Flo-Tek 101500 Bare S/B Chevy Aluminum Head, Angle Plug

Description

Has a standard port location for use with most intake and exhaust manifolds, Will accept both perimeter and center bolt valve covers, The 1.560” max spring pocket diameter gives you many valve spring options, Valve guides are compatible with all common valve materials and fuels, Features a 3/8” NPT coolant temperature probe port
Flo-Tek 101500 Bare S/B Chevy Aluminum Head, Angle Plug
Sku # 7221200
Mfr. Part # 101500
Condition
New
Brand
Flo-Tek
Sold
Each
Details
Notes
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 57533501or 57523501. 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 Fel-Pro 1205 style gaskets. Exhaust ports are square and work with Fel-Pro 1404 style gaskets.
Champion
271RC12YC
style 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.
Valve guides are machined for positive stop seals. Measure .540" OD where the seal is pressed on.
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 50542171 and washers 50542102 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.
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, performance cylinder head to build upon, check out these bare cylinder heads from FloTek. Features like fast-burn combustion chambers, high-velocity ports, large-diameter spring pockets, and rugged construction make these heads the obvious performance platform 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 238 CFM @ .600" lift on the intake and 181 CFM @ .600" 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. Fully assembled heads are also available for engines using flat-tappet cams up to .550" lift.
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
Intake flows 238 CFM @ .600” lift
Exhaust flows 181 CFM @ .600” lift
Accepts both perimeter and center bolt valve covers
1.560” max spring pocket diameter gives you many valve spring options
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
Machined for 3/8” screw-in rocker arm studs and guide plates (not 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)
California Customers: This part has been identified as emissions sensitive and can only legally be installed on race-use only vehicles, off-road-use only vehicles, or pre-1965 vehicles in the State of California in accordance with the California Air Resource Board (CARB) requirements. Once your order is placed you will be contacted by Speedway Motors within 2 business days so that you can certify that you will only use such parts on these types of vehicles in California.
Specs
Material Type
Aluminum
Sold in Quantity
Each
Finish
Natural
Cylinder Head Style
Bare
Spark Plug Style
Angle
Combustion Chamber Volume
64cc
Intake Port Shape
Rectangle
Exhaust Port Shape
Square
MFG. Part #
101500
Intake Valve Diameter
2.020
Exhaust Valve Diameter
1.600
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
I will be definitely purchasing another set of these heads!
Rated
by Go-Sik LLc on May 13, 2017
Summary:
I found these heads well built, and properly machined for use with a typical sbc build, I mounted them up in my mill and drilled them for a vortec intake. Engine runs awesome and there is plenty of material for porting. Definitely very happy with this purchase. Priced Right and better than a standard cast iron set.
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, 1.28x2.09 Inch
Edelbrock 7501 Performer RPM Air-Gap Small Block Chevy Intake Manifold
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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 69 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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