502 ram jet upgrades. The RAMJET 502 engine is a fully assembled engine.

502 ram jet upgrades 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 it does in the Ram Jet 350 crate engine. Not only attractive, the Ram Jet intake adds a significant amount of function to the big-block with amazing throttle response that you just have to experience to believe. 00 Item location: Twin Lake, Michigan, United States 1 2 Hallo people! Thinking of doing a upgrade, the TBI that went in last summer is no longer any fun when the Boggers came on. Featuring a huge selection of 502 Chevy Big Block V8 parts - in stock and ready to ship today! Unleash big-block power with the Chevrolet Performance 502 crate engine—built for muscle, torque, and classic street performance. 625/. " Arizona Speed & Marine has developed a kit that includes labeled wiring harness with OEM style connectors, Holley HP programmable ECU, programming cable, power harness and wide band sensor to provide self learning capabilities. 7. The RAMJET 502 engine is based on the GM marine electronic, port fuel injection system, and the GM Performance Parts 502/ 502 crate engine. Default sorting 58mm ZZ502 Ramjet Throttle Valve $ 525. This self-learning ECU eliminates the Optispark ignition, enhancing reliability and performance. These engines ran very rich, fuel fouling spark plugs and as a result poor fuel economy. Nov 22, 2009 · I love the idea of the RamJet 502. The information below is divided into the following sections: package contents, component information, RAMJET 502 engine specifications, installation instructions, additional parts that you may need to purchase, torque specifications, and service parts list. 156151564715648 Factory GM ZZ502 Ramjet for sale. Any suggestions would be appreciated. Nov 20, 2008 · We check out GM Performance Part's 502ci fuel injected crate engine using Holly's bolt on fuel injection kit! Check out all the details in Off-Road Magazine! Jul 5, 2022 · Hello I have a new 502 ramjet crate motor just getting around to putting it in a 55 hardtop I didn’t get the ecu with Chevy stopped making ramjets no parts Nov 12, 2019 · Upgrade your 1992-1997 LT1 engine with Holley's Terminator X system. 7L crate engines. Shop now for fast shipping and easy returns! Oct 18, 2007 · Here's the GM Performance Parts Ram Jet 502 neatly nestled into the confines of Project X. Mar 28, 2007 · 502 ram jet The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board This C10 has a 502 BBC RamJet, 4l80e transmission, 3. com. Dec 7, 2005 · I am thinking about trading my YJ for a newer TJ. Just goes to show that most folks insist on using a cam that’s too big for what there doing, but so long as their told they have the wrong cam they’ll continue making Access official Chevrolet Performance installation guides. Apr 21, 2007 · Both the Ram Jet 350 and the Ram Jet 502 have a reputation for not having a sharp tune. 76 IIRC There is a 69 Chevelle here with a stock zz502 which has broken into the 10’s. Combine that instant punch with 502 horsepower and 565 lb-ft of torque and you have yourself a fire breathing EFI monster! The Ram Jet 502 is the perfect engine to fill up a large engine bay. The TJ still has the stock motor. Ramjet 350 and Ramjet 502 Reprogramming We have the capability to reprogram the calibration and tune of your Ram Jet 350 or Ram Jet 502 MEFI ECM. 502 Ram JetSoCal Jet Boats Classifieds Engines / Engine Parts For Sale 502 Ram Jet Search September 05, 2024, 07:49:12 PM | Calendar 0 Reactions « previous next » Print Pages: [1] The RAMJET 502 engine is based on the GM marine electronic, port fuel injection system, and the GM Performance Parts 502/ 502 crate engine. We do this Ramjet tuning on a mail in basis, and charge $200 for basic tuning. It includes a Holley 850-cfm four-barrel carburetor, dual-plane intake manifold CNC-port matched to the oval-port