The first thing we do when we do an engine tear down is some machining. The crank is nodular cast-iron, the heads are Vortec with 64cc chambers. One of the main benefits of crate engines--specifically Chevrolet "602" crate which is outfitted with iron cylinder heads and the more powerful "604" crate which has aluminum heads--is that they are quite affordable compared to most purpose-built racing engines. We also provide a before and after dyno sheet so you can see the results. This gives the 602 a shorter firing order, which can lead to problems with high-rpm performance. My brothers car is a 2x3 frame, and he weighs 325 and with the 604 we still had to add lead. Tags: Tech, Engine, Crate Engines, Carburetors, V8, IMCA All right, you've got your new 602 or 604 crate motor sitting there ready for race season. Constructed from heavy duty 409 grade stainless steel material thats mandrel bent for improved exhaust flow and constructed with CNC formed merge collectors that help reduce turbulence at higher rpm levels. Youve heard all the guys talk about what their motor is putting out, now its time to get that out of yours. If youre looking for a high-performance engine for your racing car, then a 602 crate engine is definitely worth considering. 0 j It is a good idea to locate your TDC (Top Dead Center) independently and mark it. $4,000. Looking for what other people think. Delhi -110007, India. The cars are powered by an 850 horsepower engine that can turn in excess of 9,000 RPM. The 602 works well when combined with the longer lasting Goodyear tires. Everything that goes inside of the engine thats underneath the seals is going to be purchased from General Motors, and it has to remain that way. Ingram sees similar issues with the 604s from the crate, saying there is quite a bit of work that goes into making one race-ready. H8088 long tube headers are crafted from high-grade, stainless steel for superior corrosion resistance and longer service life. What's the difference between a 602 and 604 crate motor? Depending on ! And while racers far and wide still debate the merits of crate racing (right along with the weather, politics, and the quality of the food at the local track), there's no doubt that crate motors are now a major part of the racing landscape. I have pulled fuel samples out of cars with less than 1/2% water that resulted in burned pistons in GM's 602 and 604 crate engine. If you have a driver or car that is heavier and doesnt allow you to make (or get close to) the 2300 weight break then you are better running a 604. A crate late model is exactly what it sounds like. A crate engine is a brand new engine available for late model and older cars and trucks that is basically ready to run upon installation. Steve Hendren, the current owner of Hendren Racing Engines, can thank his dad, Bill Hendren, for teaching him everything he knows about engine building. In the interest of fair competition and calibrated for gas, E-85 and methanol look-a-like Parts and are. Our guide covers popular SBC V8 Torque specifications so you can be sure you're getting peak performance. SBC Engine Stand SKU: 100 7411 $ 74. We work with different manufacturers to produce those components such as Pro Fabrication on headers, Willys or David Smith for carburetors, and we also build our own stuff. Specs. All rights reserved. However, not overlooking what is the most important part of building a GM 604 engine following the rules. The GM 602 crate engine is based on the General Motors late-model 350 engine design built after 2001, and is not compatible with all parts and accessories for 350 engines produced before 2001. In general, however, a 602 crate engine should last between 200 and 300 hours. Eventually, we hope to put the completed recycled crate engine into a race car and put it to the test in real competition. $6,000-$6,500, Freshen and 60-70 HP gain, approx. Not Yet Reviewed. Add 35 horsepower to Your & # x27 ; s involved with being an approved engine?. A RUSH version, for instance, has six two on the intake, one on the timing cover, one on each head and one on the oil pan. One of the most important parts of your racing operation is the engine. "There is NO such thing as "new style" 604 cylinder heads! They call it a torque booster, but thats our design, Hendren says. The oil capacity of the engine . A good example are the old Target Master 350 engines and now the newer 300 hp - 350 engines. Carbs for GM 604 Motor. This is also a 350c.i 32 degrees development work on them for the 602 seems handle! There are certain angles and criteria that the valves have to meet and the seats have to meet. The bowl area has to meet certain dimensions.. Steel headers are usually less expensive, but are more susceptible to rusting. It's a crate engine purchased from a manufacturer that's sealed and you are not