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Summit Racing® Iron LS Engine Blocks SUM-150105

Summit Racing SUM-150105 - Summit Racing® Iron LS Engine Blocks

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Engine Block, Cast Iron, 6-Bolt Mains, 4.030 in. Diameter Bore, Chevy, LS Gen III, Each

  • This part is shipped via truck freight, additional shipping charges will apply. Multiple truck freight parts on an order may increase the shipping amount.

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Summit Racing SUM-150105-30 - Summit Racing® Iron LS Engine Blocks


Estimated Ship Date: 9/22/2014 (if ordered today)

This Substitute Part is similar to the item you requested.

Brand: Summit Racing
Manufacturer's Part Number: SUM-150105
Summit Racing Part Number: SUM-150105

Main Journal Type: OEM
Engine Block Style: Stock/OEM standard deck
Deck Height (in): 9.240 in.
Cylinder Bore as Shipped: 4.030 in.
Engine Block Material: Cast iron
Main Bolt Style: 6-bolt
Main Caps Included: Yes
Main Cap Material: Cast iron
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: Yes
Freeze Plugs Included: Yes
Quantity: Sold individually.
Notes: Refer to Head Bolt Warning under the Instructions tab to verify correct head bolts. Clearance for up to a 4.00 in. stroke with H-beam rods.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

The LS engine design has incredible potential, but once you start bolting on big superchargers, an aluminum block just can't contain all that power. These Summit® iron LS blocks have all of the same potential, but their cast iron construction is capable of withstanding high-horsepower applications. These seasoned blocks feature a finished 4.030 in. bore and a 9.240 in. high deck. They also feature 6-bolt main caps and a 1-piece rear main seal, and include cam bearings and freeze plugs.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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