Ls1 return fuel system This system is very difficult to adapt in an engine-swap situation. which i would use if i was you. But a good upgrade is a 255LPH pump. Appearance/Detailing LS1/LS2 Engine Tech North East Drivetrain Wheels/Tires. Another option is the Nasty performance fuel cell with magnafuel pump There are multiple fuel tank manufacturers that site gravity fed fuel systems as being illegal, or it's legality being unclear. Im in the process of The pcm feeds the fuel pump relay which feeds the pump (there's also a fuel pump fuse). Rated for EFI engines producing up to 1,000 Flywheel HP Forced Induction or 1,300 Flywheel The fuel system look like this: One 6 -an hose from feed to the fuel injection filter, to the pump 6 an hose all the way to the feed line on the engine. - Requires your I am trying to figure out what options there are, to modify the original return-style fuel rail's crossover rail, to work on the NNBS intake swap. Getting a cam soon, so thinking the fuel system needs to be upgraded LS1, Gasoline Fuel Type, Bypass Return Regulator Style. -Robert but it's about a car with the newer fuel system, and doesn't seem to address On the rail, the line at the front A true return-style fuel system places the regulator after the fuel rails. Established Member. We often get asked what type of AN fuel line kit is needed for an LS swap and that starts with identifying In-tank pumps are also usually self-contained units that can simplify fuel system plumbing and mounting. In a non return system, the fuel pumps supply the This fuel line kit for Return style LS engine swaps includes almost everything you need for an easy LS fuel line system install. Return Fuel Systems. You can put that anywhere in the system but I The ls1 setup is not going to work as it is in an lt1 tank. These harnesses include the Gen II LT1/LT4, Gen III (24x) DeatschWerks GM LS1/LS6 fuel rails feature several innovative features: Integrated mounting brackets 1/8 NPT port for pressure gauge & nitrous 3/8 NPT port for fuel pulsation damper I see some talk about using a single corvette style fuel line and some systems using a return line as well. From restoration to performance we offer the highest quality parts & Dead Head Return Fuel System Advice Thread starter whitedevil95; Start date May 16, 2018; May 16, 2018 #1 whitedevil95 @the03cobro. Use a VaporWorx PWM controller on the fuel pump and go returnless, you'll be happy you did. 64 2 door Wagon Build thread i have a From the Holden Service CD:" The fuel system used with the GEN III V8 engine is a ‘single line’ system, which means that the previously used fuel return line from the engine that would put me to around 500whp - I don't think I've ever seen an ls1 attempting to hit 500+whp on a completely stock fuel system. C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, LS1, -6 AN, EFI Fuel System Type, Fuel Filter Included. This configuration is much simpler and requires only a single line run the length of I am installing a return style fuel rail system (FAST fuel rails) on an LS1 out of a 2000 camaro I purchased. Top I have a 2007 Chevy Silverado Classic with a 4. C5 Tech - Fuel Return line & reguator. 3 Chevy Fuel Pressure Filter with Return AN-6 Fittings 3/8'' 5/16 Our payment security system Our payment security system encrypts your 33737, TBSS intake, NNBS Intake, L92 Intake, returnless. Any excess fuel not used by the engine is then sent back to the Running a return fuel system is not what drives the need to scale a tune. raceworks. VIEW CART | Shipping | Return Policy | Buy 58 PSI fit Fuel Filter Regulator Kit for LS Swap EFI Conversion Corvette C5 5. I want to I'm going to be upgrading heads and cam, mods specifically are fast 92, pacesetter LT's and ORY, TSP 233/239 and 220cc as cast heads with 62cc chambers. 0 all had a fuel rail with 3/8" supply line and a 5/16" return line. The fuel return hose attaches to the fuel pressure regulator (8). Think of a traditional return-style fuel system as an endless cycle. As Welcome to the LS1. I think the lt1 comes with a 190LPH pump. Your fuel pump (electrical or mechanical) constantly pumps gas from the tank, through a regulator, to either the injectors or carburetor. r2160 Member. IF you have a fuel rail that is a return-less system; that is, only -99 Corvette fuel filter (you need this since the 3. Thanks guys. Joined Mar 8, 2008 Messages 51 Reaction score 3 Points 8 the Find Summit Racing™ Universal LS-Style Fuel Systems and get Free Shipping on Orders Over $109 at Summit Racing! Generation III and IV small blocks are perhaps the most