DART SBC CHEV IRON EAGLE BLOCK4.125 BORE 400 MAIN STD DECK

Description

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. Dart 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!

Features:

• standard 9.025″ and
  tall deck 9.325″
  versions allow for greater
  versatility.
• Raised
  camshaft .391″
  (4.912″ camshaft to
  crankshaft centerlines)
  provides more clearance for
  stroker cranks and eliminates
  need for fragile small base
  circle cams. Option for .434
  raised cam also available.
• Relocated oil pan
  rails are spread .400″
  per side (.800″ wider
  than stock) to increase
  crank/rod clearance and
  reduce windage losses.
• Siamesed cylinders:
  Standard 4.000″ or
  4.125″ cylinder can be
  safely bored to 4.185″.
  Extra thick walls prevent
  cracking and produce
  excellent ring seal.
• Oil pan bolt holes are
  relocated in line with main
  caps to eliminate
  interference with rotating
  assembly.
• Main
  bearing bores are available
  for 350 (2.45″) and 400
  (2.65″) bearings allow
  engine builders to maximize
  crankshaft strength and
  minimize friction.
• 4
  bolt billet steel main caps
  have splayed outer bolts
  minimize bearing bore
  distortion.
• Dual
  starter mounts allow starter
  to be mounted on either side
  of block for chassis and oil
  pan clearance.
• Front
  and rear external oil inlets,
  crossover and restrictor
  provisions to simplify
  plumbing with external pump.
• Scalloped outer
  water jacket walls improve
  coolant flow around the
  cylinder barrels to equalize
  temperatures.
• Coated
  cam bearings, freeze plugs
  cluded.