351 w RPM

ronnie · 05-06-2009, 01:15 PM

I have a stock rod 351 windsor (they were ground /peened etc.) have 558 gram piston 10.1 and a cast crank.
Should make between 500/ 550 hp. Will these rods hold and how much will the crank take...3300# car

Thank you!

PS... Thinking of going to Manley Pro series i beam rods....This is a spare motor and don't want to put much into it.

RT

Mike Taylor 3601 · 05-07-2009, 10:37 AM

I'd estimate it be safe 7000-7500 rpm.350 chevy would live there if anything 351W has as strong if not stronger rotate assm. in stock form.If haven't put oil restrictor kit I'd consider that.
Mike Taylor3601

BlueOval Ralph · 05-07-2009, 11:04 AM

And a high pressure Oil Pump, don't forget the W has a 3" main dia.

Quote:

Originally Posted by Mike Taylor 3601

I'd estimate it be safe 7000-7500 rpm.350 chevy would live there if anything 351W has as strong if not stronger rotate assm. in stock form.If haven't put oil restrictor kit I'd consider that.
Mike Taylor3601

buzzinhalfdozen · 05-07-2009, 11:38 AM

Cranks OK to 7000-7500, biggest problem is keeping rod bearing in one. Sorta long stroke narrow big Dia. bearing, bore big end doesn't like to stay round. This is from my personal exp. Joe

Chris1529 · 05-07-2009, 01:15 PM

What kind of balance do you have on it?
I'd say to keep it under 7000 if you want it to live.

Bub Whitaker · 05-07-2009, 06:33 PM

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...

05-06-2009, 01:15 PM	#1
ronnie Junior Member Join Date: Aug 2004 Location: detroit Posts: 2 Likes: 0 Liked 0 Times in 0 Posts	351 w RPM I have a stock rod 351 windsor (they were ground /peened etc.) have 558 gram piston 10.1 and a cast crank. Should make between 500/ 550 hp. Will these rods hold and how much will the crank take...3300# car Thank you! PS... Thinking of going to Manley Pro series i beam rods....This is a spare motor and don't want to put much into it. RT

05-07-2009, 10:37 AM	#2
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,368 Likes: 346 Liked 292 Times in 101 Posts	Re: 351 w RPM I'd estimate it be safe 7000-7500 rpm.350 chevy would live there if anything 351W has as strong if not stronger rotate assm. in stock form.If haven't put oil restrictor kit I'd consider that. Mike Taylor3601

05-07-2009, 11:38 AM	#4
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: 351 w RPM Cranks OK to 7000-7500, biggest problem is keeping rod bearing in one. Sorta long stroke narrow big Dia. bearing, bore big end doesn't like to stay round. This is from my personal exp. Joe __________________ Joe Buchanan SS/BX 3117

05-07-2009, 01:15 PM	#5
Chris1529 VIP Member Join Date: Dec 2006 Location: West Virginia Posts: 1,366 Likes: 6 Liked 70 Times in 29 Posts	Re: 351 w RPM What kind of balance do you have on it? I'd say to keep it under 7000 if you want it to live. __________________ Chris Bowman The Mountain State Mustang 1984 Mustang GT350

05-07-2009, 06:33 PM	#6
Bub Whitaker Member Join Date: Feb 2005 Location: Dayton, MD Posts: 222 Likes: 0 Liked 1 Time in 1 Post	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... __________________ Bub Whitaker