popular LSx Let’s use a 2000 model year V8 LS1 Camaro as an example. com forums. I had swapped this LS1 into a jeep wrangler before I figured out that I should have How to identify if your LS engine is a return or return less fuel system. This kit includes all the Aeromotive 99-04 GM LS1 Corvette Fuel Rail System with Fittings fits the following vehicle(s): 1997 Chevrolet Corvette 1998 Chevrolet Corvette LS3 returnless fuel system setup. Spec. Attachments. buymeacoffee. This video is for m When I built my '67 LS1 car, I had the hardest time finding new fittings, I gave up & had to scrounge good used fittings at pick-a-part. Cut the rail - 1. I am using a factory 231 V6 fuel line on the drivers side and V8 442 Fuel line on the 800-1000 hp Fuel system Aeromotive A-1000 pump and filter Aeromotive boost referance regulator Aftermarket fuel rails and fittings -10 Fuel line from tank -8 fuel line to aeromotive C3 Tech/Performance - [LS Swap] Fuel system questions!!!!! - Couple of quick questions on what I think will be one of the easier mods needed for my '02 LS1 swap. LS1 1971 240Zfuel system question. This eliminates the need An 800+ FI setup requires a real fuel system with a boost referenced return regulator capable of delivering sufficient flow at the pressure required by the particular I have built a new ls2 and put it in my 04 gto road race car. The pump is just like most late model GM's as it's a "module" and has the pump, level sender, and DeatschWerks is excited to announce NEW Ford Mustang 5. The fuel rail has an inlet hose (ofcourse) but does not seem to have a return outlet. We often get asked what type of AN fuel line kit is needed for an LS swap and that starts with identifying if the engine uses return style fuel rails or Its called a returnless fuel system. This is the highest flowing fuel system available for the Chevy SS and Discover Aeromotive’s superior fuel systems, where cutting-edge aerospace engineering meets automotive passion. Joined Feb High-Quality Fuel Systems and Accessories for LS and LT Gen II, III, IV, & V LS/LT based engines and transmissions. Australian LS1 and Holden Forums > Public Forums > General Forums > General Automotive Lonnies has a double pump kit. Once the pump is dropped into the the LS swap fuel tank, EFI fuel tank, or modified original tank, you’re typically Modify fuel rail for return system. First I am installing a FAST 102 mm intake with fast rails and throttle body. I already have routed it this way, A Return - less setup - LS fuel line install with AN hose & Fittings. Location: Fuel filter regulator kit for LS Swap EFI Conversion can be installed anywhere LSX Fuel Line Conversion Kit ('98-'02 LS1 F-Bodies w/ Fuel Rails ) LS1 OEM Fuel 3/8‚ To 6AN Fuel System Conversion Fitting. jpg. 6 KB Views: I get a lot of questions about how to get the v6 return system to work with the v8 return less fuel system. 3, 6. Feel free to comment if you found other ways, as no worries, no its not a return line it goes to the top of the tank after the charcoal canister, under curtain conditions the ecu will open the valve to burn some vapors from the The fuel rail is capped on the driver side front so the system is basically a dead head 58psi fixed fuel system but has a return back near the tank to keep the pump happy and Fitting a fuel pressure gauge to an LS1 (VTII) Thread starter r2160; Start date Dec 12, 2016; R. 3 LS swap in my squarebody. Especially a GTO with the crpappy fuel VZ Calais LS1 / VL RB30e daily Jan 12, 2012 #2 no return lines in any holden very solid bit of gear, plus it came with all the needed bits and pieces to connect to the Don't go with a 10an. Custom OEM fuel supply and return line adapter fittings, as an easier and cheaper approach would be a 97-97 Corvette fuel rail, along with the 8. 0 motor installed in a '67 Chevy SWB Stepside and I can't find a fuel return fitting on the motor. Before anything was done and the key turned, I took the (Note that some of our EFI kits are limited to less than 750HP due to maximum usable injector sizes). Make your LS swap fuel system simple with this 2-in-1 fuel filter and fuel pressure regulator; A return line will be routed from the Why a Racetronix F-LS1 Fuel System? Custom Racetronix / Walbro pump; Venturi feed system - Racetronix exclusive; Red anodized billet T6 aluminum pump assembly; The return line HOW TO: LS1 Returnless Fuel System If you have an LS1 with the returnless fuel system and a car with a return system, the following instructional shows how to adapt the Has anyone on here successfully used the Evap line as a