Chevrolet Performance LSX Bowtie Engine Blocks

Chevrolet Performance LSX Bowtie engine blocks are designed for the advanced competition engine builder. They feature Siamese cylinder bores and a semi-finished deck height. The blocks can accept a maximum stroke of 4.250 in., a maximum bore of 4.250 in., and can support displacements of 454 cu. in. or more. LSX Bowties feature cast iron construction with an orange powdercoat finish. They accept all Gen III and IV LS-style cylinder heads, crankshafts, camshafts, and other components. Order the model with deck height and other options needed for your application.

Additional features and specs include:

* Front oil feed lines that can be plugged or restricted for mechanical flat tappet or mechanical lifter applications
* Can be safely machined to 9.200 in. deck height
* 1054 billet steel 6-bolt main bearing caps
* 6-bolt cylinder head bolt pattern
* Cam bores that can be machined to accept 60mm roller bearings
* Can be machined for larger diameter lifters
* External oil pump feed at the rear
* Added 7th transmission bolt hole to work with early-style GM transmissions
* Can accept a front motor plate for racing use
* Threaded freeze plugs that can be used for external heaters or coolers
* Windowed main bulkhead

More From This Category

MANLEY Piston, 1.550 in. Compression Distance, 4.060 in. Bore Size, Flat Top, Left, For Chevrolet SB, Each

MANLEY Piston, 1.550 in. Compression Distance, 4.060 in. Bore Size, Flat Top, Left, For Chevrolet SB, Each

$197.40

MANLEY Valve, Race Master, Exhaust, 1.6 in. Head Dia, 0.3136 in. Stem Dia, 5.05 in. Length, For Chevrolet SB, Each

MANLEY Valve, Race Master, Exhaust, 1.6 in. Head Dia, 0.3136 in. Stem Dia, 5.05 in. Length, For Chevrolet SB, Each

$51.07

MANLEY Piston, 1.313 in. Compression Distance, 86 mm Bore Size, 2cc Dome, For Mitsubishi EVO X 08-Up, Each

MANLEY Piston, 1.313 in. Compression Distance, 86 mm Bore Size, 2cc Dome, For Mitsubishi EVO X 08-Up, Each

$357.36

COMP Cams Rocker Arm, High Energy, 1.75 Ratio '62-'84 For Chevrolet 194-292 w/ 3/8 in. Stud, Each

COMP Cams Rocker Arm, High Energy, 1.75 Ratio '62-'84 For Chevrolet 194-292 w/ 3/8 in. Stud, Each

$15.31

COMP Cams Cam/Lifters/Timing, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 262/270, Lift .462/.47, For Chrysler 273-360

COMP Cams Cam/Lifters/Timing, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 262/270, Lift .462/.47, For Chrysler 273-360

$784.57