DART 31345235 Race Series Ford 351 Windsor Aluminum Block – 4.125" Bore, 9.200" Deck

With pressed-in dry sleeves, upgraded oiling and steel 4-bolt main caps, Dart’s Aluminum blocks have the features that Ford racers need to build powerful and reliable engines.
Premium alloy: Dart Aluminum blocks are cast from RMR cast Aluminum alloy for superior strength and integrity; Extended cylinder barreLS2 for improved piston support; Four deck heights: 8.200” (302), 8.700” (stroker 302), 9.200” (351C) and 9.500” (351W) allow displacements up to 450 cubic inches; Siamesed cylinders: Standard 4.000” or 4.125” cylinders can be safely bored to 4.165” diameter. Ductile Iron sleeves and extra thick walLS2 prevent cracking and produce excellent ring seal; Steel 4-bolt main bearing caps are standard. Three center caps have splayed outer bolts for maximum strength; rear cap uses standard one piece seal; Upgraded oiling system has been completely redesigned with a low restriction priority main oiling system with rear external oil pump feed; Dual crossovers allow oil flow to be metered with restrictors for roller lifter cams and/or roller rocker arms to reduce oil flow and windage; Reinforced head bolt bosses are blind tapped to prevent leaks and produce accurate torque readings. Extra thick decks prevent head gasket leaks; Parts kit included (PN 32000004)

• Industry: Automotive
• Cylinder Bore Diameter: 4.125 IN
• Deck Height: 9.500 IN
• Engine Block Weight: 85-109 LBS
• Freeze Plug Type: Screw-in
• Camshaft Lifter Bore: 0.8747 - 0.8757 IN
• Main Bearing Type: Ford Cleveland
• Main Cap Type: Steel
• Material: RMR Cast Aluminum Alloy
• Rear Main Seal Type: 1-Piece
• Engine Type: ICE
• Engine Block Material: RMR Cast Aluminum Alloy
• Make - Web: Ford
• Engine - Web: 351 Windsor
• Emissions Code: 3