just want some reassurance on combo choices

Discussion in 'Engine: Repairs , Modifications ,trouble shooting ' started by Grumpy, Aug 26, 2018.

  1. Grumpy,
    Have you had any valve guide issues with those gen 2 heads? Or was that a gen 1 issue only? I remember that head very vaguely.
     
  2. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    HR 230 = 72 degrees advertised cam overlap.
    How much vacuum present on 383 only Grumpy knows with his own combo.

    Going to be likely different 400 sbc and Edelbrock Pro Flow EFI in place.
    Which way it vears up or down I can not predict.
     
  3. What about street muffled with single plane?
     
  4. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Special Rocker Arms Made for TW Gen 1.
    Most guys never purchased.
    Comp makes them only along with Crower.
    HP Stainless steel.
    Guys cheeped out and had issues.

    I have 2 sets of TW Gen 1 Heads along with guide plates and correct Rockers Used on Intake side.
    Complete.
     
  5. Not sure either.
     
  6. I never used them, I remember them having some geometry issues if you didn't set them up properly
     
  7. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum


    [​IMG]

    Single Plane Muffled.
     
  8. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Special Intake Rockers required.
    Trickflow Gen 1 Twisted Wedge was a succes.
    Guys Ran 11's in c4 Gen Corvettes with 355 cubic inches.
    Early Chevy Novas High 10's all motor.

    It was a Marketing failure & Tech Failure.
    Should have sold the special Intake Rockers with them.

    So it ended up a disaster with stock style rockers used 99 % of the time.
     
  9. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I like the Isky RR272/282 Best yet.
    Strongest flat torque band.
    Hp follows in similar linear curve.

    Crower 00484 #2.
     
  10. That's why I remember them. The failures and negative press from the wrong rockers. They definitely should have just supplied rockers with them
     
  11. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I called several years back to Trickflow.
    It was about 2010-2011.
    I was new here on Grumpys site.
    They guy behind the original Twisted wedge heads SBC was gone.
    He went to Summit Racing as a Tech guy.
    Got in contact with him.
    He told me all.
    Made to compete with the Ford Windsor small block Twisted Wedge.
    Ford required no special intake rockers.
    Success in Ford V8.
     
  12. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    They are dated now Trickflow Twisted Wedge SBC.
    Still decent heads on Small cube engines.
    Sized perfect for a 350 punched over to 355 ci.
     
  13. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    the twisted wedge heads work great if your fully able to measure and set up a valve train geometry
    , and get the proper valve tip contact patch on the valve tip,
    the heads got a bad rep simply because most guys simply re-used the original push rods,
    and never had a clue as to the differences in valve train geometry,
    or clearances.. certainly not a problem with the heads,
    but one with the lack of knowledge on the purchasers part.
    http://garage.grumpysperformance.co...heads-for-small-block-chevys.3293/#post-26213
     
  14. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Your Gen 2 SBC Trickflow Twisted Wedge Heads are extremley rare now.
    I have never seen a set for sale in the past 10 years.

    The Trickflow Gen 1 TW heads I see for sale once every year if lucky.
    The special guideplates are super hard to find.
    I have 3 full sets of the guideplates.

    Bought another set of Gen 1's about 2012.

    They sell for $800-1110 or so when they appear.

    keeping mine.
     
  15. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Have to look at offerings from Howard Cams yet.
    Comp Cams.
    Ultradyne.
    Schneider or Schaffer cams.

    There used to be Wolverine cams a division of Crane.
    They worked nice. Out of business a long time ago.
    Still have thier last catalog.

    Any names I missed ?
     
  16. Bullet, I guess they are somewhat merged with ultradyne. I always enjoyed talking with Harold Brookshire.
     
  17. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I looking at Howard Cams this morning.
    They do not List EFI compatible cams for a 350-400 ci sbc Hydraulic roller.
    Deciding myself to choose from Lobe separation & RPM power ranges from pick lists.
     
  18. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    The Howards #110265-12 SBC Hydraulic Roller is interest to me today.
    286/294 advertised.
    233/241 @.050.
    2400-6000 advertised power band.
    .530 Int lift/ .545 Ex Lift with 1.5:1 ratio rockers
    112 LCA lobe separation angle
    108 ICA intake centerline
    1-8-4-3-6-5-7-2 standard firing order.

    I can not find a cam card online & checked Howard's Cam Lobe files....just basic listings.

    No .050" lift events I want to DD2000 accurate.
    IVO, IVC, EVO, EVC.

    Found an old post by Bytor back in 2012 here.
    Looks like he simulated by advertised events with Howards #110265-12.


    [​IMG]

    Bytor somehow found the Overlap specs for Howards 110265-12,
    66 degrees overlap Advertised.
     
  19. I will dig around and see if I can find some more info about it. If not I will give Howard's a call Monday
     
  20. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Yes go ahead and call.

    Find any other cams your interested in let me know.
    We will check out.

    Been busy.
    Crazy past week for if your follow my own thread.
     

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