Dart SB Chevy Iron Eagle Engine Block - Includes BB Chevy Cam Bearing Sizing - Deck Height: 9.325", Cylinder Bore: 4.125", Main Diameter: 2.65"

The Dart Iron Eagle eliminates the compromises found in production blocks. Iron Eagle small-blocks are available in standard (9. 025") and tall-deck (9. 325") versions so you can select the crankshaft stroke and connecting rod length that's right for your combination. We also offer a choice of 350 or 400 main bearings to fit factory and aftermarket cranks. We raised the camshaft and spread the oil pan rails to provide extra clearance for stroker cranks. The versatile Iron Eagle block is the perfect starting point for a big-inch small-block project

you can build a 455ci small-block with Dart! We machine the Iron Eagle block to precise tolerances, eliminating the cost of expensive "blueprinting" a production block. Includes coated cam bearings, freeze plugs and dowels.

SPECIFICATIONS:

Material:

Superior iron alloy

Bore: 4. 00" & 4. 125"

Bore & stroke: 4. 185" x 4. 125" max recommended

Cam bearing bore ID: SBC

2. 00" BBC

2. 120" 50mm Roller Brg 2. 2819"

2. 2831"

Cam bearings: Special coated, grooved, w/3 oil holes

Cam Bearing O. S. + . 010", +. 020", +. 030"

Cam bearing press: . 002"

Camshaft position: Raised . 391"

Camshaft to Crank ? 4. 912"

Camshaft snout: SBC on all

Cam Drive: Timing chain, Gear drive & Belt drive for raised cam

Cam Plug: 2. 375" dia. cup plug

Cubic inch: 455" max recommended

Cyl. Wall Thickness: . 275" min @ 4. 185" bore

Deck Height: 9. 025" & 9. 325"

Deck Thickness: . 625" min.

Fuel Pump: Mechanical pump provision

Fuel Pump Pushrod: + . 200" long 5. 950" OA Dart# PR200FP

Freeze Plugs: Press in cup plugs

Lifter Bores: SBC . 8427"

. 8437"

Main bearing size: 2. 450" (350) 2. 650" (400)

Main bearing bore: (350) 2. 6405 2. 6415 (400) 2. 8405 2. 8415

Main cap press: . 004"

005"

Main caps: Steel

4 bolt #2, #3, #4 / 2 bolt frt & rear

Oil system: Wet or Dry Sump

Main Priority Oiling

Oil Pump shaft: BBC shaft with wet sump

Oil Filter: No provision

Oil Pan: Pan rails spread . 400" each side Oil Pan Gasket Fel Pro 1839

Rear Main Seal 350 main

std seal / 400 main

Fel-Pro# 2909

Serial No. Left front & main caps

Starter: Mounts on either side

Studs holes, Head: Blind holes

Timing chain/gears Must use raised cam components

Timing Cover: Can use stock cover / Mag w/fuel pump provision avail.

Torque Specs: 3/8" bolts

40 ft lbs

7/16" studs

75 ft lbs

7/16" bolts

65 ft lbs

1/2" studs

100 ft lbs

Weight: 195 lbs @ 4. 125" bore

Pit Stop USA offers Dart SB Chevy Iron Eagle Engine Block - Includes BB Chevy Cam Bearing Sizing - Deck Height: 9.325", Cylinder Bore: 4.125", Main Diameter: 2.65" 31122222 at low everyday prices. Be sure to check out all of our products from Dart Machinery including Dart Machinery Cast Iron Engine Blocks - Small Block Chevy.