Cylinder Head - Magnum Street - Assembled - 2.250 / 1.880 in Valves - 290 cc Intake - 112 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Sold as a Pair - Brand: Air Flow Research - Part Number: 3640
Specifications
|
Brand
|
Air Flow Research
|
|
Part Number
|
3640
|
|
Product Line
|
Magnum Street
|
|
Assembled/Bare
|
Assembled
|
|
Chamber Volume
|
112 cc
|
|
Plug Angle
|
Angle
|
|
Intake Runner Volume
|
290 cc
|
|
Exhaust Runner Volume
|
135 cc
|
|
Intake Port Shape
|
Rectangle
|
|
Intake Port Location
|
Stock
|
|
Intake Port Height
|
2.030 in
|
|
Intake Port Width
|
1.830 in
|
|
Exhaust Port Shape
|
Round
|
|
Exhaust Port Location
|
Raised
|
|
Exhaust Port Raised Distance
|
0.375 in
|
|
Exhaust Port Height
|
1.770 in
|
|
Exhaust Port Width
|
2.010 in
|
|
Intake Valve Size
|
2.250 in
|
|
Intake Valve Included
|
Yes
|
|
Intake Valve Material
|
Stainless
|
|
Intake Valve Length
|
5.500 in
|
|
Exhaust Valve Size
|
1.880 in
|
|
Exhaust Valve Included
|
Yes
|
|
Exhaust Valve Material
|
Stainless
|
|
Exhaust Valve Length
|
5.450 in
|
|
Valve Spring Included
|
Yes
|
|
Intended Camshaft Style
|
Hydraulic Roller
|
|
Maximum Lift
|
0.725 in
|
|
Maximum RPM
|
6700
|
|
Valve Spring Diameter
|
1.550 in
|
|
Valve Spring Number
|
Dual
|
|
Valve Spring Damper
|
No
|
|
Valve Spring Retainers Included
|
Yes
|
|
Valve Spring Retainer Material
|
Chromoly
|
|
Valve Locks Included
|
Yes
|
|
Valve Lock Material
|
Chromoly
|
|
Valve Lock Angle
|
10 Degree
|
|
Valve Seal Included
|
Yes
|
|
Valve Seal Style
|
Positive Stop
|
|
Valve Seal Material
|
Viton
|
|
Rocker Studs Included
|
Yes
|
|
Rocker Stud Size
|
7/16-20 in
|
|
Pushrod Guide Plate Included
|
Yes
|
|
Guide Plate Pushrod Size
|
3/8 in
|
|
Valve Guide Included
|
Yes
|
|
Valve Guide Material
|
Bronze
|
|
Perimeter Mount Valve Cover
|
Yes
|
|
Valve Seat Included
|
Yes
|
|
Intake Valve Seat Material
|
Ductile Iron
|
|
Exhaust Valve Seat Material
|
Ductile Iron
|
|
Valve Seat Finish
|
Machined
|
|
Combustion Chamber Finish
|
CNC Machined
|
|
Intake Runner Finish
|
CNC Machined
|
|
Exhaust Runner Finish
|
CNC Machined
|
|
Intake Valve Angle
|
24 Degree
|
|
Exhaust Valve Angle
|
15 Degree
|
|
Material
|
Aluminum
|
|
Color
|
Natural
|
|
Finish
|
Natural
|
|
Quantity
|
Pair
|