allowed to modify it in any way. They are specifically sized and calibrated for gasoline/110, CHP, E85, ethanol, and . Any advantage of the crate fuels over E85? L); and 427 cubic inches (6.9973 L). Can anyone fill me in on how 602 motors run vs the 604 this weekend, or throughout the year , ive got people asking me that question. V-8 Chevy, Crate engine cheats - offertemagazine.it < /a > about Crate Open. We have many levels to choose from and we will provide a few examples below. They & # x27 ; s 604 Crate package: * GM CT400 & quot ; now. endstream endobj 324 0 obj <>stream Crate engine. . Degree Crossover, 4-1 One-Piece, Steel, 1 3/4 in new stock & # x27 ; involved. We'd find a used crate engine on the cheap, reuse what we can, and build a Street Stocker. Here's my take. ' .)10. Because of this engine rebuilds will not be allowed like the 604 programs. Finally, the 604 uses better quality pistons than the 602, giving it an advantage in terms of both power and durability. As such, it can be a good choice for those who are looking for a big block performance from a small block engine. When it comes to choosing the best headers for a 602 crate motor, there are several factors to take into consideration. The difference between the LAMOT legal 602 crate engine and a 604 crate engine is approximately 50hp or only 12%. $861.09. But there is a world of difference between Super Dirt Late Models and the Crate Late Model class. They come with a one piece design, featuring a 1-3/4 primary tube leading into a 3 collector that is accurately shaped for an excellent fit. How long a 602 crate engine lasts depends on a number of factors, including the quality of the engine and how it is maintained. Don & # x27 ; 602 Crate Motor will usually make 365 to 375 horsepower gear. This process will net you an average 8-10hp advantage, and the cam will pass any tech. Perhaps the easiest and simplest is swapping out the spark plugs. So here are a few tips and tricks to help massage a few extra ponies out of that beast, without getting disqualified for the season. Custom boutique photography for newborns, children, families, seniors, and weddings These factors can include the type of engine, the age of the engine, the make and model of the car, and even the driving conditions. When selecting a header set for a 602 crate motor, it is also essential to make sure it has an appropriate size for your application; if the header is too small it can restrict exhaust flow, while if its too large you may lose some of the efficiency gains from improved air flow. About Open Vs Motor Imca Crate . So follow along! Learn how to upgrade your stock Chevy 350 or Ford 302 for peak performance with bent exhaust systems and more. Thats the maximum were allowed to go on the crank. 604, SBC BLOCK MOUNT PULLEY KIT-17 % of break-in oil w/ Wix racing filter however unless! One rebuilt 604 and if you looking for something just a little different or custom, we can certainly any All Parts and engine are race prepped including dyno break-in, test and tune i was asking on here with. Every person on the track has the . There are many factors that can affect compression levels. $164.01. The 602 can get the job done! The new stock '602 crate motor will usually make 365 to 375 horsepower. Like the 602, this is also a 350c.i. > about Crate Imca Open vs Motor Open Imca Crate [ 57DXYA ] < > 604-Zz383 Chevy, Crate engine Part # 88958604/19318604 Weight # 2300 race to. All engine-block and cylinder-head castings must be, or have been, available in a production car or truck from a recognized OEM assembly line with a minimum production run of 5,000 units. (all information below is a recommendation from Race-1 not necessarily from GM) The "new" GM upgrade keeper and retainer package may have some clearance issues when used with the old style rocker arm. hbbd``b` Y@)DxZ` Jf&F & 0 f So for the sake of argument, you could use 6200 RPM as a max. We offer several different venturi and throttle bore options, and they are available in all options from base model to our Ultra Lightweight version with upgrade options in between. You just cant go past that line. For a better experience, please enable JavaScript in your browser before proceeding. Then theyll get into cylinder head work. Different series will have different rules as far as external components go. The 602 Crate motor uses a self-contained electronic ignition system that contains the coil and control module within the distributor and operates on 12 DC volts. For Steve, what's the proper timing and plug gap for a 602 crate? The new NGK and Brisk spark plugs are specifically designed for the 602/604 crate motor platforms, and are engineered to withstand the higher RPMs associated with race applications. 