[DeTomaso] 2 bolt vs 4 bolt Mains......care to offer anopinion??

[wkooiman at earthlink.net]

You need to read Dan Jones's article on 351C rebuilds.

I'm not the expert, but here's what I understand from listening to the experts:

There is no advantage to running a 4-bolt 351C block over a 2-bolt other than for bragging rights.  They are exactly the same except for the extra 2 bolts.  In fact, when 351C blocks fail, the mains are still torqued in place and doing fine.

351C cylinder walls are not any thinner than 302, 5.0, or 351W cylinder walls.

351C cylinders, however, are mostly unsupported.  They benefit greatly from a partial block fill.  My block is filled to just below the water pump inlets, which is also just above the bottom of the freeze plugs.  I used Moroso HardBlok.  I'm sure my oil runs a little bit hotter, but not enough to worry about.  If you are interested in this, Dave Williams wrote a good article about it.

And finally, most shops don't know how to hone a Ford 351C block.  They use a stone that is too hard.  Again, I'm not the expert, I'm just repeating what I've been told.

Will.


-----Original Message-----
>From: Edward Comber <eds73l at hotmail.com>
>Sent: Oct 11, 2007 6:41 PM
>To: Mark McWhinney <msm at portata.com>, "'John Bentley (jab)'" <jab at cisco.com>, 'Scott Couchman' <scottcouchman at yahoo.com>, 'Pantera Forum' <detomaso at realbig.com>
>Subject: Re: [DeTomaso] 2 bolt vs 4 bolt Mains......care to offer anopinion??
>
>
>I have a 2 bolt main stroked and in the 500 HP at the fly wheel range. Everything I have read says the 2 bolts are as good as the 4 except for the cap being able toshift sideways. I don't abuse it very much :>0 only now and then and have a 6000 rev limiter on it. About 4-5K on it so far and runs great.
>Good Luck
>Ed> From: msm at portata.com> To: jab at cisco.com; scottcouchman at yahoo.com; detomaso at realbig.com> Date: Thu, 11 Oct 2007 16:04:15 -0700> Subject: Re: [DeTomaso] 2 bolt vs 4 bolt Mains......care to offer anopinion??> > A mostly stock Pantera (or Mangusta) is able to run in the ORRs. You don't> need all that extra HP unless you are running in the higher classes.> > > -----Original Message-----> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On> Behalf Of John Bentley (jab)> Sent: Thursday, October 11, 2007 3:58 PM> To: Scott Couchman; Pantera Forum> Subject: Re: [DeTomaso] 2 bolt vs 4 bolt Mains......care to offer> anopinion??> > I choose "A" or just sell the whole thing to me! :)> > JB> > > > -----Original Message-----> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]> On Behalf Of Scott Couchman> Sent: Thursday, October 11, 2007 3:55 PM> To: Pantera Forum> Subject: [DeTomaso] 2 bolt vs 4 bolt Mains......care to offer an> opinion??> > I just pulled the Cleveland out of my '72 Pantera and discovered that it> has 2-bolt mains with closed-chamber heads. I assume it is out of a> Torino or such. I'm looking to build a 450hp mild-performance engine for> street and ORR. Any one want to voice an opinion on what to do?> A - Go ahead and build it with the 2-bolt main block and just keep the> rpms below 6300.> B - Build a grocery-getter and forget about running ORRs.> C - Bite the bullet and locate a rebuildable 4-bolt block and start> over.> D - Find the deepest lake within a one-day drive and pitch the 2-bolt> block somewhere near the center of the lake.> E - Some combination of the above.> > > ---------------------------------> Be a better Heartthrob. Get better relationship answers from someone who> knows.> Yahoo! Answers - Check it out. > _______________________________________________> > Detomaso Forum Managed by POCA> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/> > DeTomaso mailing list> DeTomaso at list.realbig.com> http://list.realbig.com/mailman/listinfo/detomaso> _______________________________________________> > Detomaso Forum Managed by POCA> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/> > DeTomaso mailing list> DeTomaso at list.realbig.com> http://list.realbig.com/mailman/listinfo/detomaso> > > _______________________________________________> > Detomaso Forum Managed by POCA> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/> > DeTomaso mailing list> DeTomaso at list.realbig.com> http://list.realbig.com/mailman/listinfo/detomaso
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