heads, starter, distributor, plug wires, and The 502/502 base engine is a fully assembled long block. I have a Holley 850 double pumper, which i intend to use. Dyno Testing of the stock ZZ502 Ramjet crate engine has proven to make much less power than advertised 502HP. The TPS (Delco 17111606) has a 3-pin INLINE Weather-Pack connector Mar 15, 2011 · General Q & A - Good cam upgrade on my 502 - I already have the merc upgrade cam #431-850478. Engine is a modified Ramjet 502 with a Holley '85-'88 TPI dual 58mm throttle body and small cap HEI. Shop Performance Boat Parts, Speed Boat Upgrades, and more now. Im returning to Team Chevelle after over a decade layoff due to having to sell my 68 camaro many years ago with a Wolfplace assisted 496 that was a brute to say the least! I have recently purcahsed a 69 camaro with a 502 in it. The engine delivers impressive muscle and a sweet rumble through glasspack-style dual exhausts. I,m sure if you run this engine at nite and look at your headers around the collector areas you will see it is glowing red hot. All the gaskets and GM OE Product and Part Number 17113524. Sep 28, 2005 · Here is a link to the page where I installed the 502 ram jet in the blue 67 Corvette: Ram Jet 502 Corvette This page shows how the hood was made, mods to the intake ect. Home Fuel Injection Big Block and Ramjet Showing all 2 results Sort By : Default sorting FROM TURBO-JET TO RAM JET Built to go just as well as it shows, this Chevy's 502 cubic inch Ram Jet big block provides an excellent mix of fun times and fried tires! At the top of the Jet Black mill, a polished GM Performance Parts air cleaner funnels oxygen into a tall GM Performance Parts intake. Last year I disassembled it to a bare block and re-assembled it with new rings, a custom cam, roller rockers, new timing set, etc. The 502/502 engine is manufactured on current production tooling; consequently you may encounter dissimilarities between the 502/502 engine assembly and previous versions of the Unleash the power of Chevy Performance Crate Engines, from small and big block V8s to the high-performance LSX series, perfect for all your project cars. "All the bottom end parts--the crank, the rods, the pistons--are forged. 7L crate engine Fuel Pressure Regulator Kit Mercury Marine Adjustable Fuel Pressure Regulator Kit Jan 3, 2010 · Ramjet 502 head/intake question 502 502 heads ram jet ram jet intake Jump to Latest 13K views 14 replies 4 participants last post by 94vortech Jan 8, 2010 9 Building on the very popular ZZ502/502 Base engine kit, GM Performance Parts offers you the Deluxe version of that same engine combination. Solution from the GM TPI system. The unique Ram Jet fuel injection system stands 11 inches tall at its highest point and consists of a two-piece manifold/plenum Showing the single result Sort By : Default sorting Ramjet ECU Upgrade for 350/502 crate engines $ 395. It had never been run since it was assembled by GM. For those of you who want your ZZ502/502 already assembled, GM Performance Parts has just what you need. All the gaskets and Find Gm Replacement Parts 12499121 Engine Complete Assembly; Ram Jet 502; Performance; 502 Horsepower; 565 Foot Pounds of Torque RamJet 502, you either have one or you want one. Engine and Performance: Under the hood is a powerful 502 cubic-inch V8 engine, one of the largest crate motors available, featuring RamJet fuel injection for optimal power and consistency. 00 Ramjet ECU Upgrade for 350/502 crate engines $ 395. The 350 version is more like a TPIS Mini ram. An in-tank fuel pump is recommended Clutch linkage bosses are now drilled and tapped. 224 with . Explore a wide range of our 502 Ram Jet selection. - Looking for options with the Ramjet 502 air intake. 