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  1. J

    building a 451, need cam help

    If this is going to be a street build, stay away from a solid roller, Roller cams have more area under the curve so they make more power with less Dur. numbers then FT cams. But they do need "more" spring pressure then FTs , The XR292HR has a VG rep. for making nice streetable power.
  2. J

    How common is a wiped cam lobe?

    I have to say this, Cam failure is nothing new, It was very common, even back in the 60s/70s, I can't count how many engines i'v tore down that had lobes failing or wiped, Chevies were more common because of there smaller lifter diameter, The problems today are different cam profiles with...
  3. J

    Cam help

    I sent mine off to Bullet Cams, They couldn't do much, but ended up with 477/477 lift, 218/218 dur. @50 & he put it on a 112 from a 114 LSA. It was good for 5K shifts & that was it, In my 71 Swinger i ran 12.5s @ 105 consistantly, the lower end was stock, just an Air-Gap intake, 650dp & headers...
  4. J

    What type of 440 is this? (Pictures)

    The 902 castings came with hardened seats.
  5. J

    440 power guestimation

    I ran with the best of them running "bone" stock 906 heads, Yes, "BONE" stock, look at my sig, that was in a 75 duster, Hyd. FT cam & bolt-ons, 9.73 compression, 4.10 gears & a 4400 stall. Its all in the combo. Ran a best of 10.91 at 120 on a 1.51 60ft., I then made some changes, small FT solid...
  6. J

    china airgap intakes on ebay

    Then YOU got a bad one.
  7. J

    440 power guestimation

    With a stock 452 head, .039" gasket, & a FT piston (with valve relieves) around 0.010" below deck you'll be right around 9.6-9.7.1, borderline for pump gas, I'd shoot for 9.5.1, You'll like that XE cam, it is powerful, I ran a 10.91 with that cam in my 451. I'd say you'll be around 475 Hp &...
  8. J

    china airgap intakes on ebay

    Amen!!! I ran one of those crap-olla intakes on my 360 magnum with 0 issues, Just took off a Perf. 2-0 eddy that was on my BBC, 1 port was smaller then the rest & it was a virgin intake LOL, was there casting flash in the runners, YUP sure was.... So i purchased another crap-olla Pro-comp...
  9. J

    Is this a good idea?

    Let me add, I had a stock 74 360 Dart Sport, it was a 4sp. car, It ran pretty good, But i installed a 75 400 in a 72 Duster, it was out of a Newport, This engine was bone stock, right down to the stock 2 barrel & Exhaust manifolds, it even had single exhaust LOL, stock rearend & 12" stock...
  10. J

    Is this a good idea?

    I say go for it too, A stock 383 will have more grunt then a low compression 360 of that era, If you did go with a 360, pass on the earlier LA engines, go right to a Magnum engine, higher compression, better heads, roller cam, "win-win" on that one. I ran 12.5s @ 105 with a stock bottom ended 95...
  11. J

    Running Lean?

    1st. get the timing right, Then jet it up in the primaries & get it were it feels good, then start jetting the rear, you really need some track time, jet for best MPH, But remember, Running the fastest MPH at the track with result in a richer condition on the street in stop & go traffic, But you...
  12. J

    POS GM G-Body!

    I'm about to.
  13. J

    POS GM G-Body!

    Its been awhile, but i figured i'd vent on the mopar board, Heck its a GM bashing thing lol, I decided to build a GM this time around, found a fairly clean 78 Cutlass 2 years ago, Installed a 406 sbc, well wasn't fast enough, sooooo i went & built a 469 BBC, Installed a 9" with a spool & 3.73...
  14. J

    Did I over cam my 408 for the street?

    I'm thinking 3.58 stroke, yeah i'll agree the 3.55s should work good, but he could use abit more stall.
  15. J

    Did I over cam my 408 for the street?

    I think you'll be fine with the torque of the 408 with that cam, But, the 2 things i'd change are the gears/converter, I'd go with at least a 28-3000 stall & 3.91s & run a 28" tire. Even 4.10s would be nice for a street bruiser. I ran 4.56s in a 370ci smb in a full bodied 73 Swinger with a 2800...
  16. J

    fattest cam in a 340?

    Had a factory 70 340 4sp. Valiant back in 1988, had 3.91 gears, the previous owner installed the largest Crane FT Hyd. they had, The heads had triple springs, If memory serves me, the cam had an advertised dur. of .320/.320, lift was around .570, was on a 108, It wouldn't idle below 1200 rpm...
  17. J

    440 duster. Need engine build advice

    Tell me about it, especially in a 3000 lb. vehicle. Heres a good article on a 600 hp 440 build. http://www.moparmusclemagazine.com/parts/engine/mopp_0510_mauler_440_motor/
  18. J

    440 duster. Need engine build advice

    500 fwhp is plenty enough on the street, I have a very mild 469 BBC in my cutlass, its around 450 fwhp & over 500 lb. torque, You can only apply so much hp on street pavement, even with good tires, unless you have a great suspention you'll just smoke the tires & go no where, I'm in the process...
  19. J

    440 duster. Need engine build advice

    Try 600 hp easy on cast crank BBCs, You can safely run a cast crank in a BBM at 500+ hp all day long, Don't be afraid of cast cranks, If the assembly is all balanced with lighter pistons it'll last forever.
  20. J

    difference between these two cams?

    Slapper bars can work good if you know how to dial them in, Cal-tracs are the ticket these days, if you go that route make sure you use the Mono springs, I made the mistake of using my old worn out multi leafs, a big no-no.
  21. J

    difference between these two cams?

    I'd go with a 1.3/4 longtube or fenderwell, Those 26" tires might be a handful with that much torque, 28" would be better for 3.73 gears & 4" stroke.. Call & talk to Kenny at PTC converters, I would go with a 9.5", he can/will hook you up for a very good price. I like the M-1 single plane on the...
  22. J

    difference between these two cams?

    I say call Bullet & talk with them, If they say yes on that cam, break out your wallet, I'll bet anything he agrees with what i said & that will be all the cam you'll need for a very nice street car & plenty of power with your combo.
  23. J

    difference between these two cams?

    Roller cams have more area under the curve then FT cams, this produces power, That being said, I'd lean more towards the Bullet grind, Bullet has a great reputation when it comes to selecting cams for your needs, Now for instance, If you went with a FT hyd. to produce the same power as the...
  24. J

    cannot get this engine to run

    Glad you found it, I had a feeling it was the coil run wire or a bad switch, just didn't remember what wire feed the coil during the run position, in most cases its always the simplest things that are over looked.
  25. J

    cannot get this engine to run

    Thats what i was thinking.
  26. J

    cannot get this engine to run

    Your not getting fire in the 'run" position, this will not have anything to do with being 180* out, No engine will run 180* out, at least not from what i'v ever seen. You by-passed the ballast & it ran but then quit? Did you disconnect both plugs from the ballast? Sounds like whats happening...
  27. J

    Thinking of changing direction with my engine. Opinions needed

    I ran 10.3 compression on a 370 sbm i did up for a dart, I installed the comp XE284H cam, I ran the stock 915 iron heads, just installed 2.02 intake valves, It had great quench & ran great on pump premium, They were KB 190 pistons. 36* total timing, 2800 stall & 4.56 gears, That engine pulled to...
  28. J

    11 second dart help

    Get the caltracs, just make sure you get the mono leafs with it.
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