HISTORY AND SPECIFICATIONS OF THE NOTORIOUS SPECIAL ANNIVERSARY ZL1 ALUMINUM BLOCK 427. The 50th Anniversary Aluminum-Bodied Cobras are finished in Polished Bodies with Brushed Le Mans Twin Stripes. [ZL1-equipped Camaros were able to run 10.20s with slicks, long-tube headers, a high-rise Weiand manifold, dual Holley 660-cfm carbs, and a turbo-clutch transmission, a test PHR performed in the July '69 issue with help from Dick Harrell.-ed.]. How Bob Cross Saved The ZL1 Block When you're scrounging through the swap meet section of your local car show, sometimes it can be tough to tell what you are looking at. The all-new 427 CI V-8 is a continuation of the storied ZL1, created with the original 1969 tooling that was discovered long after that keen-eyed engineer saved it from oblivion. We even added 1.7:1 aluminum roller rockers. The L88 engine is one of the most popular big-block engines in Chevrolet’s history. As we pointed out earlier, the high-performance crate engines offered up by certain GM dealers helped launch what is today GM Performance Parts. And, with headers and open exhaust, the mighty ZL1 could belt out between 550 and 575 hp. Hot rodders loved the ZL1 Ram Jet, but purists wondered why this ZL1 was a 454 and not the 427 that they had dreamed of as kids. Additional modifications include an L88-style hood, March … crate engines are a special owner's kit that includes 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 … Your information will be collected and used in accordance with our  Privacy Policy, Anniversary 427 Big-Block Engine - Big-Block Birthday, cast aluminum with 4-bolt mains (PN 12370850), DYNO NUMBERS 427CI ZL1 CRATE MOTOR. Specifications: Power: 430 HP @ 5800 RPM, 444 ft. lbs. The year was 1969, and the musclecar wars were in full swing. For the heart of the engine, Prestige went with a solid-roller camshaft from Howards Cams, measuring .589 inch of lift at the valve on both the intake and exhaust, and 244 degrees of duration, at .050, on both the intake and exhaust, with a 110-degree lobe-separation angle.Keeping the cam in-time is a billet-steel double roller timing set, covered by a Shelby cast-aluminum … 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. Find CHEVROLET 7.0L/427 Crate Engines Aluminum Crate Engine Cylinder Head Material and get Free Shipping on Orders Over $99 at Summit Racing! Please Answer The Following To Purchase This Part: This product is cancelled and is no longer available. Offer is not valid on previous purchases and cannot be combined with any other sale or promotion offers unless otherwise stated. Building on that foundation, the short block contains a forged steel crank, forged steel rods, and forged aluminum pistons for a 10.1:1 final compression ratio. The Mark IV engines had different valve placement and combustion chamber shape-advancements made through GM's testing for NASCAR competition. Shelby is currently developing a special optional engine package to further distinguish the limited-edition Cobra. Intake / 234 deg. This offer is not transferable and will not be extended. Please select the components you would like from the list below. People with the aluminum Pond engine block are running over 1300 HP without issues. Anniversary 427 Big-Block New for 2008, GM Performance Parts re-releases the vaunted ZL1 crate engine. But imagine how tough it would be to tell what the tooling for that block looked like. Lobe Separation: N/A 19331572 480 HP @6000 RPM 490 LB-FT @3800 RPM Note: A customized part can only be added once per order. Aluminum oval-port heads and matching high-flow aluminum oval-port intake are paired with an 870-cfm carburetor. The intake was aluminum and wore an 850-cfm Holley four-barrel. That was the scene some five or six years ago when Bob Cross, a lifetime GM employee and current GM Racing engineer, went looking for the original ZL1 block tooling. Modern History Of The ZL1 The first application of the renewed ZL1 tooling was a reproduction ZL1 block. Compression Ratio: 10.1:1 Still, you got a lot of race engine for the money. The headers are not from the 2F. • Oil pump, pick-up and oil pan of torque @ 3800 RPM With the release of the latest ZL1-influenced crate engine, we think hot rodders and musclecar purists will come together in celebration of one very special birthday. WARNING: This product can expose you to chemicals including but not limited to lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride and/or 4, 4'-methylenebis (2-chloroaniline) which are known to the state of California to cause cancer or birth defects or other reproductive harm. The 427 Anniversary Edition engine is currently on loan and resides at Bill Tower’s private museum in Plant City, Florida. As you'll see, the engine is just part of the entire package, but it certainly is the centerpiece of what we think will become the most modern hot rod ever built. He somehow located it, convinced GM Performance Parts to put the substantial investment into restoring that tooling, and now we've got brand-new ZL1 blocks. GM called the new engine the "Turbo Jet," and the dawn of the big-block rat was upon us. Displacement: 427 CID . +Project X Gets The First ZL1 How did Popular Hot Rodding get an exclusive first look at GM Performance Parts' latest greatest crate engine? Chevrolet Performance resurrected the 427 Rat from the grave, and packed in some modern goodies. Big Block 427 Anniversary ZL1 Engine 19166392 $22,900.00. GM Performance Parts' Anniversary 427 Big Block is a modern interpretation of the legendary '69 ZL1. FAST 'N FREE. Offer is only available at YEARONE.com, phone orders are not eligible. In 1969, a special “L89” 427 engine combined the L71’s induction system with the L88’s aluminum heads, offering maximum horsepower with an approximately 100-pound weight advantage over the standard iron heads. In this PHR feature, we've got an advance look at what parts will be going into this history-making big-block crate engine from GM. With only 427 of these super-rare all-aluminum 427 big-block crate engines available, it will be one of the hottest GM crate engines built in 2008. Bore x Stroke: 4.250” x 3.750” Yes – substantially more. Our 427 FE engines start with our Aluminum 427 block. In the end, the Mark IV engines were more efficient, could operate at a higher rpm, and offered more power potential than its predecessor. This is a limited time offer. The Anniversary 427 is a modern re-creation of the mythical, all-aluminum ZL-1 427 engine. Camshaft: Steel Hydraulic Roller Tappet [The July 1969 issue of Popular Hot Rodding stated the original ZL1 compression ratio at 12:1.-ed.] A hydraulic roller cam, a smaller 770-cfm carb and a 10.1:1 compression ratio are the only divergence from the original, but those changes allow for a pump-gas crate engine that will still crank out a conservatively rated 430 hp-just like the original. Chevy ZZ427 Anniversary - 430 Aluminum BBC GMPP ZZ427 engines are a throw-back to the muscle car era where big blocks ruled the strip. Rocker Arms: Aluminum Roller, 1.7:1 Ratio The engine on the left is the Can-Am 427 engine from Jim Hall’s Chaparral 2J, the “Sucker” car.