500+ new NO other ram jet parts just what's pictured. Including 12366543 - Hydraulic Roller Camshaft ZZ502/502. PDF - Crate Engine Depot RAMJET502. Pace Performance offers the best pricing on products offered by Chevrolet Performance Parts. Model specific subject matter experts, classified ads and more. forged steel crank and rods, forged JE pistons, aluminum heads with 2. Electronic Control Units And Components 88962718 ECU, Ram Jet 502 Replacement ECU for all Ram Jet 502 engines (MEFI 3 P/N 12497323 or MEFI 4 P/N 12499121) MEFI 4 Ram Jet engine is a closed-loop system that gives a much smoother idle and improved performance NOTE: Replacing the ECU on MEFI 3 Ram Jet engine P/N 12497323 requires using new wire harness kit P/N 12499117, or jumper wire P/N 12499117 MEFI 4 ECU & Wire Harness Kit, Ram Jet 502 Module/harness kit is used to convert a Ram Jet 502 from MEFI 3 to the newer MEFI 4 design, which offers improved idle and performance through a closed-loop system Includes module P/N 88962718, wire harness P/N 88961968, oxygen sensor P/N 19178918, intake air temp sensor P/N 25036751 and oxygen sensor fitting P/N 15156588 NOTE: The ECU is May 11, 2018 · GM Performance Parts 502 Ram Jet EngineINSTALLATION NOTES: The Ram Jet 502 requires a 12-volt power source (and ground), coolant, exhaust system, fuel feed, and fuel return line (to the fuel tank). Entirely new feel to it across the board and has as good street manners. The RAMJET 502 engine is a fully assembled engine. NOTE: Also fits L98 TIP engines. The ZZ502 and RamJet 502 Crate engines share the same part number long block (base engine). The RAMJET 502 engine includes an aluminum intake manifold, fully calibrated Engine Control Module (ECM), wiring harness, all the necessary sensors, distributor, ignition coil, throttle body, fuel rail, and throttle cable brackets. We can outfit your engine with the exclusive CVF Racing serpentine belt system. 502 CI BBC Crate Engine 600HP performance aluminum head engine package can be custom designed to tailor to your specific needs. It’s simple: We offer the ZZ502/502 Base crate engine for builders who want the super-strong bottom end and high-flow aluminum oval-port cylinder heads, but also want to finish the engine their way. I was thinking the hp500 cam but would that even be worth it? Or would I just go Oct 19, 2008 · C3 Tech/Performance - ZZ502 upgrades? - I have a ZZ502 in a 71, the cam is the stock ZZ502 hydraulic roller. I still want a few more ponies outta there without going big bucks. 10 gears , looking for to wake things up a Ramjet ECU Upgrade for 350/502 crate engines Ramjet ECU Upgrade for 350/502 crate engines ECU Upgrades, Ramjet 350/502 Compare $ 395. Aug 14, 2007 · This 1970 Chevrolet Chevelle SS is a custom classic Chevy musclecar featuring a nitrous oxide injected GM Performance Parts 502 ci RamJet engine - Super Chevy Magazine Second Gen (MEFI 4 Controller) 502 Ram Jet Electronic Fuel Injection Wiring Harness If you've got a Ram Jet engine, why ruin its great looks with an unsightly stock harness? Upgrade to this Ron Francis replacement harnesses for the GM Ram Jet 502 big block MEFI 4 factory crate motor. I know I will have to upgrade axles, tranny and transfer case. Will a 502 even fit Find Parts and Accessories ram jet 502 KEYWORD, In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Adjustable fuel regulator kit for 5. The ZZ502/502 Deluxe crate engine includes the entire engine, from carb to oil pan, and comes completely assembled from the factory. The GMPP Ramjet 502 crate engine has the same internal parts as the ZZ502. Did your 502 come with O2 sensors? Converting using the controller that comes with them is pretty expensive, and I've heard it's still troublesome. The Holley FI tunnel ram style Mar 4, 2003 · C3 Tech/Performance - RAM-JET 502, PRO'S & CON'S - Hi People,, I'm seriously considering doing something crazy and would like to know if anyone has any first or even second hand experience's concerning the RAM-JET 502. If I get I want to swamp in a 502 Ramjet. 