Speedmaster PCE281.1755 Chevy SBC 350 Vortec 180cc 64cc Straight Plug Cast Iron Cylinder Head

The Speedmaster PCE281.1755 is a high-performance bare cylinder head designed for Small Block Chevy 350 Vortec engines. Featuring a durable cast iron construction with a 23-degree valve angle, this head delivers excellent flow characteristics with 180cc intake runners and 64cc combustion chambers. The straight spark plug configuration provides versatility for various engine builds.

Key Specifications:

• 180cc intake runner volume for improved airflow
• 64cc combustion chamber size
• 23-degree valve angle design
• Straight spark plug holes (14mm x 0.750" reach, 5/8" hex, gasket seat)
• Standard valve sizes: 2.020" intake, 1.600" exhaust (both +0.100" length)
• Accepts up to 2.050" intake valves with minimal machining
• Dual intake manifold bolt patterns: conventional and Vortec

Installation Notes:

• Head Gaskets: Use Felpro #1003 for 327/350/383/400 SBC engines without steam holes; use Speedmaster PCE348.1006 or Felpro #1014 for GM 400 blocks or aftermarket blocks with steam holes
• Intake Gaskets: Use Felpro #1255 for Vortec manifolds or Speedmaster PCE349.1002/Felpro #1266 for conventional manifolds
• Pushrods: Typically requires +0.100" longer-than-stock pushrods; use adjustable pushrods to verify proper rocker geometry before ordering final pushrods
• Spark Plugs: Compatible with standard 14mm x 0.750" reach plugs like NGK R5671A-8

This bare cylinder head is sold individually and does not include valves, springs, or other valvetrain components. Ideal for engine builders seeking a cost-effective performance upgrade for Small Block Chevy applications.