SHP Iron Block SB Chevy

Name: SHP Iron Block SB Chevy
Brand: DART
SKU: 301-31161111
Price: 2299.99 USD
Availability: InStock

^$2,299⁹⁹

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Ships on Mar 03, 2027

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Small Block Chevy

Small Block Chevy
Bore: 4.000"
Rear Main Seal: 2-Piece
350 Main Journals

Specifications:
Material: Superior iron alloy
Bore: 4.000" (unfinished)
Bore/Stroke: 4.165" x 3.750" (max recommended)
Cam Bearing Bore ID: SBC 2.00"
Cam Bearings: Specially-coated & grooved with three oil holes
Cam Bearing OS: +.010", +.020", +.030"
Cam Bearing Press: .002"
Cam Journal OD: Standard SBC 1.869"
Cam Plug: 2-7/64" shallow cup
Cylinder Wall Thickness: .230" minimum @ 4.165" bore
Deck Height: 9.025"
Deck Thickness: .625" minimum
Fuel Pump: Mechanical pump provision
Fuel Pump Pushrod: Standard length
Freeze Plugs: Press-in cup plugs 1-5/8"
Lifter Bores: SBC .8430" to .8440"
Main Bearing Size: 2.450" (350)
Main Bearing Bore: 2.6405 to 2.6415 (350)
Main Caps: Class 35 iron, 4 bolt, center 3
Main Cap Register: Deep stepped register on each side (no need for dowels)
Main Cap Press: .005"
Main Cap Bolts: #1, #5 - 7/16" (2); #2, #3, #4 - 7/16" 3/8" splayed (2)
Oil System: Wet sump, main priority oiling (can use dry sump)
Oil Pump Shaft: 350 main = stock shaft (.481" OD)
Oil Filter: Standard SBC filter (uses 2-bolt filter adapter)
Oil Pan: Standard SBC oil pan
Rear Main Seal: 350 main, standard seal, 2-piece
Serial Number: On main caps and left front
Starter: Standard SBC
Stud Hole/Head: Blind holes
Timing Chain/Gears: Standard SBC components
Timing Cover: Can use stock stamped steel or plastic
Torque: 65 ft/lbs (7/16" bolts), 35 ft/lbs (3/8" bolts)
Weight: 175 lbs

Note:The lifter bosses in SHP blocks are .220" taller than the bosses in early-style blocks that were not designed for hydraulic roller lifters. If you are installing aftermarket lifters with link bars in an SHP block, the lifters must be designed for use in 1987-up or Bow Tie blocks.

Due to the additional length of these aftermarket tie-bar lifters, they must be installed in the block before the cylinder heads are installed.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Why waste time sourcing, cleaning, machining, and prepping an old core in hopes it will be usable when you could get a new, quality block without the expense of a full-race unit? Dart "SHP" Special High Performance Blocks enable you to affordably build a powerful, durable engine. Designed for high-performance and heavy-duty applications producing up to 600 horsepower, the SHP Block is an ideal starting point for hot rodders, drag racers, Circle Track competitors, off-roaders, and marine enthusiasts. .

One of the great provisions of the Dart SHP block is its ability to use OE hydraulic roller lifters. There are mounting bosses in the valley for a factory stamped steel spider, and the lifter bores are machined flat on top to accommodate the "dog bone" alignment bars used on OE hydraulic roller lifters. This allows an engine builder to take advantage of the fast acceleration and low maintenance of a hydraulic roller cam profile while using inexpensive stock-type lifters.

Features

Designed for compatibility with stock components
Virtually ready to assemble right out of the box after a final cylinder hone
Precision machined from high-nickel cast iron
Decks even and parallel within .002"
Siamese bores 4.000" OR 4.125" (unfinished)
Cylinder walls .230" minimum at 4.165"
Priority main oiling system (oil is directed to main bearings first, then to cam bearings)
Splayed 4-bolt center three main caps
Blind head bolt holes
OE bolt holes for starter, clutch ball, etc.
Uses stock timing cover
Provisions for stock roller lifters and cams
Tech Tip: Oiling System
Tech Tip: Roller Lifters