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Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31375235
Part Number: DRT-31375235
Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks
Engine Block, Cast Iron , 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Main Seal, Ford 351, Small Block, Each
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Summit Racing™ SPC Ford 351W Engine Block SUM-150205
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Estimated Ship Date: Monday 10/19/2026
Overview
Brand:
Manufacturer's Part Number:
31375235
Part Type:
Product Line:
Summit Racing Part Number:
DRT-31375235
UPC:
807501054491
Main Journal Type:
Ford 351 Cleveland
Engine Block Material:
Cast iron
Engine Block Style:
OEM
Engine Block Deck Height:
Standard deck
Deck Height (in.):
9.500 in.
Cylinder Bore as Shipped:
4.125 in.
Cylinder Bore Diameter:
4.125 in.
Maximum Bore Diameter (in.):
4.185
Camshaft Location:
Standard
Main Bolt Style:
4-bolt
Main Caps Included:
Yes
Main Cap Material:
Steel
Main Cap Fasteners Included:
Yes
Main Bearings Included:
No
Rear Main Seal Style:
1-piece
Finished Cylinder Bores:
No
Raised Cam Location:
No
Cam Bearings Included:
No
Freeze Plugs Included:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Block bores are undersized to allow for piston set up. Steel 4-bolt main caps with splayed outer bolts on 2, 3 and 4, with 2-bolt main caps on 1 and 5. These blocks use SVO style cam bearings. See the “Required Parts” tab for block parts kit that contains coated cam bearings, brass freeze plugs, head, front cover, and bell housing dowels.
Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks
Dart SHP blocks are tailored to the most popular performance and racing applications. So, when you want more than stock blocks can provide, the strong reliable design and plentiful features of Dart SHP special high performance Ford engine blocks offer the perfect base foundation to start your build.
Key features of SHP small block Ford bare blocks are:
* Brand new precision machined cast iron block
* Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures
* Priority main oiling system directs oil to the main bearings first for more dependable lubrication
* Available with 302 (8.200 in.) deck height or 351 (9.500 in.)
* Provisions for OE roller lifters, dog bones and spider
* Siamese bores 4.000 in. or 4.125 in. (unfinished) with extra thick cylinder walls
* Extra thick decks ensure reliable head gasket seal
* Blind tapped head bolt holes to prevent water leaks
* Steel 4-bolt main caps on #2, 3 and 4 with splayed outer bolts. (2-bolt main caps on #1 and 5)
* Can use most stock components and accessories
Applications
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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