Timing Chain and Gears Included. Outside Diameter of Outer Spring (in). Number of Springs Per Valve.
Rocker Arm Nut Thread Size. Don't spend hours figuring out which pieces and parts you need to get what you want from your engine. Procomp Electronics has already done the work for you; our Top-End engine kits will save you the time and hassle of mixing and matching components yourself. These kits are specifically designed to deliver the performance you want, at a better price than purchasing the parts separately. Kits include: Fully assembled Procomp Electronics cylinder heads Intake manifold Valve covers I.Ntake manifold gaskets Roller rockers Guideplates Screw in studs Assembly Specifications Max Lift. While it is the exact same height, it features an open area under the plenum chamber. This provides for a flow of cooling air which keeps the temperature of the air/fuel charge lower thus producing more power and torque. The interior plenum and port design are identical to the qualifier series and will provide somewhat better overall power than the qualifier series due to the special air gap style design.
Intake Manifold Gasket Information Procomp Electronics intake manifold gaskets have Printoseal construction, which puts beads of special elastomers around the ports for extra sealing power. They also feature a non-metallic, rubber-fiber base material that resists gasoline and alcohol, while allowing engine builders to precision-trim around the intake ports. Cylinder Heads Suggested Parts Head Gaskets The head gasket we recommend for our 23deg.Heads used on 327/350/383/400 SBC engines without steam holes is Felpro #1003. On engines using the GM 400 block, or aftermarket blocks with steam holes, use Procomp Electronics PCE348.1006 or Felpro #1014. Push Rods Our aluminum 23deg. 100 (longer than stock) pushrods, Depending on the components used, it is possible that you may need pushrods shorter or longer than that so we recommend that you use an adjustable pushrod to dial in your rocker geometry and order pushrods to match. Spark Plugs All Procomp Electronics 23deg. SBC heads use standard 14mm. X 750 reach, 5/8 hex, gasket seat sparkplugs like NGK R5671A-7, Autolite 3924, Champion RC12YC, etc.
Remember that higher compression/ boost require a colder heat range sparkplug. Head Bolts / Studs Our 23 degree heads utilize standard head bolts or studs. Our part number for head bolts is PCE279.1002, and the head studs are PCE279.1001.
For the 15 degree heads, we recommend SM2451-15DEG. Headstud kit with 3/8 reduced shank on the studs between intake ports.
ARP also makes a head stud kit that is compatible with our 15deg. Exhaust Gaskets We recomend the use of our Exhaust gaskets # SM5120 or Fel-Pro #1405 on our 23 degree heads. On our 15 degree heads, use SM5121 or Fel-Pro #1409. Roller Rockers Information Procomp Electronics High Performance Aluminum Roller Rockers are extruded from 6061 T6 Aluminum. The larger needle bearing fulcrum can withstand valve spring loads up to 350lbs.
Ideally suited for use with flat tappet roller cams. They feature very precise valve operation, horse power increase of 10-15, increases valve train life dramatically, acceleration is more responsive, oil temp will run approximately 5-10 degrees cooler. The item "Chevy SBC 350 Straight Plug Solid FT Cylinder Head Top End Engine Combo Kit" is in sale since Wednesday, May 3, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts".The seller is "atracingworld-usa" and is located in Rialto, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, 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, Viet nam.