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Seller Store speedway_motors
(294115) 99.5%,

Location: Lincoln, Nebraska
Ships to: US,
Item: 387313591665

Return shipping will be paid by:Seller
Returns Accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
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Flo-Tek:Flo-Tek
Type:Cylinder Heads
Material:Aluminum
Manufacturer Part Number:102505
Finish:Natural
California Prop 65 Warning:True

Intake port volume measures 180cc, Accepts both perimeter and center bolt valve covers, Valve guides are compatible with all common valve materials and fuels, The 64cc fast-burn combustion chambers are designed to deliver big power, Features a standard port location for use with most intake and exhaust manifolds Flo-Tek 102505 Assembled S/B Chevy Aluminum Head, Straight Plug Sku # 7222000 Mfr. Part # 102505 Condition New Brand Flo-Tek Sold Each Details Info Breathe new life into your small block Chevy with a set of FloTek aluminum cylinder heads from Speedway Motors. If you’re looking for a budget-conscious, yet proven, cylinder head for bolt-on performance gains, check out these completely assembled cylinder heads from FloTek. Features like fast-burn combustion chambers, high-velocity ports, large diameter valve springs, and rugged construction make these heads the obvious performance upgrade for small block engines. FloTek cylinder heads are designed for optimal airflow and performance on SBC engines with a 4.0″ bore. Large 180cc intake runners, with an improved short-side radius, provide a rush of air into the cylinders, increasing torque. The key ingredient for big power, however, is the 64cc fast-burn combustion chambers. Air flows in and out of these chambers via a 3-angle valve job. A 62cc exhaust runner gets the spent gasses out. All told, these heads will flow 232 CFM @ .500″ lift on the intake and 173 CFM @ .500″ lift on the exhaust. FloTek aluminum cylinder heads arrive packed full of standout features at an incredible value. At 20 lbs. apiece, the state-of-the-art aluminum alloy casting is a great base for any mild SBC build. FloTek cylinder heads are built with bronze valve guides, high nickel valve seats, milled and drilled ends for accessory bracket mounting, and are available in straight or angle spark plug configurations. Assembled heads add stainless valves, 1.46″ diameter springs, chromoly retainers, Viton seals, pushrod guide plates, and 3/8″ screw-in rocker studs – for a complete bolt-on performance package! Maybe you are a bit more involved in your engine build – no problem! Pick up a set of bare FloTek heads, also available with or plugs, to build out with the valves, springs, and hardware of your choice. Features Heads are sold EACH Standard port location for use with most intake and exhaust manifolds 180cc intake port volume 62cc exhaust port volume 64cc fast-burn combustion chambers deliver big power 2.02” intake/1.60” exhaust valves 3-angle valve job enhances flow at low-to-mid lifts Swirl polished & undercut stainless steel valves Intake flows 232 CFM @ .500” lift Exhaust flows 173 CFM @ .500” lift Accepts both perimeter and center bolt valve covers Single 1.46” diameter valve springs w/ inner damper Suitable for mild hydraulic roller camshafts up to .550” lift 7 degree lightweight chromoly retainers and keepers Hardened steel spring cups for durability High nickel powdered metal valve seats provide optimum heat transfer and wear characteristics Manganese bronze valve guides reduce friction Valve guides are compatible with all common valve materials and fuels Viton positive valve seals 2-piece hardened steel pushrod guide plates for use with hardened pushrods 3/8” chromoly screw-in rocker arm studs included Blocked exhaust heat riser manifold crossover port 3/8” NPT coolant temperature probe port Designed for 4″ bore small block Chevy engines (302/327/350/383) Application This Part Fits These fully assembled heads are ready to run and are a great match to flat tappet camshafts. They’re compatible with solid (mechanical) flat tappet