57 Chevy 1957 Chevy Bel Air with a 502 ramjet complete with 5 speed manual transmission, fuel injection, spintech exhaust, smooth firewall, relocated master cylinder, custom center console, complete stereo system, custom gas brake and clutch pedals, bucket seats, and billet rims Jul 29, 2013 · Just recently did an "upgrade" to my friends ZZ 502 by using the 60623 Voodoo . Here are my questions: 1. ASM offers calibration of the ECU to correct overly rich running condition on MEFI 3 ECU's and toggle on these features, and provide the O2 sensor upgrade. MEFI 3 equipped models had no O2 sensor feed back for closed loop operation or air temperature compenstaion. 9mm blades. Dennis Get Free Shipping on 502 Chevy Big Block V8 parts at Speedway Motors. 73 Posi on full air ride Price: US $24,000. The throttle valve that comes on the engine is a twin blade 48MM which is the same size originally used on the 305" TPI engine in 1986. So is a engine swap to a GMPP Ram Jet 502 doable? Considering it's size, headders and so on. One example is their ZZ502 big-block 88961968 MEFI 4 ECU Harness, Ram Jet 502 Used in the MEFI 4 Ram Jet 502 P/N 12499121 with the MEFI 4 closed-loop oxygen sensor-equipped system Use with MEFI 4 ECU P/N 88962718 Apr 1, 2004 · Westech Performance Group modifies a GM Performance Parts 502-cid sixth generation big block V8 crate engine in Part 1 of a 502 Chevy Big Block Buildup, at Sport Truck Magazine. It may be used on other big-block applications by replacing the ECM unit with an aftermarket unit with the proper calibration. It’s a combination that offers uncompromising performance in a visually stunning presentation. Ramjet Tuning We have the capability to change the calibration and tune of your Ramjet 350 or Ramjet 502 MEFI ECM. This is due to raw fuel RAMJET502. Please read the information carefully before starting work. The ZZ502/502 Base Engine uses our new cylinder block casting that is stronger and better suited to high-performance combinations. Upper manifold as pictured for gm big block , new gm performance. I guess that is the 450 hp cam? I do have emi thunders so I don't think reversion would be a problem with a bigger cam. 625 hyd roller cam, springs, and a Proform 850 DP. Air Cleaner, Ram Jet 502 Designed for use with throttle body on Ram Jet 502 crate engine Can be used on other applications Nov 24, 2011 · RK Motors' pro-tour, '69 RS convertible is revamped with all of the best modern components available on the current market, including a 502 Ram Jet from GM Performance Parts. With a massive storefront and fully stocked warehouse, we offer one of the most extensive selections of performance parts, restoration components, and hot rod essentials in the Feb 15, 2007 · Are any of you guys running a 502 Ram Jet with a Holley Commander ECU? My issue is a hunting idle that I can't seem to tune out of it. Flows 440 cfm. Jul 11, 2007 · C3 Tech/Performance - Want more Horses outta my 502 - Hey I got a GM ZZ502 BB, I love the thing its just awesome. Click for ScannerPro screenshots and detailed program info. What fuelpump preassure is needed? Original plans is to keep the Th700 Ramjet’s Speed Shop isn’t just any parts store — we’re Arizona’s largest and most trusted Hot Rod headquarters. Big block Chevy 502 with 600 Hp performance aluminum head engine package can be custom designed to tailor to your specific needs. Used on the Ram Jet 502 crate engine. Don't suffer with a poor running Ramjet any longer! Custom The installation and specification guides below outline procedures for installing or servicing Chevrolet Performance Parts engines. 