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Author Topic: Recommended bearings for stroker crankshaft  (Read 1670 times)

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Fordman

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Recommended bearings for stroker crankshaft
« on: April 05, 2018, 10:12:32 AM »
I'm looking for opinions from those who have built strokers for bearings  (main and rod). I understand that most stroker crankshafts have a greater radius against the crank cheek. Will FM 125M main bearings work?. Do they have the correct radius for this type of crankshaft. Same with  BBC HN or HK rod bearing?.  Btw...The crankshaft in question is an RPM 4.25" forged crank.Thanks for your time.....John
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jayb

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Re: Recommended bearings for stroker crankshaft
« Reply #1 on: April 06, 2018, 08:11:59 AM »
I always run the FM 125M main bearings on strokers, no issues.  Used to run FM rod bearings too, but have switched to Clevite and have had better luck with those.
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

blykins

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Re: Recommended bearings for stroker crankshaft
« Reply #2 on: April 07, 2018, 01:36:35 PM »
Same here. 

Generally run FM 125M or 146M on aftermarket blocks. 

On rods, I will either run a FM 8-7200CH or a Clevite 743HN.
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Brent Lykins
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