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PROMAXX Performance Vortec 185cc Iron Cylinder Heads 2151

Cylinder Heads, Assembled, Cast Iron, 64cc Chamber, 185cc Intake Runner, Straight Plug, Chevy,Small Block,Pair

Estimated Ship Date: Tomorrow Would you rather pick it up? Select Location

  • The part PMX-2151 has an additional shipping charge of $8.00 per item due to its large size and/or weight.

Brand: PROMAXX Performance

Manufacturer's Part Number: 2151

Part Type: Cylinder Heads

Product Line: PROMAXX Performance Vortec 185cc Iron Cylinder Heads

Summit Racing Part Number: PMX-2151

Cylinder Head Style: Assembled

Cylinder Head Material: Cast iron

Cylinder Head Finish: Natural

Combustion Chamber Volume (cc): 64

CNC-Machined Combustion Chamber: No

Intake Runner Volume (cc): 185cc

Exhaust Runner Volume (cc): 60cc

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: Center and 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 goes one up with their Vortec iron cylinder heads. These iron heads offers performance at the right price and they're built in the USA! Popular with street/strip enthusiasts and circle track racers, PROMAXX Performance has designed these iron heads to work well on 350-383 applications. Vortec heads are available bare or assembled. Both feature screw-in studs and large diameter spring pockets plus, they both accept center bolt and perimeter bolt valve covers and are drilled for Vortec and carbureted intake applications.

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Make: CHEVROLET

Beginning Year: 1962

Ending Year: 1969

Engine Type: V8

Liter: 5.3

CID: 327

Engine Size: 5.3L/327

Engine Family: Chevy small block Gen I

Rocker Arm Mounting Style (application): Stud

Make: CHEVROLET

Beginning Year: 1967

Ending Year: 1969

Engine Type: V8

Liter: 4.9

CID: 302

Engine Size: 4.9L/302

Engine Family: Chevy small block Gen I

Rocker Arm Mounting Style (application): Stud

Make: CHEVROLET

Beginning Year: 1970

Ending Year: 1980

Engine Type: V8

Liter: 6.6

CID: 400

Engine Size: 6.6L/400

Engine Family: Chevy small block Gen I

Rocker Arm Mounting Style (application): Stud

Make: CHEVROLET

Beginning Year: 1996

Ending Year: 2000

Engine Type: V8

Liter: 5.7

CID: 350

Engine Size: 5.7L/350

Engine Family: Chevy small block Gen I

Rocker Arm Mounting Style (application): Stud

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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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