Holley

300581

Holley 300581 Cylinder Heads - SBC CYL HD RACE Cylinder Head Angled Spark Plug; 23 deg. Valve Angle; 2.10 in. Intake Valve Dia.; Shaft Rocker Arm Mounting

Cylinder Heads

Intake Ports Are -Raised- and Req. Mnfld PN[300-102/300-105] Or PN[9901-119]; Requires A Spark Plug w/A 0.75 in. Reach and A Flat Seat.;

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