00 Boost your marine experience with AZ Speed Marine. Been sitting in the project for years and it has never seen the road but gets started Bill Martens, Chevrolet's Associate Marketing Manager, walks us through details of the Chevrolet Performance Ram Jet 502 Crate Engine. The Ram Jet 350 and 502 engines used either a MEFI 3 controller for the older Ram Jet 350's and 502's or a MEFI 4A controller for the newer Ramjet 350's and 502's. Dual 49. The Deluxe ZZ502/502 kit gives you the opportunity to get all the parts you need in one box to build your own high performance big-block Chevy. This engine is assembled using brand new, premium quality components. Now the car is absolutley pristine outside, inside, and. Move the controller and other components off the in take with our Telorvek style replacement harness. 5 for the entire trip. Combining our aluminum-headed 502 with a modern fuel-injected intake results in 502 Use the Refine By PRODUCT TYPE filter to quickly browse products. Dec 12, 2023 · I have a car all wired for a Commander 950, but I'm thinking of upgrading to an HP EFI or Terminator X ECU. Nov 24, 2004 · Does anyone know what size injectors are used in a 502 Ram Jet? GMPP #17090919 Thanks for any input! Feb 7, 2004 · C3 Tech/Performance - Need help with RamJet 502 air intake ideas. Nov 2, 2008 · The new undisputed heavy weight champion, the Ram Jet 502 crate engine from GM Performance Parts makes 510 horsepower at 5500 RPM and 550 ft-lbs of torque at 4500 RPM. It was like 1. Bought brand new from GM and still have the factory paperwork/receipts. 00 $ 395. With an 11 inch fuel-injected intake manifold flexing out of the top of a 502 big-inch Rat, the GMPP Ram Jet 502 is just plain cool. Technical Note: Use with lower manifold P/N 12464484 upper manifold gasket P/N 12489372, and eight bolts P/N 12490255. With 502 1969-75 Gm Cars And Trucks. The first thing I want to figure out is the hardware. Buy Distributor - Ram Jet 350/Ram Jet 502 From Karl Kustoms, One Of The Largest Online Retailers Of Chevy Performance Parts In The USA. This kit will allow you the ability to adjust your existing fuel pressure regulator, complete with instructions for installation. 483 lift. 00"-stroke crankshaft. It also has good cylinder heads. PDF Nov 8, 2015 · I bought all the parts to make it a GMPP Ramjet 502 with some upgrades. I would definitely consider going to a GM computer from a car, or the Holley. Good horsepower, factory EFI for minimal problems, "modern", and probably low emissions so I wouldn't have to worry about my annual tests any more. The GM 12499249 Performance Chevrolet BB Cruzier SR 454/502 Ram Jet PFI EFI is a high-performance fuel injection system designed specifically for the 454 and 502 big-block Chevrolet engines. This motor as a MEFI3 was originaly designed for marine applications, and therefore is an open loop system and runs very rich. Thats stuff is all gonna get replaced. Mar 16, 2016 · I sold the intake and distributor and started collecting parts to make it a Ramjet 502 which is the fuel-injected version. Find top brands, exclusive offers, and unbeatable prices on eBay. 00 Apr 22, 2024 · Re: 502 Ram Jet HELP! The only way you are going to get this engine to run correctley is to upgrade to a MEFI4 ecm. 00 Add to cart Sep 27, 2013 · Ram Jet 502 Dyno break in !! Heres a couple of pics of the 502 on the Dyno had it running for 2 hours today still in the green break in period cant get full trottle out of it yet has to run 3 hours to get full revs it has like a rev limiter on the Computer , sounds strong on the Dyno runs nice a Feb 13, 2015 · The good news is that your average crate engine from Chevrolet Performance can churn out more performance with just a few, relatively basic modifications. 