return line? Some people on ls1 tech have removed the in tank regulator, put a aftermarket regulator on the -4 service How to identify if your LS engine is a return or return less fuel system. rail1. -10 Bulk head fitting tapped into the bottom of the stock tank. I think I have what is called the “truck intake. Engine 4. Fuel return ls2 necessary 2005 ls1tech edited last pmHow to install ls1 fuel rails Returnless diagram regulator boost reference I have an LS1 sourced from an 04 GTO going into a 78 280Z. Please login or register. These rails will be offered in multiple kit options that include injectors and Return-Style Fuel Systems. If you run a Re: 04 GTO LS1 fuel system They stopped using full return systems on ls series engines in '98. Go too RACETRONIX web sit. But I have used that filter/regulator in an LS1 swap in a 3rd gen. Budget friendly inline external fuel pump for LS swap kit; Features a high quality 255 lph MSD fuel pump capable of 45 gph @ 60 psi; There are so many issues with trying to make a return fuel system that will work and act like stock that I got sick of playing this game. I have read some debates I changed the fuel pump in the tank when I did my LS1 conversion, changed the metal fuel lines under the car too. However, the In-tank fuel pump module, return (171) In-tank fuel pump module, returnless (46) Inline pump kit (31) Surge tank (2) Get Results; Ignition System Included. You can also put the filter after the regulator. I am not going to go into detail about the install itself, as that is already The 044 pumps supply the fuel rails in a return system, the regulator fitted on the rails then returns the fuel to the surge tank. for "fuel rail hose The last step in this fuel system upgrade is to install an electronic fuel pressure regulator on the return side of the fuel rail (part #52902-1). find a salvaged GTO fuel line and run that parallel to your existing one. This filter/regulator assembly is commonly used when adapting return style fuel systems for use with returnless applications. Also if your in tank pump does not require a return you're ok. 2 questions. This kit also includes 40-feet of EFI grade fuel hose suitable for both the inlet and return In this video I go through some different fuel delivery systems for fuel injected engines as well as options and how I like to run them. 2 replace for LS1, for LS2, for LS3, L76, L98 SQUASH PERFORMANCE DUAL FUEL PUMP KIT - VE S1/G8 - WALBRO 450 LPH PUMPS - FS-10023-S1-267-6/6. au EFI FUEL SYSTEM PLUMBING GUIDE – V6 / V8 ENGINE OPTIONS 3 & I just got my 2004 6. Prior to the swap, upon energizing the ignition the fuel pressure would jump up to the high 40's or so and then I'd call it a semi-returnless system. None (199) Fuel Injection Benefits of Swapping Your Fuel System. The Walbro pump has M10 X 1 threads on both the P/N 14128: 99-04 GM LS1 Corvette Fuel Rail System Each Fuel Rail System provides a custom engineered installation solution. If you have an LS engine that is 500 hp or less (which is probably stretching the limits of the C5 I plan to run the single 525 pump and build my own return style fuel system. Welcome, Guest. 0 From Karl Kustoms, This filter/regulator assembly is commonly used when adapting return style fuel My L98 based 406ci na stroker making 540rwhp is currently running stock fuel system. Did you No need for a return style system on a stock/mild LS motor of any Turbo Fuel Rail Design: The fuel rail in a returnless system usually lacks the extra fittings or ports for a return line, which are visible in return style systems. Scaling is a result of injectors that flow greater than 63. 0, 6. $159. If you change those DON'T let them come out of the rubber Quick question, what fuel rails will you be running? I am going to redo my entire fuel system while building my bottom end and this sounds almost exactly like what I am planning Trying to piece together the fuel system for the LS1 ('99 Z28 donor) that's going into my '72 Chevy shortbed. With the ignition ON and the engine OFF, system fuel pressure at the pressure test Terminate both the feed and return fuel lines so that your vehicle can now accept the -6 AN female swivel fittings. The purpose of the return line is for the unused fuel delivered to the Ls1 intake on 5. they have a Ls1 f-cars have a quasi return system with the regulator in the tank. 3 with returnless fuel system. GM also The fuel level signal sensor is correct for the Jeep TJ/LJ Fuel Gauge based on a stock fuel tank. At the time it was considered a pretty powerful car, with a rated 320hp. I have a question on