Flotek 290-6058 290cc Cylinder Head Assembled, For Chevrolet Big Block Mark IV
Fitment and Product Information. Aluminum 290cc Cylinder Head – Assembled, Solid Roller, For Chevrolet Big Block Mark IV. Flotek’s 290cc big block Chevy cylinder heads with 112cc combustion chambers are recommended for moderate street or street/strip BBCs with displacements up to 509 cu. Operating at or below 6,500 rpm. It may be necessary to check clearance and slightly modify some domed aftermarket pistons due to the efficient heart-shaped combustion chamber on these heads (most of the newer designed dome profiles will clear). Flotek recommends removing material from the piston and not the cylinder head, as the combustion chamber shapes are very critical to flowaltering the cylinder head can unfavorably affect flow and power performance. Flotek’s medium-sized 290cc oval port cylinder heads are designed for 3/8 in. Pushrods with 0.120 in. Combustion Chamber Volume (cc): 112. Intake Runner Volume (cc): 290cc. Exhaust Runner Volume (cc): 135cc. Cylinder Head Style: Assembled. Cylinder Head Material: Aluminum. Intake Port Shape: Rectangular. Intake Valve Diameter (in): 2.300 in. Cylinder Head Finish: Natural. 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: Oval. Exhaust Port Location: Raised. Spark Plug Style: Angle. Intake Valves Included: Yes. Exhaust Valves Included: Yes. Exhaust Valve Diameter (in): 1.880 in. Valve Springs Included: Yes. Maximum Valve Lift (in): 0.750 in. Outside Diameter of Outer Spring (in): 1.620 in. Damper Spring Included: Yes. Number of Springs Per Valve: Dual. Retainer Material: Chromoly steel. 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: 7/16-20 in. Rocker Arms Included: No. Rocker Arm Nuts Included: No. Guideplate Pushrod Size: 5/16 in. Valve Cover Mounting Style: Perimeter bolt. Accessory Bolt Holes Drilled: Yes. Intake Valve Angle: 24/4. Exhaust Valve Angle: 15/4. Valve Guides Included: Yes. Valve Guide Material: Manganese bronze. Valve Seats Machined: Yes. Valve Seat Machine Style: 3-angle. Valve Seat Material: Powdered metal. Steam Holes Drilled: No. Oiling Style: Through pushrod. Machined for O-Ring: No. WARNING : This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer. The item “Flotek 290-6058 290cc Cylinder Head Assembled, For Chevrolet Big Block Mark IV” is in sale since Monday, January 13, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Other”. The seller is “wundercarparts” and is located in United States. This item can be shipped to United States, Canada, United Kingdom, Australia, Mexico, Germany, Japan, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.
- Interchange Part Number: FTC_290-6058
- Manufacturer Part Number: 290-6058
- Brand: Flotek
- Warranty: Unspecified Length
- UPC: 850134007655