Engine Blocks

Chevrolet Performance LS6 Valley Cover 12577927 This LS6 Valley Cover eliminates the two rear valve cover PCV hose connections as well as the PCV hose and PCV valve. Improves crankcase ventilation and decreases the quantity of oil and contaminants that...

Chevrolet Performance LSX 9.240" Deck Iron Bare Block 19417353 - 4.185" Bore Features: CNC Machined Cast Iron Block Siamese Cylinder Bores 6-Bolt Billet Main Caps 9.240" Deck Height 4.185" Finished Bore Max Horsepower 1500+  Note:...

Chevrolet Performance LSX 9.240" Deck Iron Bare Block 19417352 - 4.065" Bore Features: CNC Machined Cast Iron Block Siamese Cylinder Bores 6-Bolt Billet Main Caps 9.240" Deck Height 4.065" Finished Bore Max Horsepower 1500+  Note:...

Chevrolet Performance LSX 9.720" Deck Iron Bare Block 19417354 - 3.880" Bore Features: CNC Machined Cast Iron Block Wet or Dry Sump Capability Siamese Cylinder Bores 6-Bolt Main Caps Tall Deck 9.720" Semi-Finished Deck Height 3.880"...

Chevrolet Performance LSX 9.260" Deck Iron Bare Block 19417351 - 3.880" Bore Features: CNC Machined Cast Iron Block Wet or Dry Sump Capability Siamese Cylinder Bores 6-Bolt Main Caps 9.260" Semi-Finished Deck Height 3.880" Finished Bore (4...

Chevrolet Performance Gen V LT1/LT4 Aluminum Bare Block 19431901 Features: GEN V LT1/LT4 Aluminum Block with Iron Sleeves Includes Oil Squirters 6-Bolt Main Caps 9.240" Deck Height 4.065" Finished Bore   Note: Ocean Freight is...

Chevrolet Performance 6.2L LS3/L92 Aluminum Bare Block 12729604 Replacement block for L9H, L94, LS3, L99, L92. Features: 319-T5 Aluminum Block with Iron Sleeves 6-Bolt Main Caps 9.240" Deck Height 4.065" Finished Bore Tested to over 500...

GM LS Engine Plug Kit w/ Oil Galley Plug 54252 Like 54251 except comes with oil galley plug.

LSXceleration GM LS Engine Plug Kit 54251 *Does not include oil diverter barbell

Chevrolet Performance LS Gen IV Valley Cover 12570471 - NON AFM Includes gasket, bolts and O-Rings.  

Mahle Clevite H-Series Main Bearings For Dart LS Next Block Clevite H-Series bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines. H-Series bearings have a...

Mahle Clevite H-Series Main Bearings For Dart LS Next Block Clevite H-Series bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines. H-Series bearings have a...