird, or Corvette, this is the aluminum block for you.
Premium 'hipped' and x-rayed 356-T6M aluminum block
Production oiling system
6-bolt SAE 8620 dowel located steel main bearing caps
SAE 4340 premium main cap fasteners
9.240 deck height
For use with LS1, LS6, LS2, L92, LS3 and LS7 cylinder heads
C5R spec, special material cylinder liners
Siamesed water jackets for larger bore size
4.117 finished bore
4.160 max bore
Standard camshaft location and bore sizes
100% CMM measured for accuracy
Completely 'blueprinted' and 'squared'
Includes 4340 premium head studs
AN O-ring plugs throughout
No provision for 'Active Fuel Management'
Capable of over 900 horsepower!