Notes: Performer; chamber size 64cc; single; must use hardened pushrods; street legal; when using stock rockers; must use .100 in. longer than stock pushrods; must use choke kit PN if using hot air choke carb and Performer intke; do not use on eng. w/less than 4in. bore; exc w/cam less than .450in. valve; recommend Edelbrock gasket PN head; PN intake; PN exhaust; 50-state street emissions legal;
Notes: Street legal performer. Chamber size 60cc. Single. 2.02" Intake valves. Requires head bolt bushings pn and OE bolts or head bolt kit pn will not accept rail rockers recommend Edelbrock gasket pn head. Pn intake. Pn exhaust 50-state street emissions legal. Quantity per car: 2.
Notes: Performer RPM. Chamber size 87cc. Single. Street legal. Recommend FelPro gasket. Pn head. Pn intake. Pn exhaust recommend Edelbrock gasket pn head. Pn intake. Pn exhaust. Quantity per car: 2.
Notes: Performer Center bolt; Chamber Size 60cc Single; Must Use Hardened Pushrods; Street Legal; When Using Stock Rockers; Must Use .100" Longer Than Stock Pushrods Recommend Edelbrock Gasket PN Head; PN[GM10159409] Intake; PN Exhaust; 50-State Street Emissions Legal; Quantity per car: 2
Notes: Performer RPM. Chamber size 72cc. Single. NHRA legal. Not for sale or use on pollution controlled motor vehicles. FE 428. Recommend rocker shaft stud kit pn for better rocker shaft retention rec. Edelbrock gasket pn head. FelPro pn intake. Pn exhaust. Quantity per car: 2.
Notes: Performer centerbolt. Chamber size 60cc. Single. Must use hardened pushrods. Street legal. When using stock rockers. Must use .100" Longer than stock pushrods rec. FelPro gasket pn head. Pn[GM10159409] intake. Pn exhaust 50-state street emissions legal. Quantity per car: 2.