New GM ZZ4 “Crate” Engine 355bhp
This new engine is based on the late 1 pce rear seal 4bm block. It is fitted with a forged steel crankshaft, powdered metal steel conrods, hypereutectic pistons, hydraulic roller camshaft, 208/221 @ .050”, .474”/.510” lift. Aluminium 58cc heads, 1.94”/1.50” valves, 10:1
compression. 355bhp @ 5250rpm, 405 lbs ft @ 3500rpm. Complete with- HEI distributor, 8” harmonic balancer, long style C.I. w/pump, aluminium dual plane inlet manfold, 153 tooth auto flex plate. Maximum rpm 5800. Stamped steel centre bolt rocker cover. Great value for money!
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350 1pce seal-ZZ4 355bhp |
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£T.B.A |