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05-07-2009, 06:33 PM
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#1 |
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Member
Join Date: Feb 2005
Location: Dayton, MD
Posts: 222
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Re: 351 w RPM
Stock rod won't work...RPM sensitive... the piston weight, no mater what it is, will make the rod elongate at hi rpm and pinch the bearings at the parting line and starve it for oil and then ... ca boom. The stock rod is marginal to 6000. You really need after market rod that has more big end integrity...
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Bub Whitaker |
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05-07-2009, 09:38 PM
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#2 |
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Member
Join Date: Mar 2002
Location: Nashua,Iowa
Posts: 136
Likes: 84
Liked 32 Times in 14 Posts
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Re: 351 w RPM
For what it's worth, I flat will not build a 351W with stock rods anymore. Every time In the past I let a customer talk me into it for a "low buck" circle track engine the rods have broken. As was stated before if you keep it below 6000 rpm it may last, awhile. A really good "low dollar" rod for these engines is a Eagle "SIR" series with ARP bolts. MUCH better rod than the factory piece. Hope this helps.
Jay
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Jay Roeder facebook.com/racefuelsales Former N/SA , Soon to be SS/AS, Renegade Race Fuel dealer |
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05-15-2009, 06:05 AM
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#3 |
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VIP Member
Join Date: Oct 2008
Location: Somerset,Ky
Posts: 1,372
Likes: 355
Liked 308 Times in 103 Posts
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Re: 351 w RPM
I've got question if 351W rods marginal @6000 how can 351Cs live at 7000-8000 with shorter version of same rod?I've seen plenty of them ran 7000-8000 range and live.What did 4BBL 351C stock-super stock
combos run before aftermarket rods were legal,I know they did'nt stay 6000 and below if you try to run 4BBL 351C without going over 6000 your're wasting your time. By all means I'd run aftermarket rod since you can buy eagle SIR style etc. just few dollars more than prepping stock rod w/bolts,float pins,if you bushing them you'll spend more than aftermarket I-beam cost. Mike Taylor3601 |
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05-15-2009, 07:13 AM
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#4 | |
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Banned
Join Date: Feb 2008
Posts: 852
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Re: 351 w RPM
It was not the same rod just shorter! 351-c has a different journal dia (smaller) that 351-W
Alot of guy's used Boss 351 which had a magged rod, it was also a forging and special bolts. Quote:
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05-15-2009, 05:32 PM
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#5 |
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VIP Member
Join Date: Oct 2008
Location: Somerset,Ky
Posts: 1,372
Likes: 355
Liked 308 Times in 103 Posts
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Re: 351 w RPM
rod throw on crank is same size 351W-351C-351/400M but 351C/M 400M rod housing bore is ten thousands larger than 351W. So I guess 351 boss rod would be about like Chevy ''pink'' rod?
I've always liked 4 bbl 351C could have something to do with me loving RPM. Mike Taylor 3601 |
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