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Summit Racing™ Vortec Cast Iron Cylinder Heads for Small Block Chevy 350 SUM-151120
Part Number: SUM-151120
Summit Racing™ Vortec Cast Iron Cylinder Heads
Cylinder Head, Vortec, Cast Iron, Assembled, 64cc Chamber, 171cc Intake Runner, Small Block, Each
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Overview
Brand:
Manufacturer's Part Number:
SUM-151120
Part Type:
Product Line:
Summit Racing Part Number:
SUM-151120
Item Number:
8243578
UPC:
190861337947
Combustion Chamber Volume (cc):
64
Intake Runner Volume (cc):
171cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast iron
Camshaft Style:
Hydraulic roller/Hydraulic flat tappet
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
1.940 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
Square
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.500 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.525 in.
Outside Diameter of Outer Spring (in.):
1.260 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Umbrella
Rocker Arm Studs Included:
Yes
Rocker Arm Nut Thread Size:
3/8 in.-24
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Centerbolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
23
Exhaust Valve Angle:
23
Valve Guides Included:
Yes
Valve Guide Material:
Cast iron
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Finish:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Machine work must be done to accommodate guide plates.
Summit Racing™ Vortec Cast Iron Cylinder Heads
Vortec cylinder heads are known for cracking in different locations and can be costly to repair or replace. Our new Vortec cylinder head castings alleviates cracking issues and has an upgraded valve spring package allowing for the use of hydraulic roller or flat tappet camshafts up to .525″ lift.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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