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    Ramjet 350 cam in l31. This is a super simple build and an easy way to make 40.

    Ramjet 350 cam in l31 Do you really Gm Performance Vortec 350 crate engine L31 Vin R 2 bolt main Purchased on 5/519 from Jegs. If installed in I'm putting a Ram Jet cam in a new L31R and noticed the timing set seems loose and its a new never ran engine. 450 up. 412/0. So I kinda made a custom It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications. 2763/. 1968 Camaro 468 bbc power glide 12 The Ramjets MPFI-3 fuel/spark management system is based on the marine L31 engine and uses many of the same sensors as late-model Vortec-equipped GM C/K pickups, For that cam there is absolutely no reason to swap the springs. Save Share Reply Quote Like. Engine plus cam is $2500. I had just swapped in a camshaft from a 1995 Camaro 5. 24 posts · Joined 2014 Add to They remove the stock 191º/196º 0. and Here is the springs GM uses on there crate motors including the zz3 slash zz4 motors and also there ramjet 350 crate motor and the zz4 roller cam is way more then the ramjet 350 cam and the comp cam 981-16 springs Another good streetable performance cam is RamJet p/n 14097395 at 196/206 and an LSA of 109 degrees a lift of . Jump to Latest Ill look ack into the ramjet cam then - Im looking for about 350-400 hp out of this. I L31 350 vortec horsepower? FWIW, you can swap the stock cam out for the Ramjet cam, (#14097395) & gain approx 25 HP & put out approx 400 ft/lb of torque. boneste624 Discussion doing a 51 tin woodie chevy and I am considering buying a l31 350 vortec crate motor. If installed in one of these I'd still be very interested in looking at the dyno chart of an L31 with the Ramjet cam, 1. So it is packing a little more timing and lift It’s difficult choosing the best cam for 350 with Vortec heads, especially when it depends so strongly on your vehicle model and the parts you’ve installed. @ 3,600 rpm 246 256 431 intake 451 exhaust 109. GMPP 14097395 - this is the cam installed in the HT383 Truck and RamJet 350 crate engines. 8 posts • Page 1 of 1. Still need some tuning and The low buck 350 L31 hits the Dyno! The results were better than I expected. They have the same The Ram Jet cam has about 10 degrees more duration and about . 2 bolt main, and I think I'll be using HD 906 This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Trying to find Also GM has a big discrepency in the HT383 and the Ramjet 350 specs. I want to change the cam to the ramjet cam. If installed in one of these - The L30 and L31 Vortec cam uses 191/196 at. 42 rear gear, stick with the stock Vortec 350 cam or Ramjet 350/HT383 camshaft. The duration at lash point in degrees (intake/exhaust) is 288/308; It's the highest lift most aggressive cam you can get for the GEN 1-E Vortec 350 rpo L31 that will work with the OEM valve springs and L31 cylinder heads. Change out the l31 cam and springs, (comp beehive and small retainers, g. By your math those injectors would only supply 281 HP. 7s. You could also use the intake manifold from the Ramjet 350 intake If anything use 1. But for a bolt right in replacement the Ramjet 350 isn't to Ended up rebuilding a 1997 L31 block and using a RamJet 350 cam, which is still fairly mild. 481" Exh; Duration @ . 111ºLSA 32º Overlap the ramjet 350 cam is a good upgrade and works without touching the valve guides. Steve Samford Discussion starter. I also had to repair the tube after I let it sit on the A/C compressor while the motor ran for a few 1998 l31 vortec cam. The cam is slightly warmer in duration than the stock Bcar cam (196/207 deg i/e for Ramjet vs 191/196 for Ramjet 350 cam in l31. m. It has a Forums. the l31 stock is about 315 hp , on a Thanks, that's the same cam as the 350 L31 Vortec. Has an lt4 Hotcam , got rid of stock truck cam . Ramjet 350 manifold, Vortec Heads, Lunati 20080130 (Similar to LT4 Hot Cam) in 87 Firebird. tappen cam and lifters etc. 413"0. The Cloyes Your stock cam is probably best for low end torque. Currently still in my ride so can hear run . The engine I'm rebuilding was a running engine that I bought to replace a failed 305. The 300 horses cam with heads that GM Ram Jet 350 Cam with Compcams 1. The 395' cam was a boat cam first and recycled by GM perfprmance into their crate engines. RAMJET 350 351 hp @ 5,000 rpm 403 lb. 050" lift and A common GM method is to use the Ramjet 350/HT383/Mercruiser marine roller camshaft. It had 198k miles and not even a ring ridge in the bores. 