Outdated Internet Browser Detected

It appears that the Internet Browser you are using to connect to SummitRacing.com is outdated and insecure. To continue to use SummitRacing.com, you must upgrade your browser to a newer, secure version. Use these links to help you upgrade your browser.

In-Store Pickup Location Close

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: Today 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.

Manufacturer's Part Number: 2151
Part Type: 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.

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.

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

Back To Results
Email this page Close
Close