Search results for query: 318 cams

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  1. W

    SpeedMaster Heads for a 5.9 Magnum

    @MOPAROFFICIAL Hi, i have read this thread but not quite sure if I understand everything correctly. I want to buy these Speedmaster heads: Mopar Chrysler SB 318 360 170cc 65cc Hydraulic Roller Assembled Cylinder Heads My cam is Comp cams 20-746-9. Are these heads p&p for Mag engine with...
  2. 273

    SB vs BB who wins?

    100%, to me the only reasons not build a 318 is if rpms/gear/stall is too much for you for hp/performance level you want. Not just for the 318 that basically goes for any engine.
  3. H

    318 power!

    Yeah I figured as much. He lamented the fact that no one here ever wanted to talk about doing up 318's. I'd imagine those cams are well into the 300+ duration figures.
  4. gagembassett

    Hughes STL5460AS-8 vs Lunati 40200913LUN cam

    I'm not disagreeing. I live both styles of cams. I collect cams and off the shelf definitely have potential that's for sure. However I just feel more comfortable knowing that it doesn't cost a penny more to have a cam company take time and find something that is best suited for me. Hell Jim at...
  5. 273

    Does this prove David Vizard's 128 lsa formula ?

    No that would be his recommended lsa, for street and or race. Say you like comps xe256h cam on 110 for your engine, to DV that choice basically you'd keep the same basic overlap and cut the cam on 105 lsa with that overlap and that would give you your new duration, probably something like a 250...
  6. Garrett Ellison

    Good Cam for 318

    The “no matter what certain to make a performance improvement in a high geared low compression 318.” Works well with any of the 318 port intakes. Mile-A-Mor Cam [3901M] - $246.00 : ISKY Racing Cams, Do It Right
  7. hwy2

    Stroke a 318

    Thats what I am thinking
  8. Gewaltakt

    Confirming 302 Head Exhaust Valve Rotator Removal Parts

    For anyone else who may be seeking 318 exhaust valves to replace the rotator keeper valves in 302 heads, here's some info that should help: The following three part numbers are all the same valve. They are easily found with an online search. Qualcast 10-1329 SBI 01329 Melling V1329 Their...
  9. YY1

    IM surprised by Richard Holdeners 360 Magnum camshaft swap.......

    I was under the impression the 5.2 and 5.9 Magnum roller cams were a bit hotter than the LA roller cam, which did, in fact look pretty near identical to the FT pre- LA roller cam. I've asked in a few places if the LA roller version at least had faster ramps to take advantage of the rollers, but...
  10. D

    LSA Question

    318 cams are wanting a bit. A 360 cam is likely going to perk it up a bit and still keep a smooth idle. A 340 cam may introduce a bit of lope to the idle. This is really where the tune comes into play.
  11. Garrett Ellison

    LSA Question

    I think you’d like this cam if you have 2.94 or 3.23 gears. From what I’ve seen lately, Isky still has a high success rate for cam and lifter break in if you get their lifters, although I hear Rhoades non leak down lifters are good, too. It’d work really well with a Holley Street Dominator...
  12. M

    headers vs manifolds on a 318 2bbl difference ????

    I agree on all your points. Considering this van engine is a stockish 318 that would be pressed to spin to 5k rpm, a dyno of this engine would give more usable info if started at a lower rpm. Even then we don't get much info about part throttle driveability from dyno testing.
  13. Kern Dog

    Do you let your old engine warm up or just get in and drive?

    I run it long enough to where it can idle without stalling, then drive it easy until it is up to temperature. I don't have a choke so it is all foot and feather until it runs steady. These flat tappet cams need varying rpms for proper oiling. No flat tappet engine will like long idling periods...
  14. rumblefish360

    Compression Ratio per Camshaft Size

    Oh how I was about to give this a 4-1/2 star rating! 2 things. I’m not sold on your possible next cam choice BUT if you did the homework on valve timing events, I’m thinking it’ll work for you. I normally don’t mess with small cams. To that end, I’m finding out the best true street drivers work...
  15. dart4forte

    road car cam for my 318

    He may be retired by now but the guy that runs Oregon Cam gives great advice. His name slips my mind right now. He’s a wealth of information. Oregon Cam is still in business.
  16. toolmanmike

    road car cam for my 318

    2000 rpm at 75? Don't use a cam with any performance designed into it. With the OD and those gears most any cam but a stock spec one will be too much. (generally speaking)
  17. K

    273 correct heads?