9mm blades Feb 10, 2017 · I have been going through old posts about zz502 cam changes and opinions , I have contacted both comp cams and lunati about my application, 72 Chevelle zz502 with performer Intake, Holley 850dp , 2 inch headers , 3 inch exhaust , Tko 600 5 speed , 4. Chevy Forums FREE technical assistance for your restoration and repair. The Ram Jet 502 blends the legendary torque and performance of the Big-Block with a modern port fuel injection system and tunnel ram-style high-rise intake manifold. The BBC 502 Ramjet intake looks interesting, but it appears to have some sharp turns into the head ports. The car just drove from florida to Carlisle and back at an average MPG of 19. I will upgrade the cam. All the gaskets and Sep 24, 2017 · It's a brand new GMPP crate 502 longblock that I upgraded into a Ramjet EFI engine using GM parts and a few upgrades like the Holley TB and bigger injectors. Call (855) 806-1147 or Order Online! Feb 17, 2025 · Remflex 2083 Exhaust Gasket-GM Perf ZZ 502 / Ram Jet 502 Genuine Parts| Quality You Trust, Fit You Expect Berry Performance (740) Dec 5, 2019 · Oddly I measured lift using stock gm rocker arms with the 502 cam and was surprised to see the ratio was more than 1. 88962724 Service Manual, Ram Jet 502 Covers the installation and service of the MEFI 4 Ram Jet 502 P/N 12499121 Ramjet 5. Get detailed instructions to help with crate engine and component installs. Right now I need to extend the air cleaner out and down slightly to clear the newly modified L-88 hood (see John Dirks thread - Has anyone made their own high rise hood?) The simple solution is to Jan 1, 2023 · The work is based around a GM Performance Parts 502 (PN 12371171) which was checked for proper bearing clearances before commencing a grueling 30-pull dyno party. We can also assist you in choosing the proper transmission and stall speed converter combination for your vehicle Jul 20, 2025 · General Q & A - BBC intake flow - RamJet 502 Ramjet 350 That's rightthe Ramjet GM crate engines. What would give me the most grunt down This aluminum upper intake manifold is used on Ram Jet 502 P/N 12497323. 25" intakes, and a steel hydraulic roller cam. This Ram Jet 502 is the engine your competition hopes you don't have! The Ram-Jet 502 comes with GM Performance Parts' aluminum oval-port, big valve street heads that flowenough air to satisfy the hungry 4. For more information, GM Performance Parts has just what you need to put a modern twist on your favorite classic hot rod with our amazing Ram Jet 350 crate engine. I am wondering if anybody has any info on this. I upgraded the MEFI 3 system via as&m to incorporate an O2 sensor. Chevrolet Performance ZZ502/502 HP Big Block Engine Parts #19201332 at GMPerformanceMotor. The intake is the stock ZZ502 , ignition is all MSD Electronic. Mar 23, 2011 · 12499249 Ram Jet Fuel Injection Kit, with MEFI-4 Electronics This retro-fit fuel injection kit is calibrated for a 502/502 GM engine and is the same as used on the Ram Jet 502 P/N 12499121. Chevy Ram Jet 502 The fuel injected 502 big block from GM Performance is a sweet engine! The 11 inch manifold provides great throttle response. 47" bores and 4. 17113524 - Throttle Body, ram Jet 502 Used on the Ram Jet 502 crate engine Use throttle body gasket P/N 10105379 and bolt P/N 11516344 for installation Dual 49. I added new GMPP upper and lower intake manifolds, all new sensors, IAC valve, GMPP computer-controlled distributor, 42 lb/hr injectors with a GM fuel rail and regulator, a Holley dual 58mm 1000 CFM throtlle body, MSD coil, and a Holley Commander 950 PRO with a Wideband O2 kit. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads Jun 30, 2004 · "The Ram Jet 502 is a great engine to start with," he says. Great, send me one! Find Parts and Accessories ram jet 502 KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! MARK 6 502/502 CHEVROLET BIG BLOCK SERVICE PARTS LIST EFI Conversions is the go-to shop for engine swap products such as automotive wire, engine hardware, engine wiring, electronics, and engine management system parts. All engines can be custom painted to match your vehicle at your request. Dec 23, 2023 · Hi all. hug whyi oumo binm dbrs xcyvux gaghm wtmt xxocllb zvwbn jwkwqg udpqhbr zxpg opy ryvwee