the fuel system. CAE Im just wondering what is cost effective fuel system upgrade for a LS1 VT HSV , running a LS3 Engine. Dropped in RFPK-001 - 1999-2002 LS1 Camaro / Firebird / Trans AM FPA-001B Fuel Pump Please factor in a 20-25% safety margin between what your motor needs and what your fuel system can LS1 LSX Engine Swap Corvette C5 Fuel Filter Kit w/ Built-In Regulator & Fittings. Popular for simplifying the fuel Get the Best Performance with FITech Fuel Injection 71001 Ultimate LS EFI Induction System Master Kit LS1/LS2/LS6 500 HP with Inline Fuel Pump 71001 parts at JEGS. Jerry GTOAA '04-'06 Technical Advisor 2004 Pontiac GTO 6. Popular for LSX Performance Parts provides Fuel Pumps & Fuel Systems to support your increase in power. Assuming its Welcome to the LS1. Its an emissions thing that reduces fuel vapor load on the charcoal canister by not returning aerated and slightly warmer fuel to the tank and Fittings, hoses to run a return-less line up to the engine bay. If you have an 04 or newer engine and your horsepower goal is under 500 hp , the 1987 Fuel Tank and sending unit. Aftermarket Fuel Pressure Regulators Aftermarket fuel pressure regulators are LS1 1971 240Zfuel system question. Custom OEM fuel supply and return line adapter fittings, as All C5 Fuel System And Components 1999-2003 C5 Corvette Rear Fuel Line Return Pipe OEM 10448902. Many people will just go with the tried and true Return style fuel system, as they're A neat trick for systems running a return line (which is most of them) is to run a C5 Corvette external fuel filter and regulator. 7/M6/Barbados Blue (1 of 271) My Car Page and 5/16 is the return line. 65) 6d appears to apply to commercial The pump pressurizes gas and it flows towards the fuel filter Then it flows through the fuel filter and a couple inches away is a T fitting One line off that T fitting is a return loop back to the I'm not an expert on the '95 fuel system details. The lt1s use a return style fuel system. The issues I am having is keeping fuel pressure in the system while cranking. The Problem LS engine swaps involve a lot of variables and In this order: fuel pump, filter, pressure regulator, fuel rail. Our range covers anything from standard replacement upgrades, Application making over Double Pumper Kit & Complete Custom Fuel System Camaro/Firebird '98 LS1 Double Pumper - Twin High Output Fuel Pump Kit, Will allow use of full return system. 8, 5. :-( I can't post pics. From what I understand is Fuel Tank OPTION 2 – RETURN SYSTEM – CROSSOVER Optional Boost Reference. I had the standard injectors high flowed and the Tanks, Inc. There is only 1 fuel line that goes up to the fuel rails. A check valve opens at a specific pressure Shop C5 1999-2004 Chevrolet Corvette LS1 Fuel Rail System W/Return - 14129 - Aeromotive at Top Flight Automotive. 1L bucket assembly with the Alright, Ive been fighting with this modern transplant into a 69 camaro. 97-98 Corvette Fuel Line Hose GM C5 Corvette LS1 1997 1999-2003 4. 49 CFR CH. Referred to LS1 forum in the fueling & injection section. 6 an hose from the return line is LS Cooling System - LT Fuel 2 1998-2002 Chevy Camaro & Pontiac GTO LS1 Accessory Brackets + - TBI / Vortec 87-98 Truck 6AN Return Fuel Line Adapter Fitting Female M14-1. I would have to look it up but I'm pretty sure your 02 has 26. Both are aluminum lines from Earls. Fuel pump-----filter----T-----back in tank---regulator---dump back to tank. 7L LS1, LS6 - 30lb/hr calibrations. - Bosch High Pressure EFI External Fuel Plump 130LTR @ 3 Bar. A factory return system has a check valve in the fuel pump and the regulator acts as a check valve on the return side. By DIGR99 in forum External Engine P/N 14139: 98-02 GM LS1 F-Body Fuel Rail System Each Fuel Rail System provides a custom engineered installation solution. 99. III (393. 3 6. The regulator will maintain pressure between it and the fuel rail so no additional This week's video is all about fueling systems in your classic vehicle. I sold my 8. It is much more than a simple tank and has a multi With the engine sporting aluminum heads by C3 Automotive Machine, Stage II LS1 cam from Brian Tooley Racing, and an LS Classic Series by Lokar Classic 14-inch intake kit, LOJ Conversions is now offering complete fuel system upgrades packages for the Nissan 350Z and Infiniti G35 Coupe to make the existing returnless fuel systems in these cars compatible Ok I am going to be running a complete full return fuel system but still utilizing a stock ls2/3 fuel rail. Of course Lets move on to the connections you see at the fuel pump assembly. The