Victor Big-Block Chrysler Cylinder Heads for Chrysler B/RB V8 Engines Installation

Designed for race applications using 1961-1978 Chrysler B 361, 383 and 400 c.i.d. and RB 413, 426 wedge and 440 c.i.d. engines; Victor cylinder heads are ideally suited for larger displacement and high RPM applications and feature 75cc Dual-Quench design combustion chambers to facilitate high compression ratios. All Victor Chrysler heads have 100cc exhaust ports; #77919 & #77929 have 280cc intake ports while #77939 & #77949 have larger Max Wedge style 290cc intake ports. The intake ports are raised .650” and the exhaust ports are raised .250” to improve flow. The intake port is also extended .950” to eliminate the need for intake manifold spacers. The exhaust flange has been extended out .300” in order to provide dry exhaust bolt/stud holes. Exhaust bolt holes feature helicoil thread inserts for added strength and durability. Valve cover rails have also been raised to provide increased rocker arm clearance. Spark plugs have been re-oriented to a 15- degree angle to improve combustion efficiency.

Other features include phosphor-bronze valve guides, interlocking, ductile iron valve seats and premium one-piece, stainless steel, high-flow 2.200” intake and 1.810” exhaust valves (Valves included with #77929 & #77949 only). Due to the increased intake runner width, offset intake rockers are required. The amount of offset will vary depending on deck height, lifter type and camshaft base circle. IMPORTANT: Before porting the cylinder head intake runner, fit the cylinder head to the block and verify pushrod clearance to the cylinder head. At times, the cylinder head pushrod area may need to be relieved for appropriate clearance providing the correct offset rocker is used. Before you begin this process, you need to install the cam & lifters that will eventually be used in this engine. After the process has been completed, you need to let your head porter know the pushrod area of the intake port wall could be limited and care needs to be taken in this area so you don’t machine through the intake runner surface. Heads will accept standard exhaust rocker arms. These heads use the stock intake, exhaust, and valve cover bolt hole patterns, and stock rocker shafts, for compatibility with original equipment, as well as aftermarket parts.

NOTE: Complete cylinder heads are assembled with intake and exhaust valves, but will require installation of valve springs (matched to the camshaft being used), valve spring seats, retainers, and locks. Bare cylinder heads will have valve guides and seats installed, but will require final guide sizing and a valve job to match the valves you will be using.

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