| | Building on our heritage, the R3 race block family offers the latest in design technology along with the options to meet your specific needs.
All of these blocks feature:
· Process-controlled castings utilizing high strength cast iron and a computer controlled stress relieving process
· 100% CNC machining with full statistical process control
· Thick deck surface and 6-bolt cylinder head attachment (48° blocks) for improved sealing and reliability
· Rough bore at 3.980" with various options that provide over-bore capacities up to 4.220" (in Siamesed-Bore versions)
· Various options that provide deck height potentials of 8.900" to 9.560"
· Tappet angles in both 59° (stock) and 48° (improved valvetrain geometry) are available
· Thicker main webbing and pan rail for improved rigidity
· 4-bolt mains in ductile iron and billet
· 318/340 main journal size
· Machined for pre-Magnum head oiling, as well as motor mounts
9.200" deck, Siamese, 4.220" overbore, 4-bolt iron cap design, 59° tappet angle, 318/340 journal size | 
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