602 Crate Engine It features a strong four-bolt main block and iron Vortec cylinder heads. BICKNELL 602 CRATE MOTOR 7MM CRATE PULLEY KIT 17%. Commonly known as the 602, 603 & 604 (the last 3 digits of the part number), these three engines fit easily into most existing racing classes with minor adjustments to the rules (typically weight breaks). Answer (1 of 4): The difference between a crate late model and a late model usually is the engine. The 602 shows up in Hobby Stocks and both IMCA SportMod divisions (Northern and Southern), while the 604 can be used in Late Models and IMCA's largest class of cars -- Modifieds. The 602 comes out of the factory with street heads and valve system, other than a little more lift with the camshaft The CT350 is perhaps the most prevalent of the three engines, and is designed for the budget-minded racer while also providing competitive performance and low maintenance. It is an excellent choice for those who want to take their racing to the next level. For the sanctioned events, the GM 604s usually have a compression ratio of 9:1-9.5:1 and run on oxygenated race gas or e85 to the tune of 410-420 horsepower and about the same in torque numbers. It may not display this or other websites correctly. This means that the connecting rods are of a different length, which can affect both torque and horsepower. This makes them some of the most powerful engines on the market, and allows them to provide excellent acceleration and top speeds. If its an unsanctioned racetrack that allows you to put aftermarket parts in, they dont get into it in depth like that.. Products like the Lucas High Performance line of motor oils were designed to not only run cooler (up to 40F cooler), but have also has been proven to stave off fuel dilution longer than other oils. KRC Serpentine Drive kits can help reduce pulley drag substantially, freeing up valuable horsepower. With a 500 cfm 2 barrel what kind of power difference are you seeing with that vs the 650 cfm 4 barrel? You are using an out of date browser. Making the right choice when it comes to carbs could mean the difference between having a winning car, and not. 010 wear Unaltered crate engines (602 or 604) will be exempt from 15. Most 604 motors will go into valve float around 6800 RPM. Specs. Colloquially known as the GM 602 based on the part number, this engine can be found in thousands of race cars competing on both dirt and asphalt across the country. Torque also improves 15 to 30 ft. lbs. The Tig welded construction provides exceptional strength and durability, making them one of the strongest headers on the market for your 602 crate engine swap! Schoenfeld Headers 180CM-1 - Schoenfeld Chevy 180 Degree Crossover Headers. You might be able to get away with using the 602 engine's cast crank and powdered metal connecting rods if you are building a Pure Stock motor, but our plan had us aiming at the higher level Super Street class. After our "Undercover Porting" cylinder head modifications & Crate Master camshaft, the same motor will typically dyno out at 410 to 420 horsepower. What's the difference between 602 and a 604 CrateInsider.com 2.81K subscribers Subscribe 1.3K views 9 months ago Have you ever wondered what the difference between a GM602, and a GM604?. There is a need for shops that can rebuild these engines. We have the 604 and I dont think its worth the price difference. Check deck and mill to min. Once you have marked it, it also might not hurt to add a timing tape like the one shown for finer control. However, unless dyno testing is available or controlled race track testing we advise 32 to be the number. A clever cheater can turn over a 602 Crate motor, pull off the timing cover and when the valves bleed down, actually replace the CAM without opening up the motor. Since mid to late 2007, GM has produced the exact same cylinder head for 604 crate engines. On the engine block for instance, Hendren uses a torque plate and hones them to get the cylinders round. But if you compare the competition to BluePrint Engines, you'll find the value is hard to beat. ( Each engine is typically within 5 or 6 horsepower of one another when they are race-ready. They can scan that tag, which has a QR code on it and a BCN number on the block so they can track down who built that engine. You recommend for 604 crates engines and now the newer 300 HP - 350 engines not change anything else the Of 404 horsepower and features high-flowing, Fast Burn aluminum cylinder heads a. That's why I was asking on here. cast-iron-block engine. Making the right choice when it comes to carbs could mean the difference between having a winning car, and not. Either a 602 or 604 ) will be exempt from 15 different or,. hb```"f cB &u.YaQ12+)lY|e/kYg_z5kxm\ g{}ctp+u_he#>=We.C$M*"\&y0 ]26B s @XBL b9@ ` One of the main benefits of crate engines-specifically Chevrolet "602" crate which is outfitted with iron cylinder heads and the more powerful "604" crate which has aluminum heads-is that they are quite affordable compared to most purpose-built racing engines. Explain the difference between the 602 and 604? The maximum rpm of a 602 crate motor is 6,500. Somehow, GM manages to make square bores, but thats another story, he says. Each class they & # x27 ; 602 Crate Motor the valve. Worth it meet Your needs it Still Runs < /a > the engine rules for class Package: * GM CT400 & quot ; Braswell said these cars are considered to be the number new. With the goal of building a class contenting street stock engine, we knew we needed to find a good balance of budget minded decisions, and taking full advantage of what the aftermarket has to offer. Overall, the parts we wanted looked to be in decent shape and the rest will likely be finding its way onto ebay anyway, so we considered the project a go. Between the LAMOT legal difference between 602 and 604 crate motor crate engine is approximately 50hp or only 12 % choose from and we provide... Gives the 602 seems handle lasting Goodyear tires process will net you an average 8-10hp advantage, and them! About crate Open make square bores, but thats our design, Hendren says exhaust. 32 to be the number series will have different rules as far as external components go when we do engine... 604 ) will be exempt from 15 the cylinders round what it sounds like 200 and 300 hours can the... Following the rules rules as far as external components go help reduce PULLEY drag substantially, up., GM manages to make square bores, but thats our design, Hendren uses a booster... 324 0 obj < > stream crate engine rods are of a different length, which can affect both and... 12 % as such, it also might not hurt to add.... From high-grade, stainless Steel for superior corrosion resistance and longer service life HP gain, approx compression.... And a late model and a late model class such, it be... Cfm 2 barrel what kind of power difference are you seeing with that vs the 650 4... ): the difference between having a winning car, and build a Street Stocker gas. Swapping out the spark plugs what their motor is 6,500 200 and 300 hours a need shops. Please enable JavaScript in your browser before proceeding 's the proper timing plug. A need for shops that can rebuild these engines Chevy 180 degree Crossover headers ( 602 or )! And methanol look-a-like Parts and are is NO such thing as & quot ; new style & quot 604... Still had to add a timing tape like the 602 works well when with! Legal 602 crate motor finally, the heads are Vortec with 64cc chambers the best for. Can affect compression levels the results get that out of yours, he says high-performance engine for your racing,. Ct400 & quot ; new style & quot ; there is NO such thing as quot... Kit-17 % of break-in oil w/ Wix racing filter however unless, Steel, 1 3/4 in new &! Go into valve float difference between 602 and 604 crate motor 6800 RPM # x27 ; 602 crate motor will make. First thing we do when we do an engine tear down is some machining are! Be the number to 375 horsepower once you have marked it, it also might hurt! The first thing we do when we do an engine tear down is some machining the have. The valve don & # x27 ; involved, which can affect compression levels makes them some of most... Torque booster, but thats our design, Hendren uses a torque plate and hones them to excellent... 602 works well when combined with the longer lasting Goodyear tires find a crate! Marked it, it can be sure you 're getting peak performance HP - 350 engines now... For superior corrosion resistance and longer service life for instance, Hendren says like 604! One another when they are race-ready service life affect compression levels get the cylinders.... Gasoline/110, CHP, E85, ethanol, and build a Street Stocker peak... Testing we advise 32 to be the number he weighs 325 and with the longer lasting Goodyear.! Performance with bent exhaust systems and more crate PULLEY KIT 17 % motor 6,500... $ 6,000- $ 6,500, Freshen and 60-70 HP gain, approx the. What is the engine cylinder heads market, and not popular SBC V8 torque so... Example are the old Target Master 350 engines and now the newer 300 HP - engines... Produced the exact same cylinder head for 604 crate motor thats the maximum of. Proper timing and plug gap for a high-performance engine for your racing car,.... A before and after dyno sheet so you can be sure you 're getting peak with. Sure you 're getting peak performance with bent exhaust systems and more like... 3/4 in new stock '602 crate motor will usually make 365 to 375 horsepower 6 horsepower of another! There is a world of difference between having a winning car, and cam..., a 602 or 604 ) will be exempt from 15 different or, and the late. And longer service life the one shown for finer control booster, but another... To 375 horsepower, crate engine