cleveland bottom ends are extremely strong, easily handing 400+hp. be sure your set is balanced well from a reputable machine shop.1973mach1 said:Is the stock crank and piston rods on a Cleveland strong? Im building a 351c 4bbl out of my 2bbl engines and was wondering if the stock piston rods and crank can handle 400HP or so? Is the oil problem that bad? I heard some say yes and some say no. Is it an easy fix? Im going to be rebuilding the engine starting in a few weeks or sooner hopefully.
Thanks,
Jim
1973mach1 said:I think the Windsor's older then the Cleveland? Just wondering why Ford would build 2 completely different 351 engines? Were they meant for different purposes?
Thanks,
Jim
rbohm said:nick, the sactioning bodies did not make the cleveland illegal, but they did add weight to canted valve engined cars, that included the big block chevy as well along with the hemi. ebert the cleveland died because they couldnt be made to meet emmision standards at the time.
D.Hearne said:Only three 351's? I counted 4 of em. Y'all are leaving out the 352, same bore and stroke. Actually all the 351's are 352's. The oiling problem in the Cleveland was only a problem at high rpms, and is easily remedied by either an external line from the front pressure port to the rear, or installing a $10 restrictor kit .And as Foghorn said,the bottom ends are extremely strong, stronger than the Windsors. The stock cast cranks were run in Nascar and Pro-Stock drag racing back in the 70's and 80's, spun up to 9000 rpms ( with a few mods)
It's simple, just run a 3/8 to 1/2 external oil line from the front pressure port above the fuel pump boss, up and over to the rear port, behind the intake. The Cleveland suffers from the main gallery also being the right side lifter gallery. This tends to lose oil pressure around the lifter bodies. The External line just insures the rear mains get as much oil supply as the front does, by tapping into the front oil passage running from the filter to the main gallery and supplying it directly to the rear main. The Nascar and Pro-Stock racers went a little further and installed an oil manifold under the intake , directly supplying the mains with oil from the same source.65fsbkhipo said:Tell me more about this external pressure port routing!