Technical Specifications of...
Man O'War Cast Iron Blocks

Material: High density cast iron
Deck Heights: 8.200, 9.200, 9.500"
Deck Thickness: .600" minimum
Cam Bearings: Stock - can be bored to 60mm
Lifter Bores: Cross-feeds between pairs to maintain pressure
Bore: 3.990" (bore to 4.000") or 4.115" (bore to 4.125")
Cylinder Head Attachment: Stock plus 2 extra head bolts per cyl. (not req.)
Maximum Bore: 4.200" (470 c.i.d. with maximum stroke crank)
Water Jackets: Expanded for better cooling
Lubrication: Priority main oiling system
Filtration: Integral mount for spin-on filter
Oil Pan Rails: Stock Ford (“C” block requires use of 351 pan)
Crank Clearance: Can use up to 4.250" crank
Main Caps: Splayed billet steel, nodular iron, 4 bolt
Oil System: Has .500" feed; bosses for dry sump