Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. The 350/290 Base is an economy-minded alternative to rebuilding Gen 0-type 265-400-cubic-inch Small-Block engines. With those kinds of numbers, it's the perfect replacement engine for the millions of GM vehicles that shipped with a small-block. We thought the peak horsepower would be closer to 6,000 rpm, but as it is the spread between peak torque at 4,300 and peak horsepower at 5,700 is a decent 1,400 rpm. I do a cam for the target 290HP engine. After the rocker swap power dropped, which wasn't supposed to happen, we discovered that changing the rocker ratio caused the pushrods to bind in the guideplates. $7,501.16 Quick View SP350/357 Turn-Key 357 HP $8,758.23 Quick View This relocates the pushrod more outboard, which is why the pushrod would bind against the cylinder head. Parts only when consumer repaired or installed in non-highway application. At that rpm the rocker swap made a decent 381 hp. The pistons have four valve reliefs and (while we didn't measure it) the dish specs at 10 cc. Chevrolet Performance 350 290 Deluxe Crate Engines 19244450 Free Shipping On Orders Over 99. . Got a tired, old Chevy that needs a lift? 0000002406 00000 n Webthe 350 290 hp engine block has provisions for both right hand and left hand dipsticks. 350 290hp base crate engine 19421178 chevrolet performance . The plan is for this engine to power a nearly daily driven street rod so it was important that we not go overboard on the camshaft, induction, or the cylinder heads. The COMP cam does add 9 degrees of exhaust duration, which helps the top-end power but perhaps most importantly, the XE cam also moves the lobe separation angle (LSA) tighter from 114 to 110 degrees. Never miss a sale on new parts, tools, and more! Check out the rest of our website for more information. Valves: .194 Intake/ 1.50 Exhaust Stop there and adjust the exhaust rocker. **Price is Valid for Cash/Check Purchases Only**. Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles. Note how the 1.6:1 version rocker (right) moves the pushrod cup closer to the fulcrum. Its a decent engine, but I would not buy one again. Of course, another avenue would be to jump to a hydraulic roller cam that would give us much more lift with the same durationand make more power. Those are powdered metal rods. Everything from mechanical components to bolt on EFI conversions! ZZ Series Deluxe Crate Engine - Chevrolet Performance ZZ572/620 Series Engine $ 22,888.89 $ 19,522.46 Select options Sale! Close this window to stay here or choose another country to see vehicles and services specific to your location. General Motors limited 2 year / 50,000 mile parts & labor warranty. We'll get into the accessory drive selection in a later story. Sure, we could have bolted in a much longer duration cam and perhaps pumped up the peak horsepower and called ourselves heroes. Against the ZZ4 intake, the RPM manifold is very close in terms of power and the ZZ4 is less expensive. The L31 Vortec crate is a much better deal from GM because the Vortec heads are so much better than the older iron heads on the 290HP engine, and the L31 already has a roller cam. 0000004383 00000 n 1a (and addendum) and all applicable state regulations when conducting engine changes. Drop some performance into your Street Rod, Muscle Car or Truck with these genuine GM Performance engines! From mild to wild The 350/290 HP base engine assembly does not include an oil filter adapter or oil filter element. Crate Engines Instruction Sheet (35519421178), Engine comes with a 24 Month 50,000 mile warranty, Includes provisions for both RH and LH oil dipstick, Puts out 290 hp 5100 rpm and 326 lb.-ft. of torque at 3750 rpm, Contain a 2-piece rear main seal and has a 1.5:1 rocker arm ratio, It is loaded with a four-bolt main bearing block, aluminum pistons, and a hydraulic camshaft, Block: Cast-iron with four-bolt main caps, Camshaft Lift (in. 2. Or maybe your looking for a great new Engine for you first Hot Rod build. Since the engine was brand new, we reused the Chevy timing chain and gear and bolted everything back together. The 350 HO small block crate engine has powered countless project cars since its '67 Camaro debut. The 350/290 delivers 308 hp @ 5100 rpm and a solid 347 lb.-ft. of torque at 3900 rpm. 350 HO Turn-Key Crate Engines | Chevy Performance Parts, Emissions Standards Compliance | Chevrolet Performance, Block (P/N 10105123): Cast-iron with four-bolt main caps, Connecting Rods (P/N 10108688): Powdered-metal steel, Camshaft Type (P/N 24502476): Hydraulic flat tappet, Camshaft Lift (in. $5 Off Your $100 Mobile App Purchase - Get the App. Recommended Fuel: 87 Octane With that little bump in the road avoided, we ran the test again and were rewarded with a measurable gain in power nearly all the way across the entire rpm band with a 10 lb-ft of torque improvement at 3,300, which was pleasantly surprising. After resetting the lifter preload with the COMP 1.52:1 roller-tipped rocker arms, we buttoned the engine back up and ran it up to see how much the power improved. If you are setting clearance on a mechanical camshaft, the procedure is exactly the same except