Speedmaster®
Chevy BBC 454 Hyd FT Cylinder Head Top End Engine Combo Kit
Specs
| Brand: | Speedmaster |
| Part Number: | PCE435.1067 |
| Part Type: | Cylinder Head Combo |
| Product Line: | Hydraulic Flat Tappet |
| Camshaft Included: | No |
| Intake Manifold Included: | Yes |
| Fuel Delivery Style: | Carbureted |
| Intake Material: | Aluminum |
| Intake Finish: | Satin |
| Carburetor Quantity: | One |
| Intake Style: | Single plane |
| Intake Basic Operating RPM Range: | 3,000-7,500 |
| Intake Manifold Height: | 6.060 in. |
| Intake Manifold Model (descriptive): | PCE - Shootout Series |
| Timing Chain and Gears Included: | No |
| Lifters Included: | No |
| Gaskets Included: | Yes |
| Cylinder Head Style: | Assembled |
| Cylinder Head Material: | Aluminum |
| Cylinder Head Finish: | Natural |
| Combustion Chamber Volume (cc): | 119 cc |
| CNC-Machined Combustion Chamber: | No |
| Intake Runner Volume (cc): | 320 cc |
| CNC-Machined Intake Runner: | No |
| CNC-Machined Exhaust Runner: | No |
| Intake Port Shape: | Rectangular |
| Intake Port Location: | Standard |
| Exhaust Port Shape: | Rectangular |
| Exhaust Port Location: | Raised |
| Spark Plug Style: | Angle |
| Comp. Valve Job: | No |
| Intake Valves Included: | Yes |
| Intake Valve Diameter (in): | 2.250 in. |
| Exhaust Valves Included: | Yes |
| Exhaust Valve Diameter (in): | 1.880 in. |
| Intake Valve Angle: | 24 deg. |
| Exhaust Valve Angle: | 15 deg. |
| Valve Springs Included: | Yes |
| Outside Diameter of Outer Spring (in): | 1.450 in. |
| Damper Spring Included: | Yes |
| Number of Springs Per Valve: | Dual |
| Retainers Included: | Yes |
| Retainer Material: | Chromoly steel |
| Locks Included: | Yes |
| Lock Style: | 10 degree |
| Valve Stem Seals Included: | Yes |
| Valve Stem Seal Style: | Positive stop |
| Rocker Arms Included: | Yes |
| Rocker Arm Studs Included: | Yes |
| Rocker Arm Nuts Included: | Yes |
| Rocker Arm Nut Thread Size: | 7/16 in. |
| Guideplates Included: | No |
| Guideplate Pushrod Size: | 3/8 in. |
| Pushrods Included: | No |
| Valve Covers Included: | Yes |
| Valve Cover Material: | Cast aluminum |
| Valve Cover Finish: | Polished |
| Valve Cover Mounting Style: | Perimeter bolt |
| Accessory Bolt Holes Drilled: | Yes |
| Valve Guides Included: | Yes |
| Valve Guide Material: | Bronze |
| Valve Seats Machined: | Yes |
| Valve Seat Machine Style: | 3-angle |
| Valve Seat Material: | Ductile iron |
| Steam Holes Drilled: | No |
| Oiling Style: | Through pushrod |
| Machined for O-Ring: | No |
| Heat Crossover: | No |
| Cylinder Head Bolts Included: | No |
| Quantity: | Sold as a kit. |
Description
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
Screw in studs
Assembly Specifications
Max Lift: .550
Coil Bind: .740
Intake Install: 130lbs @ 1.8
Exhaust Install: 130lbs @ 1.8
Closed Sear Pressure: 110lbs
Open Seat Pressure: 300lbs
Intake Manifold Information
These manifolds for Big Block Chevys are a worthy companion to our phenomenally successful single plane small block racing manifold. Designed for serious performance big block applications, they feature nitrous bosses, dual distributor holddowns, four corner water ports, and are available for both rectangular or oval port cylinder heads. Rectangular port size at the gasket flange is 1.69-inches wide by 2.31-inches tall, which can be opened up to match the gasket and/or larger port cylinder heads.
Runner size is effective for 468 to 540 cid engines.
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. These gaskets are .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. ARP #135-3703 12pt. Head bolts, and #235-4303 Head studs work too. If you already have a standard BBC head stud kit and are just looking for the 8 +.100_ studs, use our PCE279.1006 or ARP # 235-4306. These heads should be torqued to 65ft.lbs. using high pressure moly lube or 70ft.lbs. using 30wt. oil.
Please consult your fastener manufacturer for their specific recommended torque values.
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.