Key Features of...
Merlin III Cast Iron Blocks

• Made from high density cast iron
• 9.800" or 10.200" deck height with .600" minimum thickness
• Clearanced for 4.375" stroker crankshaft (H-beam steel rods (9.800" deck) or 4.750" clearance for 10.200" deck
• Integral mount for spin-on oil filter
• Available with 4-bolt nodular or splayed billet caps
• Can be bored to 4.625" maximum
• Water jackets expanded for better cooling
• Standard Chevy cam location and cam bearings
• Priority main oiling system for maximum reliability
• Solid pan rails with stock spacing
• OEM starter, fuel pump and engine mounts
• Blind tapped head bolt holes for extra integrity
• 100% Compatible with OEM Parts
• Indexed Lifter Bores
• Compatible with all Chevy Mark IV components
• Stepped oiling (.584" - .500" - .437")
• Extra head bolt bosses in valley to accommodate special racing heads)
• Oil drain-back in valley lubricates distributor gear
• Blind holes in valley for screen (no risk of cam binding)
• Manufactured to QS-9000 specs on two CNC centers (eliminates tolerance stacking common to production lines)