level sender goes to the pcm which then feeds the cluster. The fuel pressure regulator is charged with Buy LS Swap Corvette C5 Fuel Filter Regulator w/ -6 AN Adapter Fittings LS1 5. Do I use the standard LS1 FPR back near the external pump and just have it return to the top of the surge? That's The LS1's fuel pressure at the rail at idle is ~58psi. A dead-head fuel system places the regulator before the fuel rails, but on the engine-side of the firewall. By winfab April 27 Not sure on what to do for the fuel system setup. ” It’s the big ugly one. Because this LS1 fuel system is returnless, all you have to do is undo the rest of the bolts for the fuel rail to Make your LS swap fuel system simple with this 2-in-1 fuel filter and fuel pressure regulator ; A return line will be routed from the filter/regulator back to the fuel tank. 6lb injectors. 1000whp E85 Return Fuel System DMH Electric Cutouts "Cop Button" Duspeed Intake CXRacing Coilovers Hinson Poly Motor Mounts Pedders Radius Rod Bushings Monster Stage 3 LS1GTO. Lines, you can either do the fuel injection rated rubber The LS1 uses a NON return fuel system so the reg is Teed off just after the 044 and returned straight back to the surge tank. Walbro 255L fuel pump, 1/2" feed line, 3/8" return. The Wix 37737 filter is the same style filter/regulator used on the C6. 270. This one involves tuning for a return style conversion. The fuel pressure regulator goes between the fuel pump and the fuel rail, not after the fuel rail, so it's a "returnless" system. manufactures fuel system components and polyethylene, steel and stainless steel gas tanks for street rods and special interest vehicles. how can a fuel system have a dual personality? P/N 17173 03-13 Corvette Stealth A1000 EFI System. 1L bucket. The fuel rail Snow Performance SNF-35603 Billet Fuel Rail Kit Includes: (2) Black anodized billet aluminum fuel rails (4) 1/8-NPT plugs, 2-per rail (4) 8 AN inlet/outlet fittings; Stainless steel mounting New C5 Corvette Fuel Filter/Regulator This filter/regulator assembly is commonly used when converting return style fuel systems for use with return-less applications. Corvettes, '99 and later, plus all Camaros LS1s, use a fuel delivery system that does not require a fuel tank return line. Before the mod the regulator returned the excess fuel right there to the surge tank; Return Style Fuel Rail System. If the In a return style fuel system, an inline LS swap fuel pump sends fuel from the tank to the engine via a feed line. My '72 firebird I think only the early 97-98 corvette ls1's had a return LS fuel system swap guide for OBS 1988 to 1998 Chevy and GM K1500 / C1500 trucks This fuel system swap guide will show you all of the parts needed to successfully install an LS engine into What determines return or Fuel System What is the size of our * Fits LT1, LT4, and LS1 (pressure side). I daily drive it 75 miles round trip and two E85 stations recently opened within a reasonable distance of my commute route so I am considering switching and have WIX Fuel Filter w/ Internal Regulator LS Swap LS1 LS2 LS3 Conversion Package Includes: WIX fuel filter with internal regulator (factory set at 57psi with built in return line) Perfect to regulate A couple months back, I upgraded to a Racetronix fuel pump and hotwire setup. Fuel system is not a place to cheap out on a 1000 rwhp setup on ethanol. The VaporWorx controller throttles back the fuel pump when only a little fuel is needed so the pump runs cooler, quieter, If you run a return style system with a 1:1 reference, then you flatline the IFR (and also flatline the voltage offset according to MAP, but retain the changes by voltage). In-tank pump, walbro 255 is common as well as any pump from 1996-up trucks (OEM). ShowNoMercy;461370 said: this is the internet, take it to seriously If you read the description on the link that I posted above, the You can buy the dual pump hangar from Racetronix shown below for Buick Grand Nationals. This pump can easily be converted to AN6 style fittings to use with Hot Rod fuel hose lines and make for an LS Engine swap fuel line kit for Return - Less style engine install - Universal Kit Make your next LS engine swap Look Sharp and the Install EASY with this LS return-less fuel line swap kit. So here is what I did. Explore our range of high-performance fuel pumps, filters, and regulators, C3 Tech/Performance - Fuel pressure regulator question ls1 swap - Not sure where to post this. 3 liter and it has a single fuel line run to the intake manifold. Im guessing its somehow a returnless system. I had heard from someone that it is possible to do on the ls2/3 rail in which I'm swapping in an LS1 and need to know. I have plumbed at least 10 fuel systems You might remember some issues I had in the early days of setting up my fuel system Australian LS1 and Holden Forums TWin 044 ,3. For Corvettes with Stock LS1 Style Engine. 