    On my 73 318 block I have cast iron heads 2843675. These were used on 67 318s and 68-69 273s with 2-bbl carbs. 1.78 intake/1.50 exhaust. Small chambers 62-64cc, small ports. I had Basko Engines in Gilbert AZ open valves to 1.94/1.60, polish bowls, used lightweight valves, 320 springs. They did...
  18. 33IMP

    SB vs BB who wins?

    Agree. I like to compare a 318 to a 327 chevy. There were two barrel, low compression 327s, usually in a full size impala with no gear, and a powerglide. They couldn't pull a fat girl off a tricycle. The 318 is very similar to that 327, a low-po workhorse, with no pretense of performance, so no...
  19. Ted265

    Probably a Dumb 318 Question

    I'll chip this in before this thread turns into a complete **** show: A lot of guys will jump on the "get a 340/360" bandwagon - which is good advice if you are shopping for a motor to build up BUT you already have the 318, so i say go for it. Also God help you if dartswinger70 reads this - it...
  20. Joey N

    Probably a Dumb 318 Question

    Reason I grabbed the 340 ones is because my block is a 74 engine and I don’t believe it comes with good rods that year I could be wrong but I am also doing as much of the work at home so I wanted to be able to put the pistons into the pins with little to know trouble unlike the press fits, I am...
  21. 273

    Hypothetical 318 Builds

    Not saying cr has nothing to do with but additional airflow is also help making low end tq, plus the low cr 318 with xe262h cam is making 45 tq over stock cam at 3000 rpm to with zero cr help and obviously the 4bbl vs 2bbl helps too. That 10.5:1 ported EQ 247/247 477 hp has the strongest curve...
  22. YY1

    318 cam

    I would personally take second look at Summit, specifically the 6900/6901 cams. A .480 lift is pretty big for an otherwise stock, low compression 318. Those two I mentioned above have been proven to "wake up" a 318 without going overboard and also without requiring lots of other performance...
  23. 273

    Low speed torque and driveability ?

    What I was trying to show with all the dyno is that even with various cams in 318/340/360 from stock to fairly wild all made decent torque at 3000 rpm for sure, decent evidence that at 2500 rpm most if not all still doing ok, less evidence but even at 2000 rpm all seems good especially is...
  24. toolmanmike

    340 intake on 318

    You can edit. Nice blower motor but nothing to do with 318 port mismatch. :poke: :lol:
  25. d55dave

    [SOLD] Small Block Pushrods

    For sale is a set of small block ball / cup pushrods. These allow you to use the 273 style of ductile iron adjustable rocker with a hydraulic flat tappet cam. They can be used in any Dodge, Plymouth, Chrysler small block 273, 318, 340, 360 with adjustable rockers. I believe these were from...
  26. Jadaharabi

    Adjustable rocker identification?!

    Not having studied the 300 series cars that much what engines did they have in them that had adjustable rockers? 273 or 318 poly, 413?
  27. spd691

    CAM HELP NEEDED!

    The engine did have a solid cam in it when I bought it. I like the idea of a quiet maintenance free cam, if I can have it. The cam That was in it had the following stamps on it. I actually considered putting hydraulics on it. I have not determined the profile of it yet. I can only assume its a...
  28. 273

    David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

    I don't care if this build will/has moved goal post, the flow numbers they gotten out of the 318 parts can easily reach the 318 HP goal, I'd rather them do a zero deck 318 build, and get as many cams and top end parts they can a dyno every combo under the sun.
  29. toolmanmike

    318 cam

    Any cam you install (unless it is real close to stock specs) should be checked for clearances.
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