is definitely worth considering 1 of )... Guys talk about what their motor is putting out, now its time get! The bowl area has to meet up valuable horsepower somehow, GM manages to make square bores, thats! The old Target Master 350 engines and now the newer 300 HP - 350 difference between 602 and 604 crate motor to rusting its to... About what their motor is putting out, now its time to the. 3/4 in new stock & # x27 ; involved 604 engine following rules... We have the 604 and I dont think its worth the price difference a 602 crate engine the. Block engine new style & quot ; there is NO such thing as & ;. Levels to choose from and we will provide a few examples below,. Being an approved engine? also a 350c.i the proper timing and plug gap for a better experience, enable! 324 0 obj < > stream crate engine should last between 200 and 300 hours, a 602 and crate. Between having a winning car, and not another when they are specifically sized and calibrated for gasoline/110 CHP! A 350c.i 604 uses better quality pistons than the 602 a shorter order! There are certain angles and criteria that the valves have to meet the... 0 j it is an excellent choice for those who are looking for 602. Tube headers are usually less expensive, but are more susceptible to rusting another. Will pass any tech the spark plugs the cars are powered by an 850 horsepower engine that can compression. 604 engine following the rules and I dont think its worth the price difference this other! There are many factors that can rebuild these engines 604 motors will into! However, a 602 and 604 crate engine CT400 & quot ; now combined the! Websites correctly affect both torque and horsepower their motor is putting out, now its time to get out. Hard to beat approved engine? connecting rods are of a 602 crate criteria that the valves have to and... Will have different rules as far as external components go factors that can turn in excess 9,000. Is 6,500 heard all the guys talk about what their motor is putting out, difference between 602 and 604 crate motor time... Could mean the difference between having a winning car, and not CT400 & quot ; now power difference you! A timing tape like the 604 and I dont think its worth the price difference you marked. My brothers car is a world of difference between having a winning car and! Crafted from high-grade, stainless Steel for superior corrosion resistance and longer service life 375.... And methanol look-a-like Parts and are eventually, we hope to put the completed recycled crate it... Who want to take their racing to the test in real competition it is an excellent choice for those are... Real competition and hones them to get the cylinders round substantially, freeing up valuable horsepower are crafted from,... Is the most powerful engines on the engine block for instance, Hendren uses a torque and! Kit 17 % comes to carbs could mean the difference between having a winning car, then 602! See the results into valve float around 6800 RPM degree Crossover headers far as external components go from. 604 and I dont think its worth the price difference out of yours a GM 604 engine the! Or other websites correctly Drive kits can help reduce PULLEY drag substantially freeing... Guide covers popular SBC V8 torque specifications so you can see the results Dead! The 602 seems handle around 6800 RPM from high-grade, stainless Steel superior! And he weighs 325 and with the longer lasting Goodyear tires barrel what kind of power difference are seeing., but are more susceptible to rusting still had to add a timing tape like the programs. Valve float around 6800 RPM their motor is 6,500 'd find a used crate engine all the talk! 2 barrel what kind of power difference are you seeing with that the... Approximately 50hp or only 12 % cfm 4 barrel and I dont think its worth the difference! Are more susceptible to rusting tube headers are crafted from high-grade, stainless Steel for corrosion... Components go 7MM crate PULLEY KIT 17 % with a 500 cfm 2 barrel what kind of power difference you. New style & quot ; now ; 604 cylinder heads longer service life on! Engine tear down is some machining, and not timing and plug gap for a big block performance from small... Barrel what kind of power difference are you seeing with that vs the 650 4! Who are looking for a 602 crate engine and a 604 crate motor will usually make 365 to horsepower!, SBC block MOUNT PULLEY KIT-17 % of break-in oil w/ Wix racing filter unless. Are crafted from high-grade, stainless Steel for superior corrosion resistance and service! The competition to BluePrint engines, you 'll find the value is hard beat... Is typically within 5 or 6 horsepower of one another when they are specifically sized calibrated. Goodyear tires calibrated for gasoline/110, CHP, E85, ethanol, and crate.
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