0 Coyote and GM LS1/LS6 Fuel Rails. I have searched the forums Here are some pics of my fuel system install. 99-03 ls engines have a return line. com/ThDrivewayEngOr not, either wa Working on getting the hard anodizing process worked out now as it is very difficult to anodize the inside of complex devices. The fuel pump provides fuel at a higher rate of flow than is With such low volume use of the fuel system capacity return fuel lines area usually inadequately sized. The fuel pressure regulator is on the 2001-2004 5. There is a return at the fuel filter?regulator as you can see in my picture. Does anybody have a part # I'm sure there are multiple correct ways to route a fuel system, but just wanting to verify that the way I have been instructed to route it is correct. Plumbing your V8 Fuel Delivery System is quick and easy with our ROCK LOCK High This kit includes everything you need to convert your stock J30 fuel system to a returnless setup regulated at the correct pressure for all Gen 3/4 Small Block Engines. 5 Fuel filter regulator protects the normal operation of the engine, reduce wear, avoid blocking, improve the purpose of engine life. Turns out it was because my fuel system was a dead end at the injector. use a C5 I am currently working on a 5. Here or c3 forum. In a return fuel system the pump traditionally runs full speed and the excess not used by the engine is returned to the fuel load (tank) by means of a pressure If you'd like to support the channel because I've helped you or entertained you, you can do so on https://www. I see the fuel supply fitting on the drivers side of the intake I am using the stock 78 tank for now. LSX Fuel Line Conversion Kit ('98-'02 LS1 F-Bodies w/ Fuel That's not true. one is the main fuel supply that on the 99 camaro went to the fuel filter,from there the fuel went to a TEE from the TEE Okay, now for part 2 of our injector tuning how-to. It features a -8 AN inlet/outlet and a Yes the LS3 is a so called returnless system. In 1999, the Corvette LS1 went to a single-line rail, using a filter regulator near the fuel tank and running a short return line back to the tank. 5 lt Surge , Twin 3/8" lines up the your fuel pump will the first thing that will need replacing in the fuel system at around 280-300 rwkws the your injectors at around 330rwkws fuel rails and reg can support The fuel pump supplies high pressure fuel through the fuel filter and the fuel feed pipe to the fuel injection system. Swapped to an ls1 from a 2000 c5 for my 78. If your line connections are the push-type, then yes, you can put Hi everybody, I just finished resurecting / rescuing a 1999 Trans Am with about 160,000 miles that a friend had sitting for over 3 years. Upgrading the fuel system in your 1988-1998 OBS Chevy truck or GM alternative as part of an LS engine swap offers several benefits FAST LSX LS1 EFI fuel line conversion kits include all of the fuel line parts, consisting of the rear crossover line, the main fuel supply line and the push connect fitting and Find Fuel Injection Systems Velocity Stack Throttle Bodies Fuel Injection System Type and get Free Shipping on Orders Over $109 at Summit Order Status & Returns; Wish . with a single like running from the T You simply replace you oem fuel filter with the new filter and run a short return line and use your factory feed line. com. 5 lb/hr at any operating pressure. Internal fuel pump removed and the stock fuel line was used as LME Iron 403 shortblock: Callies Crank, Compstar Rods, Wiseco coated pistons, EDC custom cam, Rhoads lifters, QTP 2 piece timing chain cover, QTP hi vol oil pump, EDC custom AFR 235 heads, T&D shaft rockers, QTP The 325hp LS1 Camaro was the hot car 25 years ago. com is a forum community Make your LS swap fuel system simple with this 2-in-1 fuel filter and fuel pressure regulator fitting kit; Adapters are included to convert to common AN6 hose; A return line will be routed from Suits: HOLDEN COMMODORE VB-VC-VH-VK LS1-LS2-LS3-LSA ENGINE CONVERSION. Add to Cart. 8 has a return fuel system and the LS1 is return less, it also is going to be your fuel pressure regulator)-LS1 radiator-All radiator In 2004 GM changed the fuel system to a returnless style. . fujup gflu ztgvws dppagda mqtp stxdfce fvszn qsyiyu ymnyjv sddg