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09-25-2014, 06:28 AM | #101 |
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Re: Adjustable or Non Adjustable Lifters ?
Another note: Didn't Johnson also offer longer hollow adjustables for reground cam applications? I thought I recall seeing a set or two sale a few years back.
Does anyone recall these ever being offered? |
09-25-2014, 08:51 AM | #102 |
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Re: Adjustable or Non Adjustable Lifters ?
I think Bruce mentioned that they had some with a thicker head on the tapet adjuster screw.
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09-25-2014, 08:52 AM | #103 |
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Re: Adjustable or Non Adjustable Lifters ?
Yes, there are "tall" Johnsons. However, the difference is only the screw hex is taller, not the body of the lifter.
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09-25-2014, 07:46 PM | #104 |
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Re: Adjustable or Non Adjustable Lifters ?
I've asked that question, also got no response. I have a set I'm going to try, they look very nicely made and test in the high 50s Rc in the hardness tester. I think Flatattack has them also, they might be made in Australia.
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09-25-2014, 07:57 PM | #105 |
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Re: Adjustable or Non Adjustable Lifters ?
This motor is going to be pretty peppy so I just that because I had these solid adjustables, perhaps I should consider lightening them.
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10-22-2014, 03:53 PM | #106 | |
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Re: Adjustable or Non Adjustable Lifters ?
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Quote:
Question is, does the bottom of the lifter have to be tested, or can the side near the bottom get tested? |
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10-22-2014, 03:58 PM | #107 |
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Re: Adjustable or Non Adjustable Lifters ?
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10-22-2014, 04:00 PM | #108 |
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Re: Adjustable or Non Adjustable Lifters ?
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10-22-2014, 05:30 PM | #109 |
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Re: Adjustable or Non Adjustable Lifters ?
Now after you test the Bottom, make sure you remove the high spot with some 600 paper.
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10-22-2014, 05:39 PM | #110 |
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Re: Adjustable or Non Adjustable Lifters ?
Ok will do! What kinda numbers should I be looking for?
Should I have the adjustment bolt tested also? |
10-22-2014, 07:34 PM | #111 |
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Re: Adjustable or Non Adjustable Lifters ?
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10-23-2014, 03:19 AM | #112 |
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Re: Adjustable or Non Adjustable Lifters ?
Ok still on topic, but re the Flatattack lifters, does mike Davidson still have the tooling for these , maybe some enterprising. Flat header could step up to the plate and make some quality lifters on the flat attack profiles.
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10-23-2014, 09:56 AM | #113 |
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Re: Adjustable or Non Adjustable Lifters ?
Well I just came back from the machine shop & I have to say I'm very disappointed with the results.
1st one read 45.7 2nd 39.8 I stopped there. |
10-23-2014, 10:16 AM | #114 |
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Re: Adjustable or Non Adjustable Lifters ?
So these NOS lifters that are being sold on Ebay are New Old Stock junk? I thought it seemed too good to be true.
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10-23-2014, 12:11 PM | #115 |
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Re: Adjustable or Non Adjustable Lifters ?
Check an old johnson for a reference.
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10-23-2014, 12:12 PM | #116 |
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Re: Adjustable or Non Adjustable Lifters ?
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10-23-2014, 01:44 PM | #117 |
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Re: Adjustable or Non Adjustable Lifters ?
Red's Headers are claiming "Rockwell Hardness of 55-58" on theirs:
Lifters - New Johnson Style Hollow Adjustable $215.00 Like the Hollow Johnsons style we have known and loved...but BETTER! With a thicker head on the adjusting screw for easier wrenching. Lightweight (80g) for less wear. |
10-23-2014, 02:30 PM | #118 |
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Re: Adjustable or Non Adjustable Lifters ?
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10-24-2014, 02:18 PM | #119 |
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Re: Adjustable or Non Adjustable Lifters ?
I was told that a good lifter should test at least 60Rc. Drake's claim 62
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10-25-2014, 08:24 PM | #120 |
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Re: Adjustable or Non Adjustable Lifters ?
Silly question, How do they harden those lifters? Is it material or heat treating?
Red |
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