![]() ![]() You have to use intake manifolds with the "vortec" late model design, which are available from edelbrock or GM. The valves are the severe duty ones from the Corvette LT-4 engine.The heads are about $1100, which is pretty competive with other good flowing aluminum heads. ![]() The key to this engine is the heads, which flow very well as cast. ![]() Spark Timing: 32 degrees maximum 4000 RPM 045 With HEI Distributor (Less with points distributor.) Oil Filter: AC Delco part # PF25, Premium AC Delco part # UPF25 Rocker Arms: GM 1.6:1 self aligning roller rockers (Roller Tip) 050†tappet lift with a 1.6 rockerĬenterline: 109 degree ATDC (After Top Dead Center) intake, 115 degree BTDC exhaust CAM #24502586, Hydraulic Roller Tappetĭuration: 218 degree intake, 228 degree exhaust. The base foundation of the ZZ430 is the ZZ4 Short Block (See ZZ4 Spec's for more information.)īlock: Cast iron, four-bolt intermediate mainsĬylinder Head: Cast Aluminum Fast Burn #12464298, 23 degree valve angle, Valve Diameter (Intake/Exhaust): 2.00†/ 1.55â€, Chamber Volume: 62 ccĬrankshaft: 1053 Forged steel, 1 piece rear sealĬonnecting Rods: Forged, powdered metal, 3/8†boltsĬamshaft: H.O.T. Specs on the ZZ430 from the Sallee Chevrolet website: ![]()
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