Availability

- In Stock Items. Ships Today. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (18) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Brand
- Chevrolet Performance (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fleece Performance (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Engine
Engine Block Material
- A-356 aluminum (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Cast iron (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Engine Block Style
- Aftermarket (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- OEM (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Deck Height (in.)
- 9.240 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 9.251 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 9.260 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Cylinder Bore Diameter
- 4.125 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Maximum Bore Diameter (in.)
- 4.185 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4.250 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Engine Block Weight (lbs.)
- 150 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 225 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Finished Cylinder Bores
- No (2)
- Yes (1)
Freeze Plugs Included
- No (2)
- Yes (1)
Filter Options
- New Product (1)

2 Results Found For "rear"

Showing In Stock Items. Show All 18 Items.

Individual Parts

Part Groups

Results 1 - 2 of 2

Fleece Performance Freedom Series LTR Aluminum Engine Blocks

Fleece Performance Freedom Series LTR is a premium aluminum Gen V LT standard deck race block designed for high performance applications. Cast from a proprietary 356 T-6 aluminum ingot, the Freedom Series LTR engine blocks are engineered with precision and designed for durability to deliver unmatched strength and compatibility with OEM LT accessories. Reinforced from top to bottom, the blocks are built for maximum performance with added features, like cross bracing in the lifter valley, maximized crankshaft saddle radius, and a 40 percent larger footprint for the main cap contact surface to the skirt wall. Whether you're upgrading for competitive racing or seeking peak performance, the Fleece Performance Freedom Series of engine blocks ensure reliability and excellence in every detail, making them a perfect choice for serious enthusiasts and professionals alike. Features: * Cross-braced lifter valley: -- Provides added structural integrity and individual drain backs for improved reliability * Heavy-duty deck thickness: -- A robust 0.750 in. deck thickness for enhanced durability * Enhanced design: -- Additional stock to the front and rear valley walls for increased strength -- Minimum 0.625 in. skirt wall thickness -- Complete reinforced exoskeleton combined with Hot Isostatic Pressing (HIP) ensures the highest quality casting available * Billet main caps: -- Billet construction ensures stability and precision fitment -- Utilizes 8740 alloy M10 main studs and side bolts along with dowels on the inner studs of the block for superior clamping and reliability -- Exclusive domed main cap design provides maximum crankshaft support * Maximized crankshaft saddle radius: -- Optimized for performance under high-stress conditions * Lightweight: -- Weighs only 120 lbs. with main caps -- Strong yet lightweight solution * Priority oil system: -- Oil rifling provides priority oil feed to critical bottom-end components -- Reduces heat, wear, and risk of failure * Ductile iron sleeves: -- Durable wear-resistant surface with improved shock absorption Engine block is shipped with: * Durabond GMP-9 cam bearings * LTR rear cover, rear cover gasket, and hardware * Plug kit * Precision ground 1018/1020 steel cam thrust plate * Transmission dowel pins * Oil galley barbell plug * Rear main seal

Not Yet Reviewed

$6,750.00

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

5.0 out of 5 stars ( 1 )

$5,038.95

—

$5,565.20

1

Page 1 of 1