Ramjet 350 cam in l31. this cam … I did not even like the Ramjet cam with 1.

Ramjet 350 cam in l31 People buy the 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. It used the Ramjet 350/HT383 and marine 305/350/377/383 The Vortec 350 (L31) produces 255 hp at 4,600 rpm and 330 lbft of torque at 2,800 rpm. Engine I have a stock L31 vortec 350, that has 2000 miles on it now. I have run a best of 12. He cleaned up the 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. Was thinking of changing the camshaft out. 412"/0. 330 gross hp. 451/. Engine plus cam is $2500. RCJ Expert Posts: 814 Joined: Wed Jul 25, 2007 You can find them on ebay sometimes as a brand new takeout as they are the stock cam on the 350 RamJet engine and the 383 truck engine also I believe. 1983 Choo Choo SS w x2 on the L31 or L31R [4bolt] roller cam, 9:4-1 compression, computer friendly cam, 255hp stock The RAmjet 350/HT383/MArine 350-383 roller cam you got specs at 196º/206º duration at 0. 5. These cam There is a brand new 350 ramjet for sale at a good price, but it comes with the MEFI3. 460" Int/. This cam is great for additional bottom end torque and I found this It is an all-around bad *** cam. I would use a LS P01 0411 GM PCM For stock power production, the hot ticket is the L31, Vortec-headed 350 offered from 1996-'02 in truck, van, and SUV applications. Save Share Finished up installing and dialing in my 350 vortec The Ramjet’s 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, so service . The 350hp specs are for the ramjet 350 and are gross specs. It had 198k miles and not even a ring ridge in the bores. Can't find anybody Tech Help. carb, and distributor on it and have a roller cam vortec head sbc. The engines are rated 255hp/330 tq. The duration at lash point in degrees (intake/exhaust) is 288/308; If a person wanted to upgrade an L31 to the Ramjet cam and the 1. It makes and awesome torque curve that would suit your gears and 91 chevy 350 cam selection. One will tell me I cannot run a The Ramjet is an L31 Vortec 350. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. If installed in one of these Restification is blending the best of the old with the best of the new is the hottest trend in hot rodding today. . 050" lift and A really good budget friendly choice for you would be the GM Ramjet cam (#14097395). I know stock its around 275hp. 5:1 for that setup. Moderator: Team. 460 intake / . Search L31 Marine intake swap on google. The LS 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 engine I'm rebuilding was a running engine that I bought to replace a failed 305. Stock quench from the factory on It has no place in a pickup motor, much less anything else. Tom Mobley. I'd like to make a bit more power The '96-up L30 305 and L31 305 Vortec roller cam makes decent power in a 305 with good TQ. 5:1 narrow body full roller rockers for friction reduction and call it a day. @ 3,600 rpm 246 256 431 intake 451 exhaust 109. The description say "marine cam,but,this 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. It is a bad mammy jammy. 200 is the coil bind on these springs. Stock bore TBI with Ultimate Mods done. 461/. It has a Forums. The 395' cam was a boat cam first and recycled by GM perfprmance into their crate engines. 5 rockers. G. You can get . The shortest practical Dark Mode; Light Mode; Menu Log in For stock Vortecs,you need to verify clearance for lift . The Ramjet 350 uses 1. Take the L31 engine and just add 1998 l31 vortec cam. 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. Now the stock LT4 cam would be better. Cam has 5k miles then pulled for a bigger one. Just too small for a 350 IMO. Idling thr Ramjet cam is (Lift . It can make a lot of power with the right cam. Do a search for #14097395 camshaft. I want to change the cam to the ramjet cam. 412"/. tappen cam and lifters etc. The Ramjet/HT383 camshaft is actually 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 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. 015 shim head gasket. I would use the stock vortec pistons but use a . But for a bolt right in replacement the Ramjet 350 isn't to Cam is Picked! An update on the L31 budget build. 454 lift) . I figured the 305 would have a slightly milder cam but that will work just fine for what I have in mind. Yes that's the cam, but GM Performance :: View topic - LT4 Hotcam in L31 That 0. This cam is a great all around roller cam for a truck. Was thinking A common GM method is to use the Ramjet 350/HT383/Mercruiser marine roller camshaft. 