or hydraulic flat tappet cams with up to .550” lift. The valve springs (single with flat wire inner damper) have a seat pressure of 120 lbs. Valves are +.100″ long and must be used in conjunction with aftermarket aluminum roller rocker arms to clear valve springs used which are 1.46″ diameter. The valve springs have 130 lbs. @ 1.750″ installed height and 310 lbs. of open pressure at 1.20” (coil bind is at 1.160”). Installation Tips Stock stamped steel rocker arms will not clear 1.437” diameter valve springs on these heads. Must use aftermarket roller tip or full roller rocker arms if using large diameter springs. We recommend or . Heads feature valve cover rails that are raised 3/8” so you can use roller rockers with short valve covers (note – some factory A/C brackets may have interference issues). Rocker arm studs should be torqued to 45 ft.-lbs. Intake port measures 2-1/16” x 1-1/8” which works with style gaskets. Exhaust ports are square and work with style gaskets. Champion 271RC12YC spark plugs (14mm thread, 5/8″ hex, flat gasket seat, .750″ reach) are what we recommend as a starting point. This is a straight plug head (not angled plug). Ignition timing should be between 35 to 38 degrees total. Set the timing with the vacuum advance hose disconnected and rev the engine up until the mechanical advance is fully in, then set it at 35 degrees to start with. You can experiment with more timing later to see if the engine runs better at closer to 38 degrees, but we don’t recommend exceeding 38 degrees on most applications. Heads are not drilled for steam holes that are required on SBC 400 engines. Recommend head gasket for 4” bore engines is the Fel-Pro 1003 style gasket. Head bolts such as and washers are recommended. Torque to 50-65-80 ft.-lbs., with 75 ft.lbs. torque on the bottom. Use Permatex 80631 style sealant on the threads. Specs Material Type Aluminum Sold in Quantity Each Finish Natural Cylinder Head Style Assembled Spark Plug Style Straight Combustion Chamber Volume 64cc Intake Port Shape Rectangle Exhaust Port Shape Square MFG. Part # 102505 Intake Valve Diameter 2.02 Exhaust Valve Diameter 1.6 Spring Diameter 1.45 Stud Diameter 0.38 Notes Center to centers for passenger side are 4.80″ and 5.45″. Drivers side is 1.98″ and 3.63″ Intake Runner Volume Range 180cc – 189cc Exhaust Runner Volume Range 60cc – 69cc Combustion Chamber Volume Range 60cc – 69cc Exhaust Runner Volume 62cc Intake Runner Volume 180cc Reviews Great bang for the buck. Had to do some deburing on threads Rated by Hyper Henry on December 19, 2021 Summary: Nice head for the price. Yes, I recommend this product. Great heads! Rated by Tio shawno on June 08, 2021 Summary: Awesome quality. If you do the math w/given flow chart for intake and exhaust, these heads should make at least 380ish hp..at .500 lift. Yes, I recommend this product. Great heads for hot rod on street Rated by Billy on December 23, 2020 Summary: Used on sbc 350 build for c 10 pick up. These heads really helped throttle response and sound of engine. Cons: Requires different spark plugs Pros: Light weight Yes, I recommend this product. Affordable Rated by Mike on April 30, 2020 Summary: Everything Went great until I had To install hardware on passenger Side of the motor extreme difficulty boasting out the air conditioning brackets Yes, I recommend this product. Great value Rated by Hot rod Mike on June 11, 2019 Summary: Great value heads. Make sure you use the suggested rockers. No your wont work. Sure you can grind them have the break and start all over again. Yes, I recommend this product. Related Items / Suggested Parts Flo-Tek 101505 Assembled S/B Chevy Aluminum Head, Angle Plug Flo-Tek 102500 Bare S/B Chevy Aluminum Head, Straight Plug Fel-Pro P1003 S/B Chevy 265-400 Steel Ring Head Gasket 4.166 Inch Bore Fel-Pro 1205 S/B Chevy Intake Manifold Gaskets, 1.28×2.09 Inch Edelbrock 7501 Performer RPM Air-Gap Small Block Chevy Intake Manifold Tech Support We’re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.

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