Small
Block Crate Engine Special
ZZ4
355 HP 350 ci -- 12 month warranty
Call us toll-free
at 1-800-926-4977 ext. 1232 (or 330-792-5258) between 7:30 a.m. and 9 p.m. EST Monday
through Friday and 8 a.m. 'til 4 p.m. Saturdays about this exclusive Greenwood Chevy
Performance Parts special!
Imagine an aluminum head small block that makes 355 horsepower.
What if it had a street roller camshaft, 4-bolt main block, undercut rolled fillet
crankshaft, high silicon pistons and strong PM connecting rods? We imagined it, and then
engineered, developed, tested and built it.
The ZZ4 is the evolution of our popular
ZZ series of small blocks that power thousands of street rods, hot street cars, circle
track racers and drag racers. With over 400 Ft-Lbs of torque, the ZZ4 is the best way to
put an aluminum head, roller cam, high performance small block between your favorite
fenders. The aluminum angle plug cylinder heads have screw in rocker studs, 1.94"
intake and 1.50" exhaust valves and 58cc combustion chambers that yield a crisp and
responsive 10 to 1 compression ratio. Also included are our lightweight valve spring
retainers that weigh half as much as our previous design.
The valve seats are radiused and
we have included valve stem seals to help keep the oil where it belongs. To compliment the
cylinder head design, we've incorporated a steel roller tappet camshaft with .474"
intake and .510" exhaust valve lift. The combination makes 355 horsepower at 5250 rpm
and has that great sounding muscle car idle, with just enough lope to let people know this
is no station wagon engine. Also included with the ZZ4 is an HEI distributor with an
ignition timing advance curve developed for performance, a dual plane aluminum intake
manifold that accepts your spread bore or square bore carburetor, an 8" high-rpm
harmonic balancer, 12.75" automatic trans flex plate and a cast iron water pump. It
even has the spark plugs in it when it was test fired at the factory for quality control
checks. The ZZ4 is currently our most popular crate engine, and you can see why. With a
long history of successes in circle track and drag racing as well as street rods and other
performance applications, the ZZ4 may just be the bullet for your next project. The
ZZ4 is not intended for marine use, and should only be used in 1973 and earlier
pre-emissions street vehicles or any year off road vehicle.
Technical Notes: Carb, plug wires, starter, oil filter and oil filter adapter, and exhaust
manifolds not included.
Horsepower .............................................355 @ 5250 RPM
Torque......................................................405 @ 3500 RPM
Maximum Recommended RPM..............................5800 RPM
Compression Ratio......................................................10:1
Block ..............................10105123 - 4-Bolt Main, Cast
Iron
Crankshaft 2551485 - Nodular Cast Iron; Undercut & Rolled Fillets
Connecting Rods ..................................10108688 - PM Rods
Pistons ............0159436 High Silicon Aluminum w/ Offset Pins
Piston Rings.........................................................14089025
Camshaft ....10185071 - Hydraulic Roller, Lift
.474" I, .510" E
Camshaft Duration @ .050" ..........208° Intake, .221° Exhaust
Intake Manifold ..................10185063 - Aluminum Dual Plane
Distributor...................................................11040607 - HEI
Heads .......12556463 - Aluminum 58cc Combustion
Chambers
Intake Valves .............................................10168465 - 1.94"
Exhaust Valves ...........................................10168514 - 1.50"
Valve Springs .........................12551483 - LT4 Chrome Silicon
Rocker Arms ........................................10089648 - 1.5 Ratio
ValveLash......................................................................Zero
Part number #24502609
Only $4,100.00*
*
Price subject to change without notice
GM
PARTS
WARRANTY INFORMATION:
Due
to the nature and intended usage of GM Performance Parts, the parts
available on this website and in our walk-in store (except for engines and
partial engines) are sold without any express or implied warranty of
merchantability or fitness for a particular purpose. The entire risk as to
the performance of such parts is with the buyer. Should such parts prove
defective following their purchase, the buyer and not the manufacturer,
distributor, or retailer, assumes the entire cost of all necessary
servicing, repair, damage or loss to property and consequential damage.
"Engine and Partial Engine Warranty" under the provisions of the
General Motors Dealer Service Parts and Accessories Warranty Section 1.1.3a,
engines and partial engines, including partial engines in kits, are
warranted against defects in materials and workmanship. This warranty
specifically excludes engines and partial engines used in racing or
competition or that fail as a result of alteration. These engines and
partial engines are not designed or approved by General Motors for marine
use. Installation of GM Performance Parts may adversely affect GM New
Vehicle Warranty. Please consult your dealer for terms and conditions.
Call us toll-free
at 1-800-926-4977 ext. 1232 (or 330-792-5258) between 7:30 a.m. and 9 p.m. EST Monday
through Friday and 8 a.m. 'til 4 p.m. Saturdays about this exclusive Greenwood Chevy
Performance Parts special!
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