you will measure the lash between the rocker arm and the valve stem with a feeler gauge. The program aims to guide you every step of the way. My hydraulic roller along with an aluminum intake and 4 barrel carb add's 100HP to the crate engine. The first thing we did besides paint the engine orange is stick it on the dyno and add headers, an Edelbrock Performer RPM intake, and a COMP Cams flat-tappet hydraulic cam that combined to deliver 44 hp for a 334hp peak. Follow EPA, CARB, and state regulations for engine changes, Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. This added nearly 60 lb-ft of torque and a solid 44 hp. To bump the compression, we used a set of Fel-Pro steel shim head gaskets (PN 1094) that are only 0.015-inch thick, compared to composition gaskets that are 0.039 thick. Valve Springs:3911068 Pistons: Cast Aluminum If you don't do anything else to this enginedo that! Visit TheBLOCK.com for a behind-the-scenes look at the world of Chevrolet Performance from an enthusiast's point of view. Running the final test, the springs didn't really improve the power all that much, but at least knew we had good control over the valves. $7,198.36 Quick View 350 HO Turn-Key 330HP- 2 IN STOCK ! 5.3l. Here, the rpm head has a clear advantage with 158 cfm at 0.500 lift while the production iron head is doing well to generate 136 cfm at this same lift. If you need to know if a part is in stock, please call prior to placing your order. One reason the power improved with the head swap was because of this bump in compression. Of course, the RPM heads also improve the airflow by a significant amount. 0000119955 00000 n Instead, we substituted these ARP poly locks. 0000078795 00000 n 3. Once both the intake and exhaust valves are set, you can move onto the next cylinder. But before we get to the fun stuff, let's quickly hit the specs for our Great Crate. 7. 1. That direction firmly defined our search pattern along with an eye toward not depleting our meager horsepower war chest. This is important because the cam and lifter interface is splashed oiled with lube from the crank. Camshaft: Hydraulic Flat Tappet 0000079214 00000 n 0000016086 00000 n We decided to try the COMP cam first with the stock springs and rockers but we threw away those factory adjuster nuts because they rarely hold up under multiple installations. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice. Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. hb```b``a`c` B@163`K/ :lcm`!AA (Editor's note: Read the instructions!). Camshaft: The 350/290 HP engine uses an aggressive flat tappet camshaft to achieve the level of performance for its intended usage. The primary pipe diameter is actually at 1-3/4 inch where on the street we would recommend a 1-5/8-inch primary pipe with long 34-inch primary pipe length with long 18-inch collectors. Pace Performance (a GM dealer) used to sell the 260 and 290hp 350 crate heads as "take-offs" Meaning they used the brand new shortblock and put a better head on it. 0000080216 00000 n The engine employs the classic two-piece rear main seal iron block with iron heads, 8:1 compression ratio, a mild flat-tappet hydraulic camshaft, cast aluminum pistons, and a cast crank. We got a pile of small parts from Summit, including a balancer and bolt, a fuel pump block-off plate, an oil filer adapter, dipstick, Autolite spark plugs, oil and filter, and new Fel-Pro valve cover gaskets to complete the engine and get it ready to fire. We estimated the. Connect with us via email and social media today. As a tip-off, if you try to remove the valve covers, the gaskets are seriously glued on. GM Performance Parts believes that everyone should be able to afford a high quality GM V-8 without going broke. Our final peak horsepower number jumped from the original 290 hp to 334, which is a gain of 44 peak horsepower and a bunch of torque throughout the entire rpm band and all while using the stock iron heads. The e-mail address that you entered is either incorrect or invalid. What usually happens in cases like this is the spring seat pressure is unable to keep the valve from bouncing off the seat on the closing side. We are doing everything within our control to ship orders as soon as possible. The cast iron cylinder heads are designed to be extremely durable while still providing good airflow through the engine. We changed the intake, added headers, slipped in a very streetable hydraulic flat-tappet cam, and the small-block responded with 334 hp and 370 lb-ft of torque. With 8:1 compression and a mild flat-tappet hydraulic cam, it gave us a great starting point for a street rod powerplant. So we installed a set of COMP's 1.6:1 roller-tipped Magnum rockers and pulled the dyno handle. When considering a crate engine, it's a good idea to add up all the extra parts it will need to be a complete engine. Head Games. 0000044817 00000 n For street engines, I prefer to study the torque curve rather than look at the peak numbers as any change that improves the torque across the entire curve is the best you can expect. All GM Performance Parts Crate Engines includes a 24-Month or 50,000 Mile Limited Warranty through GM Performance Parts. 