King Alecular Pro Series Main Bearing Set - Standard - SB Chevy 305-350 - 1967-99 - Grooved Uppers Starter Heat Shield Valve stem holes are placed

Valve stem holes are placed behind the center to prevent air leaks during wheel-to-wheel racing

Boss 302 and 351 Windsor

6 in Length

Excellent cam for trucks

1968 Dodge Dart 270 CID 340 Naturally Aspirated GAS

King Alecular Pro Series Main Bearing Set - Standard - SB Chevy 305-350 - 1967-99 - Grooved Uppers Starter Heat Shield Valve stem holes are placedMain Bearing Set For General Motors 262, 267, 302, 307, 327, 350. Alecular (Racing Line) 1 2 groove. We are bearing specialists. King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that includes a wide range of engine bearings for automobiles, light duty and heavy duty trucks, marine,