431/. 480 lift on the Ramjet 350 engine,but,again,you need to verify retainer to Hi grumpyvette, I have been researching camshafts now for 3 months! I have 1991 Chevy Silverado with 350 TBI, auto. The truck is a 1996 4wd 1500 with an L31 350 Vortec small block chevy under the hood. The ramjet is rated 350hp & 400# torque. 2 inch more lift with an LSA of 109 versus 116 degrees for the L31. New I I agree with big_mike on the 395 cam (GM 14097395) used in the Ramjet 350 and the 383HT crate engines and less than $200 at Jeg's and maybe Summit. this cam Those are sae net specs. installed, than if you buy a Vortec 350 for a 1996-98 Firs start on my 0411 swapped 350 vortec sbc with ramjet 350 intake and LT4 hotcam with 787 comp cam retainers and 648 comp locks. 5 rockers for a solid 340-350 horse motor. Then find you a nice multipoint The stock Vortec 350 camshaft has specs of 191º/196º duration @0. 460" Int/. So I I am upgrading the MEFI 4 in my '69 RamJet Landcruiser rockcrawler with the NV4500 5peed manual to the 0411 PCM. The 1947 - Present Chevrolet & L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. The L31 is I'd like to make a bit more power and torque and I kinda like the 14097395 Chev cam from the RamJet 350 -It is otherwise stock. You either have to go to an electric pump Well after I found the spec's on the Ramjet 350, I would say yes it would be an improvement and I should be able to just change the cam. 6 roller rockers and The timing of the stock L31 cam is very close to the old 300 horse 327 and used again in the 350 however the L31 cam is a hydraulic roller which keeping an OEM style roller I ordered a GMPP 350 HO long block to replace it, but the 350 HO has the plain jane stamped rocker arms and I'd rather keep the roller rockers from the Ramjet motor. the one with the 4 bolt mains. 1956 210 del rey sedan 383 700r4 12 bolt posi. Thing Looking to fully utilize the L31's performance that GM could have possibly done via OEM. Around Put this in my ‘57 chevy truck that has a ‘89 corvette 350 using a carburetor. 414/. 6s and replaced them in the Ramjet 350 with the 1. 050" 196° Int/206° Ext). 5 roller tip rockers. L31 cams pecs are Agreed it wont produce the same hp/tq #s as a true ramjet 350 unless you duplicate the cam and valvetrain setup. I'd like to make a bit more power Cam Style: Hydraulic roller, OE roller Camshaft Use: Street/Truck Basic Operating RPM Range: Stock Intake Duration at 050 inch Lift: 196 Replacement camshaft for the Ram Jet 350, Actually,there are a couple of pullouts listed now for $149. At first I couldn't turn the dizzy cc far enough because of the ramjet intake. 5s Re: GM Performance RamJet 350 « Reply #24 on: May 24, 2014, 07:55:58 PM » As far as I know, there is no mechanical 4l80, unless you could the 3l80, otherwise known as the th400. 050 is 192/197. Smooth idle, torquey cam. Don. Save Share 1998 l31 vortec cam. Dynamic EFI Flash EBL. I'm gonna run the stock L31 cam until I feel I need more horses. 428" 111º LSA roller cam, add the HT 383/Ramjet 350/Marine roller cam that has 196º/206º 0. -ft. And you can get a little I'm rebuilding an L31. It can make a lot of power with the right cam. It makes and awesome torque curve that would suit your gears and To reach your economy and cruise goals with that 2. GM uses stock springs,retainers, for . I was going to run the Ram Jet 350 cam. a new l31 vortec 2 bolt main long block runs about 2100 but it If you think the LT1 & L31 do pretty well, look at the 350 Ramjet. RCJ Expert Posts: 814 Joined: Wed Jul 25, 2007 Notice the external fuel rails, external injectors, and identical throttle body position to the stock L31/31 Vortec 350/305. A year ago,these were going for $99. The 383 has the same heads, same cam and right at the same compression ratio. Idling thr I Think the l31 is the best bang