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  1. R

    Perf 440 build - Pushrod Question(s)

    That's exactly what I did! Thank you!
  2. R

    Hydraulic lifter pre-load

    That's helpful - I actually don't see a number on the Hughes information. I'm going to re adjust to 1 full turn + a scoche.
  3. R

    Perf 440 build - Pushrod Question(s)

    BTW yourpoint about Hughes is well taken. I do no tlike number of things they do and this might be another of those. Really not too hard to get shims between the alumiun pieces so that's likely where I'll go. I appreaciate your input.
  4. R

    Perf 440 build - Pushrod Question(s)

    I am certainly not arguing the point here, but there is no mention of using shims between all of the aluminum pieces. Says shim as necessary. I'm at least going to make a call to Huges tomorrow (that's if I can get anyone on the phone) and go from there. All of the Spacers are aluminum (.125"...
  5. R

    Perf 440 build - Pushrod Question(s)

    Hughes engines insructions: 3. The rocker tip need not be centered left to right over the tip of the valve. We have included 0.015” and 0.030” shims to be inserted between the rockers, spacers or hold-downs for alignment of the tip (Illustration #2). Total sideclearance between a pair of...
  6. R

    Perf 440 build - Pushrod Question(s)

    I was wondering that myself on the clearance between, but Hughes is showing .005 - .015 as clearance in the instructions. I split the difference. I didn't shim between all of the aluminum spacers as it did not call for the on the instructions unless I missed something. Getting these to line...
  7. R

    Hydraulic lifter pre-load

    Finally got the TF 270 heads on, the hughes 1.6 rockers on, and the pushrods in. Cam is comp hydraulic flat .545 241/247 (.581 with the 1.6 rockers) and comp lifters. Comp calling for .045 lifter preload. Seems like an awful lot of preload. Thinking the trick is to keep the inner plunger off...
  8. R

    Perf 440 build - Pushrod Question(s)

    Pushrods are perfect. I've got the Hughes rockers shimmed and all lined up. Went for .010 side clearance on the individaul banks. I've adjusted some of the rockers for preload of about .030 with about 1 thread showing out of the adjusters. That's another question I'll post in another thread...
  9. R

    Head Gasket Cylinder Overhang

    Well I did end up going with the Marine gasket. I see a number of people have used the standard FP gasket with the aluminum heads, but the FP tech said it wasn't rated for that application so I went Marine. I just got the Hughes 1.6 rockers on and shimmed. I used Manton for the pushrods...
  10. R

    Perf 440 build - Pushrod Question(s)

    Just ordered the pushrods from Manton - 3/8 OD .095 wall. $258. 2x days. I added .030 for lifter preload. Also ordred the Edelbrock max wedge intake today - that was silly $. Thank you all for your input.
  11. R

    Head Gasket Cylinder Overhang

    Update...talked to FelPro. They want at least .010 away from the bore, no overhang. Kinda knew this. So gasket options: FP 1009 4.41 bore, .039 compressed. Have sliver moon hanging over top of cylinder, WON'T WORK FP 8519PT1 4.505. .039 comressed. Clears Cylinders, won't work on aluminum...
  12. R

    Head Gasket Cylinder Overhang

    No sure what you are referring to here - chamfer on the block? Update - I just found another tech article on the upper cylinder Chamfer on the B/RB blocks. WTF was the factory doing? This is becoming a headache. This is likely what I'm fighting.
  13. R

    Head Gasket Cylinder Overhang

    The bore on that gasket is 4.59". The 8519 boes is 4.505". I'm only a few thousdandths off on the 2009 so leaning toward the 8519. The other issue with the 1039 is the compressed thickness of .051". The 1039 puts my compression to 10.1. The 1009 is 10.48. The 8519 10.14. Has anyone...
  14. R

    Head Gasket Cylinder Overhang

    I went with those gaskets becuase of the tighter bore (4.41") and because TF recommends. My bores are .060 over which should be 4.38". Everything else lines up. The other FP gasket will change the compression a bit. Was trying to stay in the 10.5 range. It seems like all of the bores on the...
  15. R

    Head Gasket Cylinder Overhang

    70 440, .060 over, TF 270 heads TF called for the FelPro 1009 gasket. The gasket bores are not round. On the intake side (top) of the gasket it overhangs the bores. So bore on the 440 with .060 should be 4.38". FelPro website says 4.41 bore size on that gasket. I've got plenty of room on...
  16. R

    Perf 440 build - Pushrod Question(s)

    Agreed. I also need to see what the head gasket thickness is - I didn't compress it on this go around. So it's just mocked up. That's likely enough for the lifter preload.
  17. R

    440 Source CNC head review on YT

    Why no mention of the TF 270? I do understand the additional costs to use the TF heads (going through that now), but for the $ they look great on flow numbers. I also realize this is TFs flow bench. .600 343/253 On the video it looks like a lot of "pepper" in the casting. Where are those made?
  18. R

    Perf 440 build - Pushrod Question(s)

    I'm going to re measure today - thank you!
  19. R

    Perf 440 build - Pushrod Question(s)

    Thank you. The spring pressures aren't crazy with what I've got on the heads: 1.460" O.D. dual spring with damper (TFS-16893) 120 lbs. @ 1.900" installed height 394 lbs. @ 1.175" open 390 lbs. per inch rate .650 max lift Just drives me nuts with how expensive stuff has gotten for a medium HP...
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