RHS 12046 Small Block Chevy Aluminum Cylinder Head, 23 Deg, 72cc/220cc
350 Chevy Small Block V8, 400 Chevy Small Block V8, Bare Cylinder Head Style, Aluminum, Natural
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220cc Intake Runners & 72cc Chambers
2.020" IN. & 1.600" EX. Valve Sizes
Single Bare Aluminum Head
Angled Spark Plug Holes
Pro Action Small Block Chevy Aluminum Heads
These heads deliver significant gains in both power and torque for all Small Block Chevrolet applications - right out of the box. Pro Action SBC Aluminum Heads are the perfect choice for a variety of performance engines, including street rod, muscle car, oval track and drag racing applications. Standard features include a multi-angle Serdi valve job, cast aluminium construction, multi-angle intake and radiused exhaust valve seats for up to 5% more airflow than the competition. Advanced port/runner/chamber design and modified water jackets for optimal performance & added reliability. Valve springs up to 1.550" and all standard rocker arms and valve train components are accepted.
Advanced port/runner/chamber design & modified water jacket for improved durability, optimal performance & added reliability
Standard features include multi-angle intake & radiused exhaust valve seats for up to 5% more flow than the competition
Offered w/ 180cc, 200cc, 220cc & 235cc intake runners w/ 64cc or 72cc combustion chambers to fit your exact needs
Bare or fully assembled w/ premium COMP Cams components
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Q & A
Tim talks about the new Edelbrock powder coated cylinder heads and provides a little history on Federal Mogul heads.
Tim shows off our aluminum cylinder heads for 348-409 Chevys.
In part 2, you will read about the Generation 4 small block series of V8s that share the same platform as the Generation 3 discussed in part 1.
Trying to decide which power plant to use in your latest project? Here's a quick guide of modern V8 engines for hot rodders to consider.
Illustration showing the various styles of engine heads you may encounter on the Small Block Chevy engine.
Engine Cylinder Numbers
Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.