DART Iron Eagle Raised Cam, Spread Pan Rail Race Block
9.025 Deck, pelase specify bore and cam journal size
- 4.125" or 4.00" Bore
- 350 or 400 Main Journal Size
- SBC Cam or BBC Cam
Designed for large stroke, big displacement engines.
No longer compromise with a small base circle cam and the problems associated with large strokes into short blocks!
Will support OVER 2000 hp!
DART offers two series of SBC Race Blocks; the DART Little M and the DART Iron Eagle. This Iron Eagle Block is the strongest SBC block made! Features include billet steel main caps on all 5 mains, .400" spread oil pan rails for increased clearance, raised camshaft location for increased clearance (no more small base circle cams), and an overbore capacity of 4.185". This is the block of choice for big stroke, large displacement small blocks looking for the strongest, easiest to use block. All DART blocks require the same preparation - Final sizing to your components. The bores are .010" under advertised size (3.990" on 4.0" blocks for example), the main line is occasionally tight, the lifter bores and deck need to be checked.
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.
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: .875” min. (can machine to 8.800”)
Fuel Pump: Mechanical pump provision
Fuel Pump Pushrod: + .200” long 5.950” OA
Freeze Plugs: Press in cup plugs
Lifter Bores: SBC .8427” - .8437”
Main bearing size: 2.450” (350) 2.650” (400)
Main bearing bore: (350) 2.6401” / -.001” (400) 2.8401” / -.001”
Main cap press: .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
Rear Main Seal: 350 main - std seal / 400 main - Fel-Pro# 2909
Serial No. Left front & main caps
Starter: Mounts on either side
Studs, Mains: #1 7/16” (2) #2, #3, #4 7/16” (2) 7/16” splayed bolts (2) Rear 1/2” (2)
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: 1-4 7/16” studs - 75 ft lbs
1-4 7/16” bolts - 65 ft lbs
Rear 1/2” studs - 100 ft lbs
Weight: 205 lbs @ 4.00” bore
This product was added to our catalog on Wednesday 19 January, 2005.