This is a pair of BluePrint Engines small block Chevy aluminum cylinder heads, supplied fully assembled with valves, springs, retainers, locks, guide plates, studs, and stem seals. They have 195cc intake runners, 75cc exhaust runners, and 64cc combustion chambers, and they bolt on as a ready-to-install head set for hydraulic roller small block builds. Rocker arms and rocker nuts are not included.
Specifications:
- Type: Aluminum cylinder heads, fully assembled
- Platform: Small block Chevy (BluePrint Muscle Series)
- Sold as: Pair
- Combustion chamber: 64cc
- Intake runner: 195cc, rectangular port, standard location
- Exhaust runner: 75cc, square port, raised .500 in
- Valves: 2.02 in intake / 1.600 in exhaust, included
- Maximum valve lift: Up to .575 in
- Valve angle: 23 degree intake and exhaust
- Valve guides: Manganese bronze
- Valve seats: Chrome nickel, 3-angle machined
- Valve stem seals: Viton fluoroelastomer
- Valve springs: Dual springs, 295-305 lb open at 1.225 in, 115-125 lb closed at 1.800 in, 1.437 in outer spring OD
- Retainers and locks: Chromoly steel retainers, 7 degree locks
- Studs and guide plates: Studs (7/16 in nut thread) and guide plates for 5/16 in pushrods included
- Camshaft style: Hydraulic roller
- Oiling: Through pushrod
- Spark plug: Straight, .750 reach gasket, Vortec plug placement
- Valve cover mounting: Perimeter bolt, also accepts center bolt
- Accessory bolt holes: Drilled, 3/8-16 in
- Not included: Rocker arms and rocker nuts
- Warranty: 12-month limited
- Part number: H8002K
What's Included: One pair of assembled cylinder heads, each with intake and exhaust valves, dual valve springs, retainers, locks, guide plates, studs, and Viton valve stem seals. Rocker arms and rocker nuts are not included.
Compatibility: Built for small block Chevy engines running a hydraulic roller camshaft. The exhaust ports are raised .500 in versus OEM, so replacement or modification of OEM exhaust manifolds may be required. BluePrint also uses the H8002K head on several of its small block crate engines.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What is included with the H8002K cylinder heads?
The set is sold as a pair and is fully assembled with valves, dual valve springs, retainers, locks, guide plates, studs, and valve stem seals. Rocker arms and rocker nuts are not included.
What are the port and chamber sizes?
The heads have 195cc rectangular intake runners, 75cc square exhaust runners, and 64cc combustion chambers, with 2.02 in intake and 1.600 in exhaust valves.
Will my stock exhaust manifolds fit?
Possibly not. The exhaust ports are raised .500 in versus OEM, and BluePrint notes that replacing or modifying OEM exhaust manifolds may be required.
Are these heads for a roller camshaft?
Yes. They are listed for a hydraulic roller camshaft and use through-pushrod oiling with guide plates for 5/16 in pushrods.
