Intake Basic Operating RPM Range. 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. PCE 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 PCE cylinder heads Intake manifold Valve covers Intake manifold gaskets Roller rockers Guideplates Screw in studs Assembly Specifications Max Lift. This is the utlimate street manifold for 396, 427, 454 or 502 big block engines. It features a raised plenum area that allows air to pass under the plenum, producing a cooler intake charge with a resultant increase in power and torque output. Uses same gaskets recommended for above manifolds. Intake Manifold Gasket Information PCE 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 Due to the wide combustion chamber needed to fit around the large 2.250/ 1.880_ valves, we recommend our PCE348.1004 MLS head gaskets. 041_ thick, and fit bore sizes as large as 4.540_ on all Mark IV and VI blocks, as well as aftermarket blocks. Felpro 1017 gaskets will also work with these head/ block combos. To install our BBC heads on Mark V blocks, you will need to use our SM5233L and SM5233R Elite Series MLS head gaskets.
Alternatively, you can use Victor Reinz # 4918(R) & #4923(L) head gaskets on Mark V blocks with our heads. Spark Plugs Our heads require the use of 14mm. X 3/4_ reach 5/8_ hex gasket seat sparkplugs. Some recommended plugs are; NGK BCPR6ES or R5671A-7, Champion RC12YC, Autolite AR3923 or AR3924. Remember these are for mild street engines.
Higher compression or boost requires colder sparkplugs! Head Bolts / Studs Due to the raised +. 625_ exhaust port location on our heads, +. 100_ longer bolts / studs are needed next to each port.Use our PCE279.1005 head stud Kit. If you already have a standard BBC head stud kit and are just looking for the 8 +.
These heads should be torqued to 65ft. Using high pressure moly lube or 70ft. Exhaust Gaskets Our BBC heads utilize a 1.88_ x 1.88_ square exhaust port. This exhaust port requires specific gaskets.
Our PCE355.1003 gaskets are made of re-useable copper, or if you prefer paper, use our pn# SM5123. Felpro also offers gaskets that work with our heads as # 1410. WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. UNLOCK / SAVE / ENJOY. Earn points to climb tiers and enjoy benefits such as access to special offers and discounts, advance notice of events and promotions and more.Everyone starts with Red Status and can rise through Bronze, Silver, Gold, Platinum, Black and Vibranium. As you ascend, you become entitled to more valuable privileges. To see how your points are tracking, just login to Your Account.
A RETURN AUTHORIZATION is required prior to sending back any items. Actual product may vary from the picture(s) provided. Unless otherwise specified in our description, our parts are not approved for CARB applications or other smog certifications. Please check the regulations in your state before purchasing performance and aftermarket components. We cannot mark merchandise values below value or mark items as'gifts' - US and International government regulations prohibit such behavior.
All pictures displayed in our auctions are for illustration purposes only. All descriptions are provided in the best of our knowledge. While all care is taken, any errors or omissions in the item details is unintentional. We will do everything in our control to get your package to you right and fast, but ultimately we cannot be held responsible for lost, stolen or damaged packages. By purchasing this product you are agreeing to the terms and conditions contained herein.
Thank you very much for interest, we appreciate your business. Therefore, please read the description carefully and understand your application before purchasing this item; as it may not suit your application. Please note: high performance parts are not direct replacement parts for OEM parts, and may not fit your application as original OEM parts, and may require slight modifications depending on the intended purpose of some applications.