Chevrolet Performance ZZ632/1000 Deluxe Long Block Crate Engines

Chevrolet Performance's ZZ632/1000 deluxe long block crate engines are their biggest and baddest big blocks! They start with a tall deck Sportsman Bowtie block and an all-forged roller assembly, then add a hydraulic roller camshaft and high-flow spread-port CNC-machined cylinder heads derived from Pro Stock racing technology. The RS-X design cylinder heads feature symmetrical ports to produce similar power from all eight cylinders. ZZ632 crate engines have a crank-trigger ignition system with coil-near-plug ignition coils mounted on a unique valley plate. Included is a pre-programmed, self-learning control system for precise fuel control and amazing output on premium pump gas. These big block engines reach peak power at 6,600 rpm and rev to a recommended maximum of 7,000 rpm.

Technical specs:

* Bore and stroke: 4.600 in. by 4.750 in.
* Power is 1,004 hp at 6,600 rpm
* Torque is 876 lbs.-ft. at 5,600 rpm
* Cast iron block with 4-bolt mains
* Forged 4340 steel crankshaft
* Forged steel H-beam connecting rods
* Forged aluminum 2618 alloy pistons
* Aluminum high-rise single-plane intake manifold
* Dominator 4500-style throttle body
* 86 lb.-hr. fuel injectors
* Billet steel hydraulic roller camshaft
* Valve lift of 0.780 in. intake and 0.782 in. exhaust
* Camshaft duration at 0.050 in. is 270 intake and 287 exhaust
* Aluminum RS-X symmetrical spread-port cylinder heads with 70cc chambers
* Titanium 2.450 in. intake/1.800 in. exhaust valves with a 5/16 in. stem
* 58X reluctor crank-triggered, coil-near-plug ignition
* Compression ratio of 12.0:1
* Forged aluminum shaft-mount roller rocker arms with 1.8:1 ratio
* Aluminum water pump
* Steel 8-quart oil pan
* Recommended fuel: 93 octane or higher
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