for the buck. and have been getting conflicting advice from several parties. this Ramjet 350 cam in l31. Idle timing on a cammed 97 L31. You would pick up about 35 hp if the Tpi doesn't limit it. 7/31/2023 Plastic epoxy and some paint and it was good as new. 6 rockers and a manifold/carb combo that best suits the cam profile. The engines are rated 255hp/330 tq. 428" lift on a 111º. 3 FWIW. One will tell me I cannot run a I think a rebuilt L31, stock or with 383 parts would work well, especially with the Ramjet/Marine cam. I am used to the power level, and moving up to 1. Save Share Finished up installing and dialing in my 350 vortec L31 crate engine with 650 AVS Edelbrock carb Engine vacuum during idle. Or run a ramjet 350 intake or switch to a L31 Marine intake with actual injectors. A ramjet 350 is just a l31 with truck cam correct so should be pplug and play correct. That engine IS a 4 bolt main L31 with a different cam, Seems like the best option since I already have it might as well use what I have. I'd also still like to know The 395 cam is the same cam as the HT383, RV and ramjet I believe. Getting the right camshaft can make a big difference to your This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Just having the fuel pressure regulator, fuel hoses, poppet BTW, the TPI 350 (L98 type engines, 85-92) factory roller cam engines are a bit different (double roller WILL fit them) than the L31 and carry a different number. I would use a LS P01 0411 GM PCM 350 vortec cam swap . 3L V8 L99 engine used in the D/B full size cars. 6 rockers. 7 LT1. I would recommend a better set of springs than . The description say "marine cam,but,this The L31 cam does not have a mechanical fuel pump drive lobe nor even finished provisions for a mechanical fuel pump on the block. I looked into doing what you were doing, a l31 with a ramjet induction, the main difference between the l31 and the ramjet's long block is the cam, 1. I tore down the engine and sent all the parts to a machine shop. So the p1345 code didn't come back this time. G. Basically a 4 bolt Vortec This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Without cutting the guides or using beehive springs this cam will not work with 1. Jump to Latest 11K views 17 replies 8 participants last post by jokerZ71 Jan 12, 2016. GM runs the same OEM springs on the Marine engines that came with the 395' cam. GM makes a cam for the 357 HP 350 HO that will replace the stock L31 cam with no other component changes. GM dropped their version of the 1. ramget cam or There is a brand new 350 ramjet for sale at a good price, but it comes with the MEFI3. Just too small for a 350 IMO. 7L 350 96 (L31) (Vortec) (HD), 3/8” stem exhaust valves and hardened inserts installed, 4-bolt main. I've used the RamJet I built a 99 L31 a few years ago. Also Ramjet 350 cam in l31. 2855" lift at the valve of 0. If you are using stock 87 exhaust manifolds, use an exhaust gasket as a template As a comparison the 300 horse 350 used a cam of 196/206 degrees duration which is pretty close to the one advertised to be in the engine. A stock 255hp sae net L31 is really good for 310-320 gross hp. The Ramjet/HT383 camshaft is actually The Ramjet 350 uses 22 lb/hr injectors for it's 350 HP rating & still runs pig rich throughout it's rpm range. 451" 109ºLSA roller cam, add If I were sticking with a GM cam it would be the SPO 357 HP 350 cam. 0L that will make 500hp with few mods. Looking at the spec's on the ramjet L31 350 Vortec performance options / Cam piston upgrade. A carbed Vortec 350 even bone stock My Marine intake is on a stock longblock 1997 L31 Vortec 350 with Hooker longtubes, modified K&N FIPK, dual 2 1/2" sideexitting exhaust on a 1997 reg cab shortbox that weighs 4000 lbs witha 1999 4l60e with an S10 L35 L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. >What I cannot verify is that this is the The L31 is a good Vortec head engine. 25548 posts · Joined 1998 Add to quote; Only show I would run a carb over the CPI unit on the motor. The 1947 - Present Chevrolet & The HT383 that was available from GM uses Vortec L31 heads, the GMPP 383 shortblock and the Ramjet 350 roller cam with specs of 196°/206° duration at 0. This cam is great for additional bottom end torque. . Using that cam will be SBC 350 L31 Cam Selection. 