SKU: 69945940476

GM Performance Chev LSX376 V8 Cast Iron 4.065" Bore Production Block # 19417352

Sale price$3127.50 Regular price$3475.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

GM Performance Chev LSX376 V8 Cast Iron 4.065" Bore Production Block # 19417352Engine Block, LSX Bowtie, Bare, Cast Iron, 6 bolt Main Bolt Style, 9. 260 in. Standard Deck, Chevrolet, Each Main Journal Type: Chevy LS Engine Block Material: Cast iron Engine Block Style: OEM Engine Block Deck Height: Standard deck Deck Height (in.): 9. 260 in. Cylinder Bore as Shipped: 4. 065 in. Engine Block Weight (lbs.): 225 lbs. Main Bolt Style: 6 bolt Main Caps Included: Yes Main Cap Material: Billet steel Main Cap Fasteners Included: Yes Main

Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.260 in. Standard Deck, Chevrolet, Each

Main Journal Type:
Chevy LS
Engine Block Material:
Cast iron
Engine Block Style:
OEM
Engine Block Deck Height:
Standard deck
Deck Height (in.):
9.260 in.
Cylinder Bore as Shipped:
4.065 in.
Engine Block Weight (lbs.):
225 lbs.
Main Bolt Style:
6-bolt
Main Caps Included:
Yes
Main Cap Material:
Billet steel
Main Cap Fasteners Included:
Yes
Main Bearings Included:
No
Rear Main Seal Style:
1-piece
Finished Cylinder Bores:
Yes
Raised Cam Location:
No
Cam Bearings Included:
No
Freeze Plugs Included:
Yes
Quantity:
Sold individually.

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69945940476

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vivian johnson
Grantham, US
★★★★★ 5
Very good product
Style: 36 Sqft 80 mil
Easy to install, very sticky. Will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
S
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Samantha
Port Orchard, US
★★★★★ 5
Works well and doesn’t break the bank
Style: 36 Sqft 80 mil
Awesome value for low budget wound deadening. Used this under the floor mat on my international 4300 and there is a noticeable difference in sound inside the cab.
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Reviewed in the United States on May 5, 2026
M
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Miguel Rojas
Waukegan, US
★★★★★ 5
It works
Style: 36 Sqft 80 mil
Great product
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Reviewed in the United States on May 9, 2026
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James Ping
Carnegie, US
★★★★★ 4
Good product
Style: 18 Sqft 80 mil
Good sound deadening for the money..
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Reviewed in the United States on March 23, 2026
A
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Easy to install
Style: 18 Sqft 80 mil
Easy to work with, sticks well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026

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