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The Legend of the All-Aluminum Big Block Continues
What's Hot?
· ZL1 Heritage
· Limited production
· 24-month GMPP warranty
The year was 1969, and the muscle car wars were in full swing. Each one of the big three had developed their own version of the ultimate high performance big block engine. Then, GM unleashed the ZL1, the most powerful engine ever released by General Motors. Based on an exotic aluminum block, the ZL1 offered only the best components from the L88 engine including a high compression piston, high flow aluminum heads and intake, and a bombproof bottom end. To celebrate the 50th anniversary of the Chevrolet big block, GM Performance Parts has brought back a modern version of the ZL1 for your chance to relive musclecar history.
The Anniversary Edition 427 starts with a retooled version of the ZL1 aluminum block using the exact same tooling that helped create this legend in 1969. The advantage of the aluminum block is that it offers the completed engine the weight of a small block with a whole lot more power. The block offers a full-strength structure including thick deck surfaces and 4-bolt mains.
Building on that foundation, the short block contains a forged steel crank, forged steel rods, and forged aluminum pistons for a 9.5:1 final compression ratio. Aluminum, oval port heads have a 110 cc combustion chamber and carry 2.19-inch intake and 1.88-inch exhaust valves. A matching, high-flow aluminum oval-port intake feeds the heads with the help of an 870 cfm carburetor. The camshaft is a hydraulic roller with valve lift numbers of .510-inch on the intake and .540-inch on the exhaust. We even added 1.7:1 aluminum roller rockers. Like the original ZL1, the Anniversary 427 comes grossly underrated at 430 horsepower.
With a full list of features, this modern ZL1 is one of the most exclusive big block crate engines ever offered by GM Performance Parts. But, we didn't stop with just a great engine! Once you purchase an Anniversary 427 big block crate engine, you enter a very exclusive club because only 427 of these engines will ever be produced. To document the rarity of this engine, GM Performance Parts will include a complete owner's kit with each of these engines. In that kit, you'll find official Anniversary 427 emblems to place on your car as well as an engine data plaque and certificate of authenticity that share a matching serial number with the valve covers.
Only 427 of these crate engines will ever be produced, and then the ZL1 tooling will be retired forever. We hope that you will be one of the elite hot rodders to celebrate the anniversary of the big block Chevy with GM Performance Parts.
Intake Manifold
Price: $382.53 plus tax
Part # 10185063
Low profile aluminum four barrel manifold
Intake manifold, ZZ series
Aluminum manifold used on all ZZ series 350 HO engines
Can be used on all small-blocks through 1986
Dual-pattern carburetor flange is approximately 1/2 lower than the 1970 LT1 intake, yet produces the same horsepower
Provisions for all late-model accessory brackets, EGR, and an integral hot air choke
A heat shield can be mounted underneath for improved performance
Aluminum Valve Covers
Price: $228.93 plus tax
Part # 12480127
Short Aluminum Valve Covers
Cast aluminum Chevy Bowtie-design valve cover is similar to P/N 10185064 except it is a short style with a PVC hole in both covers (grommets included)
Natural cast finish
Designed for pre-1986 engines with perimeter hold downs
Covers have oil baffle
Note: For use with 1.5 ratio stamped rocker arms only.
Chrome Valve Cover
Price: $113.58 plus tax
Part #12341670
Chrome Short Valve Covers
Short chrome valve covers, with baffle
For use on pre-1986 engines with perimeter hold downs
Chevrolet and the Bowtie logo are embossed on top
Note: For use with 1.5 ratio stamped rocker arms only.
350/290 HP Deluxe
Price: $2,866.33 plus tax
Part # 19244450
New for 2010, our best-selling crate engine is offered in a new Deluxe package that includes an intake manifold and chrome dress-up kit. The manifold is a high-flow aluminum intake*, along with the gaskets and installation hardware. The chrome dress-up parts add a bright, finishing touch to the 350/290 HP.
It’s easy to understand why this economical crate engine is so popular. It features four-bolt mains for strength and it’s filled with premium parts, including a smooth hydraulic camshaft and durable aluminum pistons that deliver an 8.5:1 compression ratio—making it a great, time-saving alternative to rebuilding a tired, two-bolt-main core engine.
GMPP also has all the parts you need to get your 350/290 HP engine running in your project vehicle, from the starter and distributor to the plug wires and more. And if you want even more power, our high-performance cylinder heads will take this stout small-block to the next level.
*GMPP recommends Holley 670-cfm carburetor P/N 19170092 for use with the 350/290
Ram Jet 350 PFI with Iron Vortec Heads
Price: $6,357.58
Part #12499120
Ram Jet 350
with calibrated controller & wiring harness
What's Hot?
Fuel injected power
Vortec cylinder heads
350 horsepower
Port fuel injection meets a small-block classic.
GM Performance Parts has just what you need to put a modern new twist on your favorite classic hot rod with our amazing Ram Jet 350 crate engine. GM offered the Ram Jet fuel injection system on a variety of models in the late-1950s through the mid-1960s, but the Ram Jet has never looked as good as this!
Evoking the nostalgic look of the early fuel injection systems, the Ram Jet 350 has a styled intake plenum that actually leads to a modern day fuel injection system. Instead of a mechanical injection system, the Ram Jet 350 is fed by a state-of-the-art, electronically controlled port fuel injection system. Developed by GM to the same standards as production vehicle systems, the Ram Jet 350 delivers exceptional throttle response and performance. This is made possible by the sophisticated, latest-generation MEFI 4 controller, which has improved electronics and closed loop capability (compared with the previous MEFI 3 system) for great all-around drivability.
A venerable 350 cubic-inch small-block combination anchors the Ram Jet 350. It is designed for long-lasting durability and pump gas compatibility, with Vortec cylinder heads, a hydraulic roller camshaft, and 9.4:1 compression.
GM Performance Parts delivers the engine with the necessary wiring harness and detailed instructions. It can be installed on any 1977-or-earlier vehicle originally equipped with a carburetor. Now there's no reason you can't dump those old carbs and get fuel injected!
ZZ383 High Performance Engine
Price: $6,165.01 plus tax
Part #12498772
ZZ383
What's Hot?
4340 nitrided crank
Large valves
Fast Burn heads
Big-block-style power from a small-block engine!
If you're looking for a small-block Chevy that makes big-block power, we've got the engine for you! For the ultimate GM Performance Parts small-block crate engine, choose the ZZ383 a combination of Fast Burn aluminum performance heads and a 383 stroker small-block that adds up to 425 horsepower and 449 lb.-ft. of torque.
A carefully engineered balance of torque-producing bottom-end power and horsepower-inducing Fast Burn cylinder heads combine for the ZZ383/425's stellar performance statistics. The Fast Burn heads have large 2.00/1.55 valves and specially designed chambers that draw in lots of air and fuel, burning the mixture quickly and completely. It's a combination that generates great mid- and high-rpm power, which, when combined with the 383-cubic-inch displacement, creates an awesome all-around performer.
The ZZ383 has a specially machined engine block and 3.80-stroke crankshaft, which produce 383 cubic inches of pure performance. The reciprocating assembly is comprised of heavy-duty components including a 4340, nitrided, and induction-hardened forged crankshaft, and unique, heavy-duty powdered metal rods. It's 425 horses of bulletproof performance.
With the ZZ383/425, you get the power of a big-block with the size and weight of an aluminum-headed small-block. If you've never driven a car with a stroked small-block and the top end components to support it, now is your chance!
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Call the Engine Order Hotline @ 1-866-979-2805 |