Boat
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- Posts: 1870
- Joined: Wed Mar 12, 2014 10:37 pm
- Location: Santa Clara, Ca
Re: Boat
Ford changed the firing order to reduce the load on the front rod journal.
Ron
Ron
Re: Boat
it fits a 351w but can be used in a 302 also. Is that what you meant Pop?popscomet wrote:do you know why??poboyjo65 wrote:The thumper cam from comp that I'm using has a 351w firing order.Lip Ripper wrote:Firing order depends on the cam. A lot of performance cam's for 289/302's use the 351W firing order.
Re: Boat
THE WAY I SEE IT ,IF it wasn't for lighten the load on the throw,the CAM MAKERS could have left them alone...besides I read many yrs ago why ford did it.......it might be a money thing but I really don't know......think of the load when 1 and 5 fire almost togetherpoboyjo65 wrote:I've heard all that about the crank flex but what I'm saying is in my case it was so that comp cam could save money by selling same cam for both engines.
pop/glenda
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- Posts: 1870
- Joined: Wed Mar 12, 2014 10:37 pm
- Location: Santa Clara, Ca
Re: Boat
What I read was cyl 1 & 5 were firing so close together it was speeding up failures on that journal or accelerated wear was why they changed it. That's all I know.
Ron
Ron
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- Posts: 5933
- Joined: Mon Feb 20, 2006 12:57 am
- Location: Camarillo,California
Re: Boat
I have been racing SBFs for way too long,NEVER had a crank or bearing failure with 15426378 FO!! When I built my first 351W,used a COMPCAMS cam that was ground to the early FO,365,000 miles later,never had a crank or bearing issue.My 418" Windsor has a Crane Cam ground with the early FO,NO issues!! I heard FoMoCo did it for smog reasons,NO proof though!!I do have cams in the wagon and the Cougar that are ground with late FO,they all seem to run fine!!! JMO , ROY.
Real Racecars have 3 pedals
Re: Boat
THAT ALSO GOES FOR POP,all my stuff runs plenty good always have ,,fo has never been in play,,it is what it is ...of course POP don't have extra high hp ,but they all run good and mostly have for several yrs
pop/glenda