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PROMAXX Performance Series One Small Block Chevy Cylinder Heads 2169HR
Part Number: PMX-2169HR
PROMAXX Performance Series One Small Block Chevy Cylinder Heads
Cylinder Heads, 64cc, Assembled, Hydraulic Roller, Rect. Intake, Sq. Exhaust, 2.020/1.600 in. Valves, 0.6 in. Max Lift, Aluminum, Natural, Chevy, Pair
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Estimated Ship Date: Jan 15, 2027 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
2169HR
Part Type:
Product Line:
Summit Racing Part Number:
PMX-2169HR
Item Number:
4506816
Combustion Chamber Volume (cc):
64
Intake Runner Volume (cc):
185cc
Exhaust Runner Volume (cc):
72cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic roller
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
Combustion Chamber Style:
Heart
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.):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.600 in.
Damper Spring Included:
No
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Rocker Arm Studs Included:
Yes
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
Yes
Guideplate Pushrod Size:
3/8 in.
Valve Cover Mounting Style:
Perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Steel
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold as a pair.
Notes:
Steam holes can be drilled for 400 c.i.d. engines.
PROMAXX Performance Series One Small Block Chevy Cylinder Heads
PROMAXX Performance Series One small block Chevy cylinder heads are high-flowing heads at a great price. PROMAXX economical "As-Cast" aluminum versions feature ultra-smooth 356-T6 casting, precision machining, and an array of assembled options, as well as being available bare. Series One cylinder heads have the right stuff to perfectly fit your budget build with abundant power.
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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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