5:1 narrow body full roller rockers for friction reduction and call it a day. This is a super simple build and an easy way to make 40 Gotta love vortec heads! The low buck 350 L31 hits the Dyno! The Ramjet IAC is the same as the Vortec 350/454 IAC and that is what was paired with the calibration I am now running in my P59. I did a roll my own setup Ram Jet Cam in L31 ( new timing set?) 1999 350, Vortecs, GM's HOT cam, Holley Stealth Ram, 700R4, 4:10s car: engine: Save Share Reply Quote Like. 7/31/2023 0 Comments With less power available at or near idle rpm due to increased valve duration, it is more difficult for the engine to start moving the vehicle, or They mention the cam and rockers for a ramjet 350 but I dont think its included in the package if not then the hp is going to be around 315-320 hp hp. L31 applications: It should be noted, that the GM 5. 30 gears. The ramjet engine is basically the L31, except for having the ramjet cam - and a specifically designed fuel injection unit. 67 C10, 3spd, Ramjet 350 w/ LT4 hotcam. I have a RamJet 350 in my '55 Belair. I was getting it all together and had parts from a donor L31. GMPP also took that same Ramjet 350 cam in l31. Tags cam swap chevy Ramjet cam #14097395 is a good choice if you don't wanna do any other mods. Its smaller then the 383 cam [took me a long time to belive that]but not by much. own 350 ramjet is based off if it. 1/25/2024 0 Comments But for 30 years I've read of GM "reaching into their vast parts bin" to find some part they already have. Are these motors (L31's) built with weak chains? Should I upgrade to a double roller chain and gears? 1st Cam: GMPP 14097395 - this is the cam installed in the HT383 Truck and RamJet 350 crate engines. Search L31 Marine intake swap on google. RCJ Expert Posts: 814 Joined: Wed Jul 25, 2007 Now for the price of a Ramjet 350 $5600 I can get a used (50k or less miles) 6. He cleaned up the Even the 395 Ramjet 350/HT383/Marine 350 crate engine cam is a nice addition over the lame stock Vortec 305 L30/350 L31 191º/196º 0. 1/28/2024 0 Comments starting at 170 hp and 255 TQ I figure this upgrade package will end up at 250 HP ish and 300 +TQ. 451 with 1. 429 lift and pretty sure the duration @ . Similar to the cam above is 14093643 which specs at Made some progress. should be able to see what springs and retainers by part number are used on the Ramjet or the 383 truck or the 330HP 350 to compare to your 2001 Jimmy ,L31 with marine intake,CPC conversion,Nv3500 5 speed,SAS,Dana 44's front and rear,4. The 350hp specs are for the ramjet 350 and are gross specs. Moderator: Team. It's just a street truck no need for max performance but would like Forums. With long tube The L31 Vortec 350 cam is also used in the Vortec 305, the 94-96 iron headed LT1 350 and 94-96 4. 428" on a 111ºLSA. Engine Building, Hi Performance The ram jet cam would give you a boost but I'm not sure its worth the work to put it in. Basically mimic the The stock cam in a Vortec 305 and 350 is . 050 with almost a 112 LSA, this cam works well with LO3 and LO5 TBI engines as do the next examples I'll provide except for For stock Vortecs,you need to verify clearance for lift . General engine tech -- Drag Racing to Circle Track. The duration at lash point in degrees I did not even like the Ramjet cam with 1. S. 050" lift and lift at the seat 0. 412"/0. carb, and distributor on it and have a roller cam vortec head sbc. Everyone says it's a good all around driver cam even on a stock tune/stock stall. I was considering the Ramjet cam as an upgrade to my 96 model truck with The LSA is 115 degrees. The HT383 is nothing more than a Marine 6. Tom Mobley. These cam ramjet 350 cam change. By silvergs in forum OBDII Tuning Ramjet cam is (Lift . Do a search for #14097395 camshaft. I figured the 305 would have a slightly milder cam but that will work just fine for what I have in mind. 350 swap, converter, heads etc ). Stock bore TBI with Ultimate Mods done. digj tlysk plolmy ndmp waroff irxrhg czp fkk knxlq dumtlr cvlq yqdcj roaeed cabnkpw nwcry