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  1. J

    Port the RPM's or TF240

    Yep, can be hard on the trans if your in 1st, I use the original valve body but with a TF2 shift kit minus the high gear restrictor as I run 15 springs in the high gear clutch. The valve body has low band apply and I fitted a 16 roller 6 bolt sprag and billet front drum. I start in first (no...
  2. J

    Port the RPM's or TF240

    Yes, was running 12.3's with a 1.95 60ft, the last run I let the tires heat up more so that it dragged the engine down on the burn out. Just getting a feel for the car at the moment.
  3. J

    Port the RPM's or TF240

    So two years on I finally got to go to the track. Same combo as before but changed the crank for a new scat forged crank. I opened up the port runners and trimmed down the guide bosses myself, had a 30 degree backcut done on the intake valves and added some 1.6 mancini arms. 4.1:1 gear and...
  4. J

    Engine load from auxiliary equipment

    Here's a comparison for you, 10.2:1 440 3.75 stroke, 850DP pulls just over 13" @ 900 with an xe275hl Hyd (231/237 @ 50 275/287 seat timing .525 lift). Same engine with a EX282S solid 244/252 @ 50 282/290 seat timing with .520/.540 lift - pulls around 11.7" @ 900. Both on 110LSA. The 275 cam had...
  5. J

    Factory Tach accuracy

    The real time tach kit is a winner, my factory tach was way off, installed the RT insert and it is dead nuts on the money. MSD Magnetic pickup distributor and Rev-n-nator controller. The sticking issue could be another problem on top though.
  6. J

    Issues with main bearing clearance

    King do 0.001" either side of standard for BBM. Scat also cut the rod journals at low side for their BBM 3.75 crank.
  7. J

    Engine oil PSI

    If you have 70 psi at idle hot or cold you must have some fairly tight bearing clearances. I run a 440, solid flat tappet with 0.0025"- 0.0027" clearance rods and mains, 10W40, it has 70 psi cold idle but drops to 35psi hot. That is with an HV pump, if I swap out the spring from my original...
  8. J

    Mancini rockers

    Thanks, not planning on guessing, just want to know where is best for the adjuster to be. I would imagine not more than a couple of threads showing below the arm.
  9. J

    Mancini rockers

    What is the ideal number of threads showing on the adjuster for the mancini 1.6 rocker arms, 440. Need to order some pushrods, thanks.
  10. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    Thanks for the heads up on the Penrite, and yes we have that here. matter of fact Supercheap has the 10w40 full syn on special for 29.99 for 4 liters, I ordered a couple of packs for my daily the other day.
  11. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    Thanks, good to know, what is your opinion on Dino vs synthetic for older engines. I know a lot of guys stick with what they have had good results with, what is your preference.
  12. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    I don't know of any synthetics that have a high content of zinc and phosphorus, maybe there is but I haven't seen or used one. From what I have seen synthetics use other products such as moly and calcium in their HP package, mainly I imagine as high levels of zinc is not compatible with...
  13. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    I'm sure that is sound advice, and what has been said for some time now and something that has worked - for the most part, FT cam failures still seem to happen regardless of oil, correct break in etc. I could offer up examples of opinions in favor of synthetics, one from David Vizard, renowned...
  14. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    I ran a synthetic oil (oil extreme) for 6 years with a XE275HL (904 lifter) cam, 120 seats, 295 open. Can't recall the zinc/phos content, something like 800PPM. The cam showed no sign of wear when I took it out. There is plenty of thinking online that a good synthetic will provide the...
  15. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    The comp XE cams are cut for the .842 lifter, the XE-HL is the .904 lifter grind as Beanhead said. XE274(842) - XE275HL(904)
  16. J

    Reliability of Lobes Designed for .904 Flat Tappet Lifters

    I ran an XE275HL in a 440 for 10 years with no issues, when I pulled it looked great with no visible wear. I changed it for a solid to work better at the track with a set of 4.10 gears. The XE275HL laid over about 5500RPM in my combo. It did kick up a bit of noise which is typical with that line...
  17. J

    Rocker Shaft Install

    Don't be tempted to over tighten the hold downs, doing so can run the risk of ovaling the shafts and causing a bind on a rocker.
  18. J

    727 TCI Streetfighter question

    Overhaul on a 727 ain't that hard, with some reading and good advice along the way it is within the reach of most. It is a good idea to have some info regardless, I would advise Carl munroe's book on the 727 and the FSM.
  19. J

    1971 Charger 8 3/4 w/ Sure Grip and 3.23 Gears

    The 71 sure grips were a 489 case, they have the thrust block and are fine to run greens and the thrust. The 742 with buttons may be different I am not sure. I run greens and stock axles with the thrust in place in my 71. The axles seated down and I have had no issues. I also confirmed this...
  20. J

    1971 Charger 8 3/4 w/ Sure Grip and 3.23 Gears

    If you have stock axles the thrust will be fine to be left in there with the green bearings but after market axles can be longer and cause an issue.
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