0000009313 00000 n This is the main reason why we chose to run the high-zinc oil from AMSOIL, to ensure that the cam (once it was properly broken in) continues to work without undue wear. ): 222 intake / 222 exhaust, Valve Size (in. The only giveaways would be the dipstick on the wrong side and the lack of a mechanical fuelpump. The break-in procedure included running the engine with a slight load from 2,000 to 2,500 rpm for 20 minutes to ensure that the cam had sufficient lubrication at all times. 0000002566 00000 n Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. 11. Stamped steel Chrome valve covers Mechanical Fuel Pump Push Rod The Edelbrock heads come complete and ready to bolt on for a flat-tappet camshaft. It is also filled with premium parts, including a smooth . The 350/290 Deluxe combines Chevrolet Performance's most popular crate engine with an aluminum intake manifold (the Holley 670-cfm carburetor, P/N 19170092, is recommended) and chrome dress-up kit to create one of the most stylish and value-driven engines on the market. Chevrolet Performance Parts believes that everyone should be able to afford a high quality GM V-8 without going broke. 4. Sometimes it's the way the test is run that is as important as the parts that are tested. This is how you increase the ratio. Here is a video of one idling after install: Its a known issue, just rarely addressed because its considered a mfg fix for a long known flaw that affects performance/towing builds. You can't make decent power without them. 6. Even if I was doing an era-correct looking car; I'd dump in a 4bolt vortec crate, and eventually switch the heads and intake out as budget allows. For all things Chevrolet Performance, TheBLOCK.com has the goods with in-depth stories, photos and stunning videos.The BLOCK: https://theblock.com/The BLOCK Instagram: https://www.instagram.com/theblockdotSubscribe to FUEL Newsletter: https://www.chevroletperformance.com/ Well bring you the latest on new Chevrolet vehicles, racing, performance technology, performance parts and more. - Classics on 19421178 350 Crate Engine 290 HP HOGM Goodwrench 12691671: GM Replacement Small Block Chevy What Year is the Best Chevrolet . The engine employs the classic two-piece rear main seal iron block with iron heads, 8:1. 350 290hp base crate engine 19421178 chevrolet performance. 0000078766 00000 n Or maybe your looking for a great new Engine for you first Hot Rod build. All GM Performance engines include a 24 Month 50,000 mile warranty. But this is STREET RODDER, which means we can't leave it stock. This is the new COMP 26981-16 beehive spring that drops right into the stock spring seat. Chevrolet Performance believes that everyone should be able to afford a high-quality GM V8 without going broke. of torque @ 3900 RPM There are zero pan baffles and no windage tray so 1 g turns are not recommended. Rather than milling the head, we cheated a little and used a Fel-Pro 1094 gasket that bumped the compression to 9.43:1. As far as peaks are concerned, the Great Crate made 397 lb-ft of torque at 4,300 with horsepower peaking at 376 at 5,700 rpm. Description: Massive torque in an affordable Big-Block is what you get with the 502 HO crate engine. 4.5 out of 5 stars If you look at the torque curve on the first graph, you'll see that the headers added power everywhere. If you confine yourself to inexpensive heads this can be built into a decent motor for a little less money than buying crate L31, which isn't a bad deal at power per dollar. Turn the engine over until you see the exhaust valve begin to open (EO). When you purchase through links on our site, we may earn an affiliate commission, which supports our community. ): 212 intake / 222 exhaust, Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers, Valve Size (in. For want of a better term, let's call this the synergistic effect. PROPOSITION 65 WARNING. Chevy Small Block Crate & Long Block Engines, Chevy Small Block Trans & Engine Packages, License Plate and License Plate Accessories, Computer Chip/Programmer/Performance Module, Crate Engines, Bare Blocks and Long Blocks, Exhaust/Exhaust Components/Heat Protection, LTx Performance (Gen V) Performance Parts. The plan for this engine has always been to build an affordable small-block that will deliver excellent street manners while still delivering good power. Today's Muscle Engines for Yesterday's Cars. 0000044928 00000 n A GM base engine typically consists of the following: Short Block, Camshaft, Timing set, Cylinder heads, Valve covers, Timing cover, oil pan, oil pump & pick up tube. Chevrolet provides customers with fuel-efficient vehicles that feature engaging performance, design that makes the heart beat, passive and active safety features and easy-to-use technology, all at a value. The block also comes with a pre-1986-style design and a two-piece main seal. Cam Duration @ .050: 222deg. 0000014361 00000 n I have a 350/290 hp crate that's been in my truck for about 12 years. Just increasing the compression this much should be worth roughly 13 hp from the 334hp baseline. Allow 6 to 8 weeks for delivery of debit card.

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