Notes: Performer; chamber size 110cc; single; 454-O; street legal; recommend Edelbrock gasket PN[7302] head; PN[7203] intake; PN[7205] exhaust; Big block.

Notes: Street legal performer; chamber size 60cc; single; 1.90" intake valves; requires pushrods PN# 9632; street legal; requires head bolt bushings PN[9680] and OE bolts or head bolt kit PN[8552]; will not accept rail rockers; recommend Edelbrock gskt PN[7313] head; PN[1250] intake; PN[1415] exhaust; 50-state street emissions legal;

Notes: E-Street. 84cc. Combustion chamber. Pair.

Notes: Street legal Performer; chamber size 60cc; single; 2.02" intake valves; polished; Quantity per car: 2

Notes: E-Tec 170. Chamber size 64cc; single; for engines with Vortec-style intake manifolds; 50-state street emissions legal; for use with eTec manifolds; Small block.

Notes: Street legal performer; chamber size 60cc; single; 1.90" intake valves; requires pushrods PN# 9632; street legal; requires head bolt bushings PN[9680] and OE bolts or head bolt kit PN[8552]; will not accept rail rockers; recommend Edelbrock gskt PN[7313] head; PN[1250] intake; PN[1415] exhaust; 50-state street emissions legal;

Notes: Performer; chamber size 60cc; single; 2.02" intake valves; street legal; requires head bolt bushings PN[9680] and OE bolts or head bolt kit PN[8552]; will not accept rail rockers; recommend Edelbrock gasket PN[7313] head; PN[7220] intake; PN[7227] exhaust;

Notes: Performer; chamber size 70cc; single; must use hardened pushrods; street legal; when using stock rockers; must use .100 in. longer than stock pushrods; must use choke kit PN[1932] 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 FelPro gasket; PN[1014] head; PN[1205] intake; PN[1404] exhaust; 50-state street emissions legal;

Notes: Performer; chamber size 60cc; single; 2.02" intake valves; machined for FelPro Loc Wire(TM) gasket; street legal; requires head bolt bushings PN[9680] and OE bolts or head bolt kit PN[8552]; will not accept rail rockers; recommend Edelbrock gasket PN[7313] head; PN[7220] intake; PN[7227] exhaust;

Notes: Performer; chamber size 110cc; single; 454-O; street legal; Big block.