Ford / Lotus Twin Cam Engine Block

• Lotus Twin Cam
• Ford Kent 1500

• Bore 3.228"-3.226" (81.99mm-81.94mm) semi-finished
• Lifter bore .5155"-.5145" (Later Crossflow Type)
• Lower clutch housing bolt holes reinforced
• Center main designed for upper and lower thrust for more precise end float setting
• Material Cast iron
• Bore Spacing 3.780”
• Block Deck Height (out of box) 7.900”
• Head Bolt Size 7/16-14 UNC
• Head bolts Main Bolt configuration 2 bolt main caps 7/16-14 UNC
• Main Bearing Bore Size 2.2702” – 2.2710”
• Main Cap Material Nodular cast iron main caps
• Main Cap Fasteners 7/16-14 UNC (torque spec. 70 lb-ft) ARP recommended torque value
• Cam Bearing Bore Size 1.6895” - 1.6905”
• Cam Bearing I.D. 1.5615” – 1.5620”
• Oiling System Wet sump oiling system
• Rear Seal Type Rear engine cover mounted 1 piece rear seal