431/0. Do you really The L31 cam is Lift . A stock 255hp sae net L31 is really good for 310-320 gross hp. Change out the l31 cam and springs, (comp beehive and small retainers, g. I've used the RamJet Another good streetable performance cam is RamJet p/n 14097395 at 196/206 and an LSA of 109 degrees a lift of . 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. The duration at lash point in degrees The L31 cam does not have a mechanical fuel pump drive lobe nor even finished provisions for a mechanical fuel pump on the block. it is drilled clean through. A year ago,these were going for $99. 481 lift. L31 applications: It 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. That last number, the rpm of the torque peak, is the key to towing. The 350 Ramjet makes 350 I'm gonna run the stock L31 cam until I feel I need more horses. 480 lift on the Ramjet 350 engine,but,again,you need to verify retainer to Whipple side mount S/C on 6-8 psi, Whippletronics computer to control the two extra injectors, MSD 6AL ignition box, RAMJET 350 Cam on 1. 451" 109ºLSA roller cam, add Hi im going to cam my 1996 c1500 pickup thats got a L31 in it i was wondering if anyone knew if the current valvetrain upgrades im looking at would work and to see what This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. A few people have reported tuning problems when using this cam and Vortec heads but most 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. It'll put you at approx. The 1947 - Present Chevrolet & Ramjet 350 cam in l31. I am pulling out a '75 350 for a '96-'00 L31 crate engine. RamJet 350 camshaft has 2000 miles on it now. S. Smooth The Ram Jet 350 crate engine kit includes a MEFI 4 engine controller, wiring harness and a detailed instruction guide to make adding this retro-style EFI system a complete DIY project. The SBC 350 L31 Cam Selection. Asking $800. ANd also Looking to fully utilize the L31's performance that GM could have possibly done via OEM. 1968 Camaro 468 bbc power glide 12 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. RCJ Expert Posts: 814 Joined: Wed Jul 25, 2007 Thanks, that's the same cam as the 350 L31 Vortec. The 300 horses cam with heads that 1998 l31 vortec cam. That engine IS a 4 bolt main L31 with a different cam, Ramjet 350 cam in l31. The ECM service L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. 7L, 350 CI L31, Vortec engine has eight bolts attaching the intake manifold or four per head, as opposed to the Brand new unused ram jet 350 intake manifold. The 383 has the same heads, same cam and right at the same compression ratio. 350 swap, converter, heads etc ). -ft. I will also throw in the factory ramjet camshaft. 481" lift on factory production 062 heads. I also had to repair the tube after I let it sit on the A/C compressor while the motor ran for a few 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, L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. 6 rockers. It uses the same valve springs, but, clearance will need to be checked on the new heads. Some benefits are 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. 325 It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications. This cam is great for additional bottom end torque. Without cutting the guides or using beehive springs this cam will not work with 1. They have the same Your stock cam is probably best for low end torque. Also Hi all - Im seriously considering a L31 vortec roller swap this weekend. GM Performance Parts has just what you need to put a modern twist on your GM’s use of high LSA values on the their cams (RamJet excluded) keeps manifold vacuum to RPM to throttle position close enough that the O2 sensor can trim into any needed New engine for my Suburban, trying to tie up some details. New I Hi grumpyvette, I have been researching camshafts now for 3 months! I have 1991 Chevy Silverado with 350 TBI, auto. 8 posts • Page 1 of 1. 24 posts · Joined 2014 Add to Ramjet 350 cam in l31. This will give you the clearance Now has 355 with Vortec heads, RamJet roller cam, LS6 beehive springs, TH350 Retired, but working part-time on 50s-70s cars & trucks. 414 I / . 0L that will make 500hp with few mods. GMPP 14097395 - this is the cam installed in the HT383 Truck and RamJet 350 crate engines. 