[DeTomaso] Torque Plate

[boyd casey]

Chuck "splained it good" but you "spained it more better"

Boyd
 P.S.
I attended Loyola in New Orleans "and dats da truf"
On Wed, Feb 3, 2010 at 11:19 PM, <JDeRyke at aol.com> wrote:

> In a message dated 2/3/10 7:05:25 PM, detomasoregistry at gmail.com writes:
>
> > If someone can 'splain dis better dan I please do!
> >
> Just a couple of additions; ideally, a steel torque plate is used with iron
> heads and an aluminum one for alloy heads. If you're gonna use studs, add
> them before torque-plate-honing, or your results will change.
> And the very first torque plate was reportedly by Smokey Yunick who was
> trying to cope with the poor ring seal and thin decks on early 327-350 Chev
> V-8s. So he bored cylinder sized holes clear through a stock iron head,
> suitably torqued down, then did his boring & honing through the head-holes
> (swapping the destroyed stock casting from side to side). And he found the
> rings
> sealed better and lasted longer, and the engine made appreciably more
> power.
> After that. other engine shops picked up on the practice, except they used
> a
> 3" thick slab of steel instead of a stock head casting.
>
> The Cleveland block has thicker decks so it benefits a little less than a
> Chev. But when a Nor-Cal member's 351-C was measured before & after
> torque-plate honing, all the bores changed when the plate was torqued on.
> The
> variance wasn't much, but if you're using cast/hypereutectic pistons, the
> change
> was an appreciable fraction of the recommended piston clearance. FWIW- J
> DeRyke
>  _______________________________________________
>
> 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
>