FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: happystang on February 12, 2024, 12:12:47 PM
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Hi folks,
I need a sanity check here:
I'm currently running a set of Lunati hydraulic roller link bar lifters (72336-16) in a mild 428 with a Lunati roller cam (559/559 lift 211/219 duration @.50 on a 112 LSA). I had around 30,000 miles on this motor before it was pulled due to a keyway failing.
https://www.lunatipower.com/street-performance-hydraulic-roller-lifters-ford-v8-352-428-370-460-set-of-16.html
I had a set of Lunati roller lifters fail a couple years ago on a hot 306 windsor I built, one of the link bar pins failed and let the lifters spin which wiped the cam. Granted, that engine saw high RPM quite often and I had 70k~ miles on that build.
The 428 is now rebuilt, but I'm a little hesitant to reuse the FE lunati lifters I have because of that other failure.
What is everyone running for roller lifters? I'm thinking of going with Howards, but there are several options. My understanding is that the Lunati lifters I have are rebranded Howard's street lifters.
Howards street:
https://www.summitracing.com/parts/hrs-91169/make/ford
My current Lunati:
https://www.lunatipower.com/street-performance-hydraulic-roller-lifters-ford-v8-352-428-370-460-set-of-16.html
I see that Howards makes a set of "maximum effort" lifter for the FE- has anyone used them?
https://www.summitracing.com/parts/hrs-91261/make/ford
I'm assuming that I would need to get new pushrods as well, it sounds like the 91261 lifters are shorter than the 91169.
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Both Howards and Lunati lifters are made by Morel. They're pretty much all I use for SBF/FE builds.
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Both Howards and Lunati lifters are made by Morel. They're pretty much all I use for SBF/FE builds.
Any preference to the maximum effort vs street lifters?
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For your size cam, I wouldn't use anything except the street lifters.
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Link bar failures are generally due to an out of control lifter. Not enough spring, too quick of a lobe, too much RPM, etc
I had a CJ come in, 8 broke, had flat tappet springs, go figure
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I've run Howards both hydro roller and solid roller. I have a set of their "6500 RPM" rated hydros that I used on a 351C and a pretty agressive hydro roller for drag racing. No issues, except they really meant 6500 as the limit LOL. Might could have spun them higher with a bit more spring load.
"I had a CJ come in, 8 broke, had flat tappet springs, go figure"
That was a huge fail. Somebody tried to cheap out and it cost them big.