Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks 12480175

Name: Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks
Brand: Chevrolet Performance
SKU: NAL-12480175
Price: 3625.89 USD
Availability: OutOfStock
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Part Number: NAL-12480175

$3,625.89

Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks

Engine Block, Cast Iron, 4-Bolt Mains, 4.117- 4.155 in. Bore, 1-Piece Rear Main Seal, Chevy, Small Block, Each
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Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks 12480175

NAL-12480175

Not Yet Reviewed

Part Number: NAL-12480175

Estimated Ship Date: Feb 19, 2027

$3,625.89

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Estimated Ship Date: Feb 19, 2027 Would you rather pick it up?

Overview

Brand:

Chevrolet Performance

Manufacturer's Part Number:

12480175

Part Type:

Engines, Bare Blocks

Product Line:

Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks

Summit Racing Part Number:

NAL-12480175

Main Journal Type:

Chevy 350

Engine Block Material:

Cast iron

Engine Block Style:

OEM

Engine Block Deck Height:

Standard deck

Deck Height (in.):

9.025 in.

Cylinder Bore as Shipped:

4.117 in.

Cylinder Bore Diameter:

4.155 in.

Maximum Bore Diameter (in.):

4.155

Camshaft Location:

Standard

Engine Block Weight (lbs.):

196 lbs.

Main Bolt Style:

4-bolt

Main Caps Included:

Yes

Main Cap Material:

Nodular iron

Main Cap Fasteners Included:

Yes

Main Bearings Included:

Rear Main Seal Style:

1-piece

Finished Cylinder Bores:

Raised Cam Location:

Cam Bearings Included:

Freeze Plugs Included:

Remanufactured:

Quantity:

Sold individually.

Chevrolet Performance 350 C.I.D. Cast Iron Racing Bowtie Bare Engine Blocks

These Chevrolet Performance 350 c.i.d. cast iron racing Bowtie bare engine blocks are CNC-machined from raw castings. All traditional racing modifications are provided by the factory. The heart of these blocks starts with a 3.980-4.155 in. Siamese bore cylinder case. In addition, all galleries required for dry sump oil system operation are drilled and tapped for pipe. 8620 steel bearing caps are installed on all locations of the blocks. The intermediate main bearing caps have the outer 7/16 in. diameter studs on the inner locations, and 3/8 in. diameter straight bolts on the outer locations. The rear bearing cap is a 2-stud (7/16 in. diameter) configuration and utilizes a 2-piece rear seal design. After the installation of the steel bearing caps, the blocks are align bored.

Additional features include:

* Priority main oiling
* Enlarged lifter bosses
* Bearing cap inner bolts spread .210 in. to allow use of 2.65 in. diameter journal cranks on properly modified blocks
* Early model 2-piece rear main seals
* Sonic bore check (data provided)
* Use 1985 and earlier oil pans
* Enlarged cam bosses in front and rear allow use of larger bearings
* Use premium quality studs and 8620 200 steel splayed main bearing caps