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Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy SUM-162112
Part Number: SUM-162112
Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy
Cylinder Heads, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevy, Small Block, .525 in. Lift Max, for Flat Tappet Cam, Pair
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Estimated Ship Date: Monday 11/9/2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
SUM-162112
Part Type:
Product Line:
Summit Racing Part Number:
SUM-162112
Item Number:
1356875
UPC:
190861095830
Combustion Chamber Volume (cc):
64
Intake Runner Volume (cc):
200cc
Exhaust Runner Volume (cc):
70cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic flat tappet
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.020 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.525 in.
Outside Diameter of Outer Spring (in.):
1.430 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
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:
Yes
Guideplate Pushrod Size:
5/16 in.
Valve Cover Mounting Style:
Perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
23
Exhaust Valve Angle:
23
Valve Guides Included:
Yes
Valve Guide Material:
Phosphorous bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold as a pair.
Notes:
The larger intake ports on these heads will not accommodate stock or low rise style intakes. Please see the Recommend Parts tab for compatible intake manifolds. Does not include location for temperature sender. Installed valve springs are for flat tappet camshafts.
Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy
Don't sacrifice quality for a low price--get both with our Summit Racing™ 64cc aluminum cylinder heads for small Chevy. The lightweight heads are cast from A-356 aluminum alloy and have 200cc intake ports, 64cc combustion chambers, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have 2.02 in. intake and 1.60 in. stainless steel exhaust valves, valve springs, 7 degree valve locks, 3/8 in. rocker arm studs, and 5/16 in. guideplates.
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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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