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PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads 2171

PROMAXX Performance 2171 - PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads

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Cylinder Head, Freedom, Aluminum, Assembled, 72 cc Chamber, 185 cc Intake Runner, Straight Plug, Chevy, Pair

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  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Brand: PROMAXX Performance

Manufacturer's Part Number: 2171

Part Type: Cylinder Heads

Product Line: PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads

Summit Racing Part Number: PMX-2171

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Cylinder Head Finish: Natural

Combustion Chamber Volume (cc): 72

CNC-Machined Combustion Chamber: No

Intake Runner Volume (cc): 185cc

Exhaust Runner Volume (cc): 62cc

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

Intake Valve Diameter (in): 2.020 in.

Exhaust Valves Included: Yes

Exhaust Valve Diameter (in): 1.600 in.

Valve Springs Included: Yes

Maximum Valve Lift (in): 0.575 in.

Outside Diameter of Outer Spring (in): 1.270 in.

Damper Spring Included: Yes

Retainers Included: Yes

Retainer Material: Steel

Locks Included: Yes

Lock Style: Stock

Valve Stem Seals Included: Yes

Rocker Arm Studs Included: Yes

Rocker Arm Nut Thread Size: 3/8-24 in.

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

Valve Guides Included: Yes

Valve Guide Material: Manganese bronze

Valve Seats Machined: Yes

Valve Seat Machine Style: 5-angle

Valve Seat Material: Ductile iron

Steam Holes Drilled: No

Oiling Style: Through pushrod

Machined for O-Ring: No

Heat Crossover: No

Quantity: Sold as a pair.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

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PROMAXX Performance Freedom Series small block Chevy cylinder heads offer exceptional quality at an unbelievable price. They are manufactured from high-quality aluminum and assembled with the finest components. PROMAXX Performance Freedom Series small block Chevy cylinder heads feature one-piece stainless steel intake and exhaust valves, enhanced intake runners, and performance valve springs with steel retainers. They are available in straight or angle plug designs. Horsepower costs money. With Freedom Series small block Chevy cylinder heads, PROMAXX Performance offers you the opportunity to bolt on the power that you've been looking for, at the price you want!

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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