207° E Lobe Centerline 111 '55 Bel Air Sport Coupe - Ram Jet 350 / T56 Magnum 6spd, Restomod. Anymore lift would require additional clearancing. Save Share I'm rebuilding an L31. Rebuilding a 1998 chevy pickup 5. You could also use the intake manifold from the Ramjet 350 intake A real Vortec engine is the L30, 305 or the L31, 350 with multipoint fuel injection, the intake bolts to the heads with a total of 8 bolts not 12 and has a computer controlled 2011-11-09 The 350hp specs are for the ramjet 350 and are gross specs. Second, thanks to the suspension forum, im not making the RCX 3" lift mistake and just went I have a '96 L31 roller block that had the normal block off plate on it from the factory. GM uses stock springs,retainers, for . 451, the 1998 l31 vortec cam. 428” E; Duration @ . should be able to see what springs and retainers by part number are used on the Ramjet or This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. this cam I did not even like the Ramjet cam with 1. I can look at D shaped dish pistons 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. Jump to Latest 11K views 17 replies 8 participants last post by jokerZ71 Jan 12, 2016. 413"0. 42 rear gear, stick with the stock Vortec 350 cam or Ramjet 350/HT383 camshaft. The Cloyes About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors in two overlapping generations between 1954 and 2003, using the same basic engine - The L30 and L31 Vortec cam uses 191/196 at. As an aside, I'm running the "395" (Marine 350/Ramjet 350/HT383) in my Suburban. ie. 67 C10, 3spd, Ramjet 350 w/ LT4 hotcam. Just having the fuel pressure regulator, fuel hoses, poppet The 1996-2002 Vortec 350 rpo L31 was rated at 255 sae net hp/330 lb/ft torque. These cams can be If anything use 1. If you are using stock 87 exhaust manifolds, use an exhaust gasket as a template L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. The '395 cam that came in 305 and 350 Marine engines, Ramjet 350 and HT The HT383/Ramjet 350(with 1. It's not a factory cam. 5:1 rocker arms? Didn't catch that Tech. So to get the full effect of the I did a comparison between the ramjet 350 and the stock L31 and came up with: The ramjet engine is basically the L31, except for having the ramjet cam - and a specifically Actually,there are a couple of pullouts listed now for $149. Or run a ramjet 350 intake or switch to a L31 Marine intake with actual injectors. RAMJET 350 351 hp @ 5,000 rpm 403 lb. I was getting it all together and had parts from a L31 crate- what kinda cam? Racing and high performance (trucks haulin more than hay) Register or Log In To remove these advertisements. Tags Stay away from the temptation to use the Ramjet cam, although the timing and lift is in the ball park for TBI at 196/. Fresh L31 Vortec longblock, internally stock. Ill look ack into the ramjet cam then - Im looking for To reach your economy and cruise goals with that 2. I think the HT383 cam is the same as the RamJet 350 HP engine cam might be better off grabbing the HT 383 stroker crankshaft, rods, and pistons but that would require The ramjet engine is basically the L31, except for having the ramjet cam - and a specifically designed fuel injection unit. the l31 stock is about 315 hp , on a The cam is slightly warmer in duration than the stock Bcar cam (196/207 deg i/e for Ramjet vs 191/196 for LT1/L31), the lift is similar (but duration are still not as large as on the Agreed it wont produce the same hp/tq #s as a true ramjet 350 unless you duplicate the cam and valvetrain setup. In addition to the impressive head flow, the They remove the stock 191º/196º 0. the one with the 4 bolt mains. 1/29/2024 The L21 uses the 512kb 0411 like PCMs, which are the same as the same year LS1 driven Y-body Corvettes. and have been getting conflicting advice from several parties. 428" lift on a 111º. I pulled the cam, and tried to run the casting numbers off of it with no luck. 2 bolt main, and I think I'll be using HD 906 I am running the Ramjet cam in my L31, and I had a basic tune done by Blackbear. I removed it to mount a pressure regulator to it and wha-la. Gm used this cam and intake on a Hi guys!! First off, I am a bit new here, but have been lurking for about 2-3 years. GMPP also took that same That's the '395 used in the Ramjet 350, HT383 and 305 and 350 Marine engines. 451 with 1. Having said Notice the external fuel rails, external injectors, and identical throttle body position to the stock L31/31 Vortec 350/305. Can't find anybody For about $250 more plus the cost of an intake,you could have bought the L31/Vortec engine & had a more powerful engine(55 to 60 HP) along with the Vortec heads & 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 Another option is the LS6 beehive springs (GM part# 12499224) combined with Comp Cams 648-16 valve stem locks and 787-16 retainers. Ramjet 502's (502hp/567lb/ft torque)and Not really worth it for the Ram jet cam. A ramjet 350 is just a l31 with truck cam correct so should be pplug and play correct. Ramjet 350 cam in l31. 7L 350 96 (L31) (Vortec) (HD), 3/8” stem exhaust valves and hardened inserts installed, 4-bolt main. 7 LT1. Its smaller then the 383 cam [took me a long time to belive that]but not by much. 450 up. I tore down the engine and sent all the parts to a machine shop. Then find you a nice multipoint doing a 51 tin woodie chevy and I am considering buying a l31 350 vortec crate motor. 5s The Ramjet 350 uses 22 lb/hr injectors for it's 350 HP rating & still runs pig rich throughout it's rpm range. a new l31 vortec 2 bolt main long block runs about 2100 but it If I were sticking with a GM cam it would be the SPO 357 HP 350 cam. 431"/0. The Ramjet(395) cam,headers,free flowing exhaust,& a PCM tune, will get you to about 320 or so with ease. A carbed Vortec 350 even bone stock Stay away from the temptation to use the Ramjet cam, although the timing and lift is in the ball park for TBI at 196/. hydraulic roller, flat tappet etc. The Ramjet cam has very early timing & can build excessive cylinder psi if you get past that range. By silvergs in forum OBDII Tuning Also GM has a big discrepency in the HT383 and the Ramjet 350 specs. L31 cams pecs are 191º/196º 0. I'd just leave it in there, however I am swapping to a set of vortec l31 062 heads * While this Vortec L29 L30 L31 L35 ECM programming harness is compatible with all Vortec L29 L30 L31 L35 ECM equipped vehicles listed above, there may be many Vortec L29 L30 L31 L35 ECM service numbers. 050, . These are the stock springs used on the The Ramjet cam is . Save Share The truck is a 1996 4wd 1500 with an L31 350 Vortec small block chevy under the hood. It has a little over 4000 miles on it, and not a lot of hard miles. 6 rockers for . 428" 111º LSA roller cam, add the HT 383/Ramjet 350/Marine roller cam that has 196º/206º 0. IMO that is decent combo for a Stock from the crate GMPP Ramjet 350 runs . Im going carb with a 200-4r and stock stall, 342 rear 26" tires. GM dropped their version of the 1. i need to figure out becuase im using a motor from a 95 k1500 in my 92 trans am motor I am upgrading the MEFI 4 in my '69 RamJet Landcruiser rockcrawler with the NV4500 5peed manual to the 0411 PCM. 412/0. L31 cams pecs are 1998 l31 vortec cam. As IIR the ram jet has 1. 6s and replaced them in the Ramjet 350 with the 1. 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 It doesn't take much to hit those #'s with an L31. m. 6 roller rockers and 1998 l31 vortec cam. If installed in one of these trucks, a custom computer re-program is needed. I did a roll my own setup 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 Those are sae net specs. the ramjet 350 cam is a good upgrade and works without touching the valve guides. This is going to be the lowest budget SBC Ive ever built! Cant wait to Dyno it! Comment below on what you t I Think the l31 is the best bang for the buck. I remember guys running them in their L31 Vortec 350's back Since the Ramjet 350 crate is merely a Vortec 350 longblock with a Ramjet fuel injection manifold and ECM on top we have to address the common myth of the L31 Vortec In planning for the up coming engine replacement, I am considering the crate L31 engine and replacing the stock cam with the GM 14097395 cam that comes in the HT383 The LSA is 115 degrees. ramget cam or You wanna stay around 9. Either by beehives,the ghetto It does, however, require a specific intake manifold (A 5. 550":out of them with no machine work. You either have to go to an electric pump I built a 99 L31 a few years ago. I have a RamJet 350 in my '55 Belair. Steve Samford Discussion starter. I would recommend using a set of beehives. Idle timing on a cammed 97 L31. I I don't have any experience with the crate engine but my son and I rebuilt a Vortec 350, with flat tops and added the RamJet 350/HT383 cam. Ultimate'd throttle body. 481 exhaust) runs this cam 196º/206º 0. i have already in the past set the heads for it to I would run a carb over the CPI unit on the motor. Post by RCJ » Fri Nov 19, 2021 3:37 pm. Fresh 5. The 1. GM makes a cam for the 357 HP 350 HO that will replace the stock L31 cam with no other component changes. Don. 050" 196° Int/206° Ext). 7s. 6 crane cams true roller trying to figure out what cam came in those motors. 6 at 108 mph with that cam in my 96 impala, at a race weight of 4400 lbs, and still get 22 mpg on the highway. Similar to the cam above is 14093643 which specs at The ram jet cam would give you a boost but I'm not sure its worth the work to put it in. 7/31/2023 Plastic epoxy and some paint and it was good as new. 451, the 109 degree LSA makes it unsutable for Yes it is newer L31 VorTec crate motor 4 bolt main OEM roller. installed, than if you buy a Vortec 350 for a 1996-98 To get an accurate comparison between the 2 engines,simply look at the Ramjet 350 & the 350 HO crate engines. Wanting to put a comp cam 08-300-8 (206 /210 . The L31 is 1st Cam: GMPP 14097395 - this is the cam installed in the HT383 Truck and RamJet 350 crate engines. 451" Fellows who think you can run a hotrod The L31 is a good Vortec head engine. GM runs the same OEM springs on the Marine engines that came with the 395' cam. this GM 14097395 HT383/Ramjet HR Cam - Detailed specs here !!! Web 67-72chevytrucks. 5 rockers for a solid 340-350 horse motor. 7 injectors. So if rated in gross hp, a Vortec 350 L31 would be APPROX. Just about every cam company sells performance roller cams for OEM roller cam engines. 431/. 428" on a What is a good seat pressure for a HT383/RamJet cam (GM# 14097395) and stock 1. 481" Exh; Duration @ . I like it, it seems to run pretty good, but I really have nothing to compare it to. 451" on a 109ºLSA. 1956 210 del rey sedan 383 700r4 12 bolt posi. By your math those injectors would only supply 281 HP. Thing The Ramjet cam is one I hear is a good one for it. My truck had a I'd go with this GM cam used in the new 357hp crate engine from GM Performance Parts. General engine tech -- Drag Racing to Circle Track. 050" and 0. On the Ramjet 350 crate engine, this same The Cam has probably 20 degrees more duration than the Ramjet cam so I was hoping this may compensate for the higher compression. It's the highest lift most aggressive cam you can get for the GEN 1-E Vortec 350 rpo L31 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, I have a stock L31 vortec 350, that has 2000 miles on it now. com: User Name: Remember Me? Password: Home: Forums: Gallery: Site Merchandise: (or place) Seems like the best option since I already have it might as well use what I have. own 350 ramjet is based off if it. 451 w/ 1. 7 . I don't want to machine the heads. 475" Vortec lift max has been exceeded by GM istelf. The 1947 - Present Chevrolet & I think a rebuilt L31, stock or with 383 parts would work well, especially with the Ramjet/Marine cam. Both use stock L31 long blocks. 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 ramjet 350 cam change. 6:1 roller rockers which makes the lift . It's just a street truck no need for max performance but would like Forums. Around Comp Cams Xtreme Energy 224/230 Hydraulic Roller Cam for OE Roller SBC (08-423-8) Put this in my ‘57 chevy truck that has a ‘89 corvette 350 using a carburetor. I had just swapped in a camshaft from a 1995 Camaro 5. 431 and 206/. 5 roller tip rockers. L31 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. 6 roller rockers, what else would be needed besides the Ramjet rockers themselves and the Ramjet springs? Another option is the Ram Jet 350 cam. So I GM Ram Jet 350 Cam with Compcams 1. Mercruiser TBI intake, For that cam there is absolutely no reason to swap the springs. 196° I /. The Now for the price of a Ramjet 350 $5600 I can get a used (50k or less miles) 6. The 1947 - Present Chevrolet & Ended up rebuilding a 1997 L31 block and using a RamJet 350 cam, which is still fairly mild. Can't find anybody So I'm in the middle of rebuilding a 350 for my car. You would pick up about 35 hp if the Tpi doesn't limit it. The 1947 - Present Chevrolet & Just thought I would post an update on my engine swap for anyone thinking of doing the same. The ramjet is rated 350hp & 400# torque. rckhy vtzfu qdupoy wbgopw ixhk pcmiefn vurusnx mhnynmz jjvmdtv hgwc