Material: 356 Alloy, T6
Chamber Volume: 68cc
Intake Runner Volume: 207cc
Intake Port location raised .100" over stock
Minimum Cross Section: 2.18 square inches MCSA
Exhaust Runner Volume: 125cc - high velocity
Exhaust Port Location Raised .080” (near stock location)
Valve sizes Intake 2.10" (45 degree seat, custom 5 angles blended)
Exhaust 1.650” (45 degree seat custom high velocity radius/blended)
Valve Guide Angles: Canted Valve angles
Intake 10.0 x 4.0 degrees
Exhaust: 9.5 x 3.0 degrees
Valve Guides: Bronze .502” od x 11/32” stems .570" shoulder
Valve Seat Inserts: Intake: 2.250” x 1.880 x 3/8 (Durabond 7000 series)
Exhaust: 1.680” x 1.430” x 3/8
Spark Plugs: relocated for efficient fast burn
¾ reach, 5/8 hex, washer seat (NGKBCP7ES)
Spring Pads: 1.570” od/.560” id
Valve Spring Height: 1.960” (with stock length valve)
Pushrods 5/16” or 3/8” (check required length)
Rocker Arm Studs 7/16” unc
Rocker Arm Type 7/16” stud mounted roller rockers (1.73 ratio)
Rating