Jan 1, 2023 · The SB2 small-block is GM's most extensive package of hardcore components designed expressly for auto racing. GM engineers went all the way this time, designing a manifold, rocker covers and...

The Chevrolet Performance SB2.2 NASCAR racing head was designed to improve durability, simplify preparation procedures, and reduce the overall cost of building and maintaining a Small-Block Chevrolet racing engine.

Feb 8, 2017 · Scott Shafiroff is giving the classic Gen I small-block Chevy a new lease on life with the SB2.2 cylinder head. Check out this 440ci, 920-horsepower beast.

440/920HP Small Block Chevy SB2.2 Drag Race Engine Configured Your Way! Dyno Tested by Shafiroff Race Engines. HP: 920 @ 7900 RPM TQ: 650 @ 6600 RPM $23,950.

The Chevrolet Performance SB2 NASCAR racing head was designed to improve durability, simplify preparation procedures, and reduce the overall cost of building and maintaining a Small-Block Chevrolet racing engine.

Feb 14, 2025 · In 1998, Chevrolet introduced the SB2 NASCAR engine, marking a major milestone in racing history. Unlike its predecessors, which were modified versions of production small-block V8 engines, the SB2 was Chevrolet’s first-ever NASCAR engine designed from the ground up exclusively for stock car racing.

Mar 17, 2017 · How to Build a 916hp Chevy SB2 V-8 Using Modern Fuel Injection. From NASCAR To Bonneville: Here’s how modern fuel-injection systems helped Keith Dorton build a 916-horsepower SB2

Chevrolet Performance SB2.2 NASCAR Aluminum Cylinder Heads improve durability, simplify preparation, and lower the cost of building/maintaining a competitive small block race engine. "Mirror" intake ports are all angled toward the center of the engine, making these heads perfect for single 4-barrel applications.

Aug 20, 2007 · What are the pros & cons of a SB2 N/A setup? Big Inch (421/434), Small Inch (358/377) which would be better assuming the head is ported to match the set up...

Dec 19, 2002 · Chnaging the valve angle was essential in creating a shallow combustion chamber. Reducing the valve angle in a wedge-type cylinder head forces the incoming air/fuel mixture to make a sharper turn from the port entrance to the valve seat. GM Motorsports Technology Group engineers evaluated